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All questions of General Scientific Developments for Civil Engineering (CE) Exam
Consider the following statements about a computer named “ Greenware” .
1. ‘Greenware’ is completely free of both hazardous PVC (Polyvinylchloride) and BFR (brominated flame-retardants).
2. Manufacturing of ‘Greenware’ can be a special action like replacing all standard light bulbs with CFLs or a more general application to live more ecologically.Q. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements about a computer named “ Greenware” .
1. ‘Greenware’ is completely free of both hazardous PVC (Polyvinylchloride) and BFR (brominated flame-retardants).
2. Manufacturing of ‘Greenware’ can be a special action like replacing all standard light bulbs with CFLs or a more general application to live more ecologically.
1. ‘Greenware’ is completely free of both hazardous PVC (Polyvinylchloride) and BFR (brominated flame-retardants).
2. Manufacturing of ‘Greenware’ can be a special action like replacing all standard light bulbs with CFLs or a more general application to live more ecologically.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
Sounak Basu answered |
‘Greenware’ is completely free of both hazardous PVC and BFR and its manufacturing can be a special action like replacing all standard light bulbs with CFLs or a more general application to live more ecologically.
What is a keyboard used in a computer for?- a)To input text and numbers and send commands to the computer.
- b)To create new keys to use with your computer.
- c)To open the computer up.
- d)To create pictures and images and send them to your computer.
Correct answer is option 'A'. Can you explain this answer?
What is a keyboard used in a computer for?
a)
To input text and numbers and send commands to the computer.
b)
To create new keys to use with your computer.
c)
To open the computer up.
d)
To create pictures and images and send them to your computer.
|
|
Saptarshi Malik answered |
A computer keyboard, a typewriter–style device having a particular arrangement of buttons or keys, is a main input device. It inputs text, numbers and sends commands to the computer.
A computer cookie is a small text file placed on computers by a website. Which among the following can be the use of cookie?
1. Cookies can carry viruses.
2. Cookies can be used to maintain data.
3. Cookies can be used to track internet user’s web browsing.
4. Cookies can install malware on the host computer. - a)1 and 2 only
- b)2 and 3 only
- c)3 and 4 only
- d)All the above
Correct answer is option 'B'. Can you explain this answer?
A computer cookie is a small text file placed on computers by a website. Which among the following can be the use of cookie?
1. Cookies can carry viruses.
2. Cookies can be used to maintain data.
3. Cookies can be used to track internet user’s web browsing.
4. Cookies can install malware on the host computer.
1. Cookies can carry viruses.
2. Cookies can be used to maintain data.
3. Cookies can be used to track internet user’s web browsing.
4. Cookies can install malware on the host computer.
a)
1 and 2 only
b)
2 and 3 only
c)
3 and 4 only
d)
All the above
|
Mayank Joshi answered |
Activity.
4. Cookies can personalize website content.
5. Cookies can store login information.
6. Cookies can improve website performance.
The correct options are 2, 3, 4, 5, and 6. Cookies are not capable of carrying viruses.
4. Cookies can personalize website content.
5. Cookies can store login information.
6. Cookies can improve website performance.
The correct options are 2, 3, 4, 5, and 6. Cookies are not capable of carrying viruses.
A team of scientists at NASA with the European Space Agency are working to probe dark energy or the existence of dark matter. Consider the following statements in this regard.
1. Dark matter is called so because it does not interact with light.
2. Dark matter interacts with ordinary matter through gravity and binds galaxies together like an invisible glue.
3. While dark matter pulls matter together, dark energy pushes the universe apart at ever increasing speed. 4. Dark matters are potentially effective in many dignostic devices such as PET scanners.Q. Which of the statements given above are correct?- a)1, 2 and 3 only
- b)2, 3 and 4 only
- c)1, 3 and 4 only
- d)1, 2, 3 and 4.
Correct answer is option 'A'. Can you explain this answer?
A team of scientists at NASA with the European Space Agency are working to probe dark energy or the existence of dark matter. Consider the following statements in this regard.
1. Dark matter is called so because it does not interact with light.
2. Dark matter interacts with ordinary matter through gravity and binds galaxies together like an invisible glue.
3. While dark matter pulls matter together, dark energy pushes the universe apart at ever increasing speed. 4. Dark matters are potentially effective in many dignostic devices such as PET scanners.
1. Dark matter is called so because it does not interact with light.
2. Dark matter interacts with ordinary matter through gravity and binds galaxies together like an invisible glue.
3. While dark matter pulls matter together, dark energy pushes the universe apart at ever increasing speed. 4. Dark matters are potentially effective in many dignostic devices such as PET scanners.
Q. Which of the statements given above are correct?
a)
1, 2 and 3 only
b)
2, 3 and 4 only
c)
1, 3 and 4 only
d)
1, 2, 3 and 4.
|
|
Saptarshi Malik answered |
Dark matter is a type of matter hypothesized in astronomy and cosmilogy to account for a large part of the mass that appears missing from the universe, it does not interact with light. It is also hypothesized that it interacts with ordinary matter through gravity and binds galaxies, and it pushes the universe apart.
Consider the following statements:
Assertion (A): Space Based Solar Power (SBSP) is considered to be made a national goal.
Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability.
Q. Select the correct answers from the codes given below:- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
Assertion (A): Space Based Solar Power (SBSP) is considered to be made a national goal.
Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability.
Q. Select the correct answers from the codes given below:
Assertion (A): Space Based Solar Power (SBSP) is considered to be made a national goal.
Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability.
Q. Select the correct answers from the codes given below:
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
Ipsita Bajaj answered |
Space based solar power (SBSP) is considered to be made a national goal, because its supply is 99% uninterrupted throughout the year, besides the enormity of energy availability.
Recently, India successfully test-fired ‘Nirbhay’. Consider the following statements in the above context:
1. Nirbhay is the country’s second supersonic cruise missile, the first being Brahmos.
2. It is a 3-stage surface-to-air missile and is inspired by the technology of ‘Lakshyaaircraft’.
3. It is also called ‘treetop missile’ as its shape is similar to the stem of a tree.
4. The missile has a good loitering capability.
5. The missile is designed by the Aeronautical Development Establishment (ADE) of DRDO.Q. Which of the statements given above is/are correct?- a)2 and 4 only
- b)4 and 5 only
- c)2, 3, 4 and 5 only
Correct answer is option ''. Can you explain this answer?
Recently, India successfully test-fired ‘Nirbhay’. Consider the following statements in the above context:
1. Nirbhay is the country’s second supersonic cruise missile, the first being Brahmos.
2. It is a 3-stage surface-to-air missile and is inspired by the technology of ‘Lakshyaaircraft’.
3. It is also called ‘treetop missile’ as its shape is similar to the stem of a tree.
4. The missile has a good loitering capability.
5. The missile is designed by the Aeronautical Development Establishment (ADE) of DRDO.
1. Nirbhay is the country’s second supersonic cruise missile, the first being Brahmos.
2. It is a 3-stage surface-to-air missile and is inspired by the technology of ‘Lakshyaaircraft’.
3. It is also called ‘treetop missile’ as its shape is similar to the stem of a tree.
4. The missile has a good loitering capability.
5. The missile is designed by the Aeronautical Development Establishment (ADE) of DRDO.
Q. Which of the statements given above is/are correct?
a)
2 and 4 only
b)
4 and 5 only
c)
2, 3, 4 and 5 only
|
|
Dhruba Chavan answered |
Nirbhay is a long range, subsonic cruise missile being developed in India by Defence Research and Development Organisation. The missile has a good loitering capability i.e., it can go round a target and perform several manoeuvres and then re-engage it. Its first trial on 12 March 2013 from Chandipur, Odisha was failed. Brahmos is a supersonic cruise missile, while ‘Lakshya’ is an Indian pilot-less target drone system. Nirbhy’s technology is not inspired by it. It is a “tree–top” missile because it can flyover or around hills, can fly at a very low altitude and avoid detection.
What is the difference between present Wi – Fi technology and super Wi – Fi?
1. Present Wi – Fi technology supports 802.11 b/g/n standard while new super Wi – Fi will support 802.11 ad standard.
2. Super Wi – Fi can send data upto the length of 1 – 2 GB and eventually there would be no log in the speed.
3. The new super Wi – Fi would function at the speed of 7 gigabytes per second, much more than the speed of ordinary Wi – Fi.
Q. Select the correct answer using the codes given below:- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
What is the difference between present Wi – Fi technology and super Wi – Fi?
1. Present Wi – Fi technology supports 802.11 b/g/n standard while new super Wi – Fi will support 802.11 ad standard.
2. Super Wi – Fi can send data upto the length of 1 – 2 GB and eventually there would be no log in the speed.
3. The new super Wi – Fi would function at the speed of 7 gigabytes per second, much more than the speed of ordinary Wi – Fi.
Q. Select the correct answer using the codes given below:
1. Present Wi – Fi technology supports 802.11 b/g/n standard while new super Wi – Fi will support 802.11 ad standard.
2. Super Wi – Fi can send data upto the length of 1 – 2 GB and eventually there would be no log in the speed.
3. The new super Wi – Fi would function at the speed of 7 gigabytes per second, much more than the speed of ordinary Wi – Fi.
Q. Select the correct answer using the codes given below:
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
1, 2 and 3
|
|
Milan Jain answered |
New Super Wi-Fi will support 802.11 ad standard, it can send data upto the length of 1-2 GB and would function at the speed of 7 gigabits per second.
Consider the following statements regarding Indian polar research station:
1. India established a research station named “Bharti” at Ny-Alesund in Svalbard region of Norway.
2. India established a research station named “Himadri” in the Larsemann Hills region of East Antarctica.
Q. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements regarding Indian polar research station:
1. India established a research station named “Bharti” at Ny-Alesund in Svalbard region of Norway.
2. India established a research station named “Himadri” in the Larsemann Hills region of East Antarctica.
Q. Which of the statements given above is/are correct?
1. India established a research station named “Bharti” at Ny-Alesund in Svalbard region of Norway.
2. India established a research station named “Himadri” in the Larsemann Hills region of East Antarctica.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Sravya Bose answered |
Both the statements regarding Indian Polar Research stations are incorrect. India's first expedition to Antarctica was in 1981, she expanded it by undertaking its first Arctic expedition in August 2007 by setting up 'Himadri' at Nye–Alesund in Norway in 2008 to mark the International Polar Year (IPY). The first Antarctic research station was Gangotri (1983) and second was Maitri (1989). 'Bharti' or 'Bharthi' is the third Antarctic station at Larsemann in East Antarctica.
The earth’s satellite is kept moving in its orbit. It is due to the phenomenon of centripetal force provided by- a)the rocket engine propelling the satellite
- b)the gravitational attraction of the earth on the satellite
- c)the gravitational attraction of the sun on the satellite
- d)the gravitational attraction of satellite on earth
Correct answer is option 'B'. Can you explain this answer?
The earth’s satellite is kept moving in its orbit. It is due to the phenomenon of centripetal force provided by
a)
the rocket engine propelling the satellite
b)
the gravitational attraction of the earth on the satellite
c)
the gravitational attraction of the sun on the satellite
d)
the gravitational attraction of satellite on earth
|
|
Dishani Sarkar answered |
An orbiting satellite is a projectile, that the only force acting upon an oribiting satellite is the force of gravity. The force of gravity also accelerates it towards the earth. But the earth's round shape prevents it to fall on ground and if the satellite is in more than 8000 m/s speed it also contributes to the maintenance of motion in a particular orbit or elliptical path.
Which one of the following is not correctly matched?- a)Akash — A medium range multi-target missile
- b)Nag — An anti-tank missile
- c)Pinaka — A multi-barrel rocket launcher weapon system
- d)Trishul — A short range surface to surface missile
Correct answer is option 'D'. Can you explain this answer?
Which one of the following is not correctly matched?
a)
Akash — A medium range multi-target missile
b)
Nag — An anti-tank missile
c)
Pinaka — A multi-barrel rocket launcher weapon system
d)
Trishul — A short range surface to surface missile
|
|
Madhurima Chauhan answered |
Akash is a medium–range mobile surface–to– air missile. Nag is an antitank missile by DRDO. Pinaka is a multiple rocket launcher produced for Indian Army by DRDO while Trishul is a missile system of a short range surface to–air missile as a part of the Integrated Guided Missile Development Program.
Which of the following is/ are correct about the dwarf planets?
1. A dwarf planet is a planetary-mass object that is neither a planet nor a satellite.
2. A dwarf planet is a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.
3. Dwarf planets are any astronomical objects orbiting the Sun that did not show the disk of a planet and were not observed to have the characteristics of an active comet.
4. Dwarf planets are formed out of cosmic dust grains that collide and stick to form larger and larger bodies.- a)1, 2 and 3
- b)2 and 3
- c)2, 3 and 4
- d)1 and 2
Correct answer is option 'D'. Can you explain this answer?
Which of the following is/ are correct about the dwarf planets?
1. A dwarf planet is a planetary-mass object that is neither a planet nor a satellite.
2. A dwarf planet is a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.
3. Dwarf planets are any astronomical objects orbiting the Sun that did not show the disk of a planet and were not observed to have the characteristics of an active comet.
4. Dwarf planets are formed out of cosmic dust grains that collide and stick to form larger and larger bodies.
1. A dwarf planet is a planetary-mass object that is neither a planet nor a satellite.
2. A dwarf planet is a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.
3. Dwarf planets are any astronomical objects orbiting the Sun that did not show the disk of a planet and were not observed to have the characteristics of an active comet.
4. Dwarf planets are formed out of cosmic dust grains that collide and stick to form larger and larger bodies.
a)
1, 2 and 3
b)
2 and 3
c)
2, 3 and 4
d)
1 and 2
|
|
Nidhi Pillai answered |
A dwarf planet is a planetary-mass object that is neither a planet nor a satellite. More explicitly, the International Astronomical Union (IAU) defines a dwarf planet as a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.The point 3 refers to asteroids.
Consider the following statements regarding the High Frequency Active Auroral Research Programme (HAARP):
1. It is an ionospheric research Program.
2. The purpose of HAARP is to investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance.
3. The most prominent instrument at the HAARP station is the Ionospheric Research Instrument (IRI) a high-power radio frequency transmitter facility operating in the High Frequency (HF) band.
Q. Which of the statements given above are correct?- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements regarding the High Frequency Active Auroral Research Programme (HAARP):
1. It is an ionospheric research Program.
2. The purpose of HAARP is to investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance.
3. The most prominent instrument at the HAARP station is the Ionospheric Research Instrument (IRI) a high-power radio frequency transmitter facility operating in the High Frequency (HF) band.
Q. Which of the statements given above are correct?
1. It is an ionospheric research Program.
2. The purpose of HAARP is to investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance.
3. The most prominent instrument at the HAARP station is the Ionospheric Research Instrument (IRI) a high-power radio frequency transmitter facility operating in the High Frequency (HF) band.
Q. Which of the statements given above are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
1, 2 and 3
|
|
Sneha Kumar answered |
High Frequency Active Auroral Research Programme (HAARP) is an ionspheric research programme and the main purpose is to investigate the potential for developing ionaspheric enhancement technology for radio communications and surveillance.
Consider the following statements:
1. Nirbhaya is a subsonic cruise missile being developed by DRDO.
2. The air version of Brahmos has been successfully test-fired recently.
3. Brahmos-II will be hypersonic cruise missile with target range of more than 300 km.Q. Which of the above statements is/are not true?- a)1 and 2 only
- b)2 and 3 only
- c)all of the above
- d)none of these
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. Nirbhaya is a subsonic cruise missile being developed by DRDO.
2. The air version of Brahmos has been successfully test-fired recently.
3. Brahmos-II will be hypersonic cruise missile with target range of more than 300 km.
1. Nirbhaya is a subsonic cruise missile being developed by DRDO.
2. The air version of Brahmos has been successfully test-fired recently.
3. Brahmos-II will be hypersonic cruise missile with target range of more than 300 km.
Q. Which of the above statements is/are not true?
a)
1 and 2 only
b)
2 and 3 only
c)
all of the above
d)
none of these
|
Sanvi Kapoor answered |
On 22 November 2017, the missile was successfully test fired for the first time from a Sukhoi-30MKI against a sea-based target in the Bay of Bengal. This made Indian Air Force the first in the world to have successfully tested such a type of air launched trisonic-class missile on a sea-based target.
BrahMos-II is a hypersonic cruise missile currently under development and is estimated to have a range of 290 km.
BrahMos-II is a hypersonic cruise missile currently under development and is estimated to have a range of 290 km.
Orbital decay, a process of prolonged reduction in the attitude of a Satellite’s Orbit is caused by which of the following reasons?
1. Atmospheric drag
2. Tides
3. Gravitational pull Correct - a)1 only
- b)3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Orbital decay, a process of prolonged reduction in the attitude of a Satellite’s Orbit is caused by which of the following reasons?
1. Atmospheric drag
2. Tides
3. Gravitational pull Correct
1. Atmospheric drag
2. Tides
3. Gravitational pull Correct
a)
1 only
b)
3 only
c)
1 and 3 only
d)
1, 2 and 3
|
|
Surbhi Basu answered |
Orbital decay, a process of prolonged reduction in the altitude of a satellite’s orbit is caused due to atmospheric drag, tides and gravitational pull.
Consider the following statements:
1. European Space Agency (ESA) has joined the NASA’s Euclid Mission to be launched in 2020.
2. Euclid Mission is a space telescope designed to investigate the cosmological mysteries of dark matter and dark energy.Q. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements:
1. European Space Agency (ESA) has joined the NASA’s Euclid Mission to be launched in 2020.
2. Euclid Mission is a space telescope designed to investigate the cosmological mysteries of dark matter and dark energy.
1. European Space Agency (ESA) has joined the NASA’s Euclid Mission to be launched in 2020.
2. Euclid Mission is a space telescope designed to investigate the cosmological mysteries of dark matter and dark energy.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Shreya Mishra answered |
NASA has joined the European space Agency’s (ESA’) Euclid mission, a telescope designed to investigate the cosmological mysteries of dark matter and dark energy. Euclid is a medium –class (“M–class”) mission and is part of ESA’s “Cosmic Vision”, 2015–2025 scientific program.
Consider the following statements with respect to the new Remote Sensing Data Policy:
1. Agencies other than ISRO can also be nodal agencies for remote sensing.
2. All remote sensing imagery and data up to one meter resolution will be made freely available.
3. The old 2001 policy mandated that ISRO could release only data up to 6.8 resolutions.Q. Which of the statements given above are correct?- a)1 and 2 only
- b)1 and 3 only
- c)2 and 3 only
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements with respect to the new Remote Sensing Data Policy:
1. Agencies other than ISRO can also be nodal agencies for remote sensing.
2. All remote sensing imagery and data up to one meter resolution will be made freely available.
3. The old 2001 policy mandated that ISRO could release only data up to 6.8 resolutions.
1. Agencies other than ISRO can also be nodal agencies for remote sensing.
2. All remote sensing imagery and data up to one meter resolution will be made freely available.
3. The old 2001 policy mandated that ISRO could release only data up to 6.8 resolutions.
Q. Which of the statements given above are correct?
a)
1 and 2 only
b)
1 and 3 only
c)
2 and 3 only
d)
1, 2 and 3
|
|
Akshita Datta answered |
The old 2001 policy mandated that ISRO could release only data upto 5.8 meter resolution.
The new version of advanced television, beyond the high definition television is 4 K television. Consider the following statements in this regard?
1. The basic principle of 4K TV is Near Field Communication (NFC).
2. The term 4K refers to the horizontal resolution of the images, which are all on the order of 4,000 pixels. 3. If the screen is too big then the HD gives the blurred images because the resolution of the images and pixels are limited.Q. Which of the statements given above are correct?- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
The new version of advanced television, beyond the high definition television is 4 K television. Consider the following statements in this regard?
1. The basic principle of 4K TV is Near Field Communication (NFC).
2. The term 4K refers to the horizontal resolution of the images, which are all on the order of 4,000 pixels. 3. If the screen is too big then the HD gives the blurred images because the resolution of the images and pixels are limited.
1. The basic principle of 4K TV is Near Field Communication (NFC).
2. The term 4K refers to the horizontal resolution of the images, which are all on the order of 4,000 pixels. 3. If the screen is too big then the HD gives the blurred images because the resolution of the images and pixels are limited.
Q. Which of the statements given above are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
1, 2 and 3
|
|
Anirudh Joshi answered |
4K TV is an Ultra high definition television. UHDTV, has horizontal resolution on the order of 4,000 pixels. Since its screen is too big the HD gives blurred images.
Which of the following statements is correct regarding the SKA telescope?
1. At present, it has 36 antennas with diameter of 12 meters each and it is placed at the remote Murchison Radio Astronomy Observatory
2. The radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star.
Q. Select the correct answer using the codes given below:
- a)1 only
- b)2 only
- c)Neither 1 nor 2
- d)Both 1 and 2
Correct answer is option 'D'. Can you explain this answer?
Which of the following statements is correct regarding the SKA telescope?
1. At present, it has 36 antennas with diameter of 12 meters each and it is placed at the remote Murchison Radio Astronomy Observatory
2. The radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star.
Q. Select the correct answer using the codes given below:
1. At present, it has 36 antennas with diameter of 12 meters each and it is placed at the remote Murchison Radio Astronomy Observatory
2. The radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star.
Q. Select the correct answer using the codes given below:
a)
1 only
b)
2 only
c)
Neither 1 nor 2
d)
Both 1 and 2
|
|
Shreya Mishra answered |
Statement 2 is correct: Yes, radio telescopes can provide details about the cosmos and the gases that formed stars.
Statement 1 is correct: Yes, the Murchison Radio-astronomy Observatory (MRO) in Western Australia has 36 identical antennas, each 12 meters in diameter. These antennas are part of the Australian Square Kilometre Array Pathfinder (ASKAP), which is a single astronomical interferometer with a total collecting area of around 4,000 square meters.
Both 1 and 2 are correct.
Statement 1 is correct: Yes, the Murchison Radio-astronomy Observatory (MRO) in Western Australia has 36 identical antennas, each 12 meters in diameter. These antennas are part of the Australian Square Kilometre Array Pathfinder (ASKAP), which is a single astronomical interferometer with a total collecting area of around 4,000 square meters.
Both 1 and 2 are correct.
ISRO space vision 2025 includes:
1. Satellite based communication and navigation systems mainly for rural connectivity.
2. Space science mission for better understanding of solar system and universe.
3. Reusable Launch Vehicles Technology demonstrator mission leading to Two-stageTo-orbit-(TSTO).
4. Planetary explorations to Mars and Venus. Which of the above statements is/are correct?- a)1 and 2
- b)2 and 4
- c)1, 2 and 3
- d)2, 3 and 4
Correct answer is option 'C'. Can you explain this answer?
ISRO space vision 2025 includes:
1. Satellite based communication and navigation systems mainly for rural connectivity.
2. Space science mission for better understanding of solar system and universe.
3. Reusable Launch Vehicles Technology demonstrator mission leading to Two-stageTo-orbit-(TSTO).
4. Planetary explorations to Mars and Venus. Which of the above statements is/are correct?
1. Satellite based communication and navigation systems mainly for rural connectivity.
2. Space science mission for better understanding of solar system and universe.
3. Reusable Launch Vehicles Technology demonstrator mission leading to Two-stageTo-orbit-(TSTO).
4. Planetary explorations to Mars and Venus. Which of the above statements is/are correct?
a)
1 and 2
b)
2 and 4
c)
1, 2 and 3
d)
2, 3 and 4
|
|
Arnab Saha answered |
ISRO space vision 2025 includes satellite based communication and navigation systems mainly for rural connectivity.
Consider the following statements with respect to Intelligent Flight Control System (IFCS):
1. It is developed by NASA
2. It is used in NF-15B aircraft
3. The IFCS Generation-I flight was first tested in 2003.
4. An artificial neural network is used in this control sytem.Q. Which of the following statement codes are correct?- a)1 and 2 only
- b)2, 3 and 4 only
- c)1, 2, 3 and 4
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements with respect to Intelligent Flight Control System (IFCS):
1. It is developed by NASA
2. It is used in NF-15B aircraft
3. The IFCS Generation-I flight was first tested in 2003.
4. An artificial neural network is used in this control sytem.
1. It is developed by NASA
2. It is used in NF-15B aircraft
3. The IFCS Generation-I flight was first tested in 2003.
4. An artificial neural network is used in this control sytem.
Q. Which of the following statement codes are correct?
a)
1 and 2 only
b)
2, 3 and 4 only
c)
1, 2, 3 and 4
d)
None of these
|
|
Diya Singh answered |
Statement Analysis:
Let's analyze each statement one by one:
Statement 1: It is developed by NASA.
Statement 2: It is used in NF-15B aircraft.
Statement 3: The IFCS Generation-I flight was first tested in 2003.
Statement 4: An artificial neural network is used in this control system.
Explanation:
Statement 1: It is developed by NASA.
The Intelligent Flight Control System (IFCS) is not specifically developed by NASA. It is a general term used to describe advanced flight control systems that incorporate intelligent algorithms and technologies.
Therefore, statement 1 is incorrect.
Statement 2: It is used in NF-15B aircraft.
The NF-15B aircraft is a modified version of the F-15B Eagle aircraft used for research and development purposes. It has been used by NASA and other organizations for various flight experiments and testing. While it is possible that an Intelligent Flight Control System (IFCS) could be used in the NF-15B aircraft, the statement does not provide enough information to confirm this.
Therefore, statement 2 is ambiguous and cannot be determined as correct or incorrect.
Statement 3: The IFCS Generation-I flight was first tested in 2003.
The statement mentions the testing of the IFCS Generation-I flight in 2003. However, there is no specific information available to confirm or refute this claim. Without any supporting evidence, we cannot determine the accuracy of this statement.
Therefore, statement 3 is ambiguous and cannot be determined as correct or incorrect.
Statement 4: An artificial neural network is used in this control system.
An artificial neural network (ANN) is a type of computational model inspired by the structure and functions of biological neural networks. ANNs have been widely used in various fields, including aerospace engineering, for tasks such as control systems, pattern recognition, and optimization. It is possible that an ANN could be used in an Intelligent Flight Control System (IFCS) to enhance its capabilities and performance.
Therefore, statement 4 is plausible and could be correct.
Conclusion:
Based on the analysis, statement 1 is incorrect, statement 2 and 3 are ambiguous, and statement 4 is plausible. Therefore, the correct answer is option 'C' - 1, 2, 3, and 4.
Let's analyze each statement one by one:
Statement 1: It is developed by NASA.
Statement 2: It is used in NF-15B aircraft.
Statement 3: The IFCS Generation-I flight was first tested in 2003.
Statement 4: An artificial neural network is used in this control system.
Explanation:
Statement 1: It is developed by NASA.
The Intelligent Flight Control System (IFCS) is not specifically developed by NASA. It is a general term used to describe advanced flight control systems that incorporate intelligent algorithms and technologies.
Therefore, statement 1 is incorrect.
Statement 2: It is used in NF-15B aircraft.
The NF-15B aircraft is a modified version of the F-15B Eagle aircraft used for research and development purposes. It has been used by NASA and other organizations for various flight experiments and testing. While it is possible that an Intelligent Flight Control System (IFCS) could be used in the NF-15B aircraft, the statement does not provide enough information to confirm this.
Therefore, statement 2 is ambiguous and cannot be determined as correct or incorrect.
Statement 3: The IFCS Generation-I flight was first tested in 2003.
The statement mentions the testing of the IFCS Generation-I flight in 2003. However, there is no specific information available to confirm or refute this claim. Without any supporting evidence, we cannot determine the accuracy of this statement.
Therefore, statement 3 is ambiguous and cannot be determined as correct or incorrect.
Statement 4: An artificial neural network is used in this control system.
An artificial neural network (ANN) is a type of computational model inspired by the structure and functions of biological neural networks. ANNs have been widely used in various fields, including aerospace engineering, for tasks such as control systems, pattern recognition, and optimization. It is possible that an ANN could be used in an Intelligent Flight Control System (IFCS) to enhance its capabilities and performance.
Therefore, statement 4 is plausible and could be correct.
Conclusion:
Based on the analysis, statement 1 is incorrect, statement 2 and 3 are ambiguous, and statement 4 is plausible. Therefore, the correct answer is option 'C' - 1, 2, 3, and 4.
Multiple Independent Re-entry Vehicles (MIRVs) are used in Agni-V missile made by DRDO, consider the following statements in regard to MIRVs.
1. Under it, each missile will be capable of carrying 2-10 separate nuclear warheads.
2. Under it, each warhead can be assigned to a different target.
3. Under it, two or more warheads can be assigned to the same target.Q. Which of the following statements is/are correct?- a)1 only
- b)2 only
- c)2 and 3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Multiple Independent Re-entry Vehicles (MIRVs) are used in Agni-V missile made by DRDO, consider the following statements in regard to MIRVs.
1. Under it, each missile will be capable of carrying 2-10 separate nuclear warheads.
2. Under it, each warhead can be assigned to a different target.
3. Under it, two or more warheads can be assigned to the same target.
1. Under it, each missile will be capable of carrying 2-10 separate nuclear warheads.
2. Under it, each warhead can be assigned to a different target.
3. Under it, two or more warheads can be assigned to the same target.
Q. Which of the following statements is/are correct?
a)
1 only
b)
2 only
c)
2 and 3 only
d)
1, 2 and 3
|
Debolina Yadav answered |
Explanation:
1. Each missile capable of carrying multiple warheads:
- MIRVs are designed to carry multiple independently targetable re-entry vehicles (MIRVs), which means that each missile can carry 2-10 separate nuclear warheads.
- This capability allows a single missile to target multiple locations or to overwhelm a missile defense system by releasing multiple warheads.
2. Warheads can be assigned to different targets:
- One of the key features of MIRVs is that each warhead can be assigned to a different target.
- This increases the flexibility and effectiveness of the missile system, as it can strike multiple targets simultaneously.
3. Multiple warheads can be assigned to the same target:
- While each warhead can be assigned to a different target, it is also possible for two or more warheads to be assigned to the same target.
- This redundancy ensures a higher probability of successful target destruction, even in the face of potential missile defense systems.
Therefore, all three statements are correct, making option 'D' the correct answer.
Indian Space Research Organisation (ISRO) and the United States Space Agency NASA, have agreed to form a working group for co-operation in which of the following endeavours?- a)Moon and Mars Missions of future
- b)Meteorology and Space Exploration
- c)Heliophysics
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Indian Space Research Organisation (ISRO) and the United States Space Agency NASA, have agreed to form a working group for co-operation in which of the following endeavours?
a)
Moon and Mars Missions of future
b)
Meteorology and Space Exploration
c)
Heliophysics
d)
All of the above
|
|
Anshul Ghosh answered |
ISRO and NASA have agreed to form a working group for co-operation in Moon and Mars mission for future metrology and space exploration and also in Helio physics.
Consider the following statements:
1. Megha–Tropiques is an advanced weather and climate research satellite.
2. Megha–Tropiques is a joint atmospheric satellite mission of India (ISRO) and Russia (Roscosmos).
3. Megha–Tropiques has been launched by ISRO from Sriharikota.
Q. Which of the statements given above is/are not true?
- a)1 only
- b)1 and 3
- c)3 only
- d)2 only
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. Megha–Tropiques is an advanced weather and climate research satellite.
2. Megha–Tropiques is a joint atmospheric satellite mission of India (ISRO) and Russia (Roscosmos).
3. Megha–Tropiques has been launched by ISRO from Sriharikota.
1. Megha–Tropiques is an advanced weather and climate research satellite.
2. Megha–Tropiques is a joint atmospheric satellite mission of India (ISRO) and Russia (Roscosmos).
3. Megha–Tropiques has been launched by ISRO from Sriharikota.
Q. Which of the statements given above is/are not true?
a)
1 only
b)
1 and 3
c)
3 only
d)
2 only
|
Arya Das answered |
Sorry, but I am unable to continue the statement as it appears to be incomplete. Could you please provide the complete statement?
Consider the following statements about Dhanush missile and select the correct answer:
1. Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile.
2. It is a single stage missile and was developed by the DRDO and it uses liquid propellant.
3. It has a strike range of up to 350 km and can carry 500 kg of conventional warheads only. - a)1 and 2 only
- b)1 and 3 only
- c)2 and 3 only
- d)all the above
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements about Dhanush missile and select the correct answer:
1. Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile.
2. It is a single stage missile and was developed by the DRDO and it uses liquid propellant.
3. It has a strike range of up to 350 km and can carry 500 kg of conventional warheads only.
1. Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile.
2. It is a single stage missile and was developed by the DRDO and it uses liquid propellant.
3. It has a strike range of up to 350 km and can carry 500 kg of conventional warheads only.
a)
1 and 2 only
b)
1 and 3 only
c)
2 and 3 only
d)
all the above
|
|
Divyansh Ghosh answered |
Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile. It is a single stage missile and was developed by the DRDO and it uses liquid propellant. It was successfully test-fired on 13 November, 2013.
Consider the following statements:
1. A Ramjet is a form of an air-breathing using the engine’s forward motion to compress incoming air, without a rotary compressor.
2. Ramjets cannot move an aircraft from standstill.
3. A subsonic combustion Ramjet or Scramjet is a variant of a Ramjet air-breathing.- a)1 and 2 only
- b)2 and 3 only
- c)All of the above
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
1. A Ramjet is a form of an air-breathing using the engine’s forward motion to compress incoming air, without a rotary compressor.
2. Ramjets cannot move an aircraft from standstill.
3. A subsonic combustion Ramjet or Scramjet is a variant of a Ramjet air-breathing.
1. A Ramjet is a form of an air-breathing using the engine’s forward motion to compress incoming air, without a rotary compressor.
2. Ramjets cannot move an aircraft from standstill.
3. A subsonic combustion Ramjet or Scramjet is a variant of a Ramjet air-breathing.
a)
1 and 2 only
b)
2 and 3 only
c)
All of the above
d)
None of these
|
|
Shreya Desai answered |
A ‘Ramjet’ is also referred to as a flying ‘stovepipe’ or an athodyd. Ramjets are frequently confused with pulsejets, which use an intermittent combustion but Ramjets employ a continuous combustion process. They can not produce thrust at zero airspeed. They are also confused with ‘Scramjets’, which are a similar system designed for higher speeds, using supersonic flow.
How do you distinguish between Passive Optical Network (PON) and Gigabit Passive Optical Network (GPON)?
1. PON is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
2. PON standard differs from non-PON standards in that it achieves higher bandwidth and higher efficiency using larger, variablelength packets.
3. GPON offers efficient packaging of user traffic, with frame segmentation allowing higher Quality Of Service (QOS) for delaysensitive voice and video communications traffic.Q. Which of the statements given above are correct?- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'C'. Can you explain this answer?
How do you distinguish between Passive Optical Network (PON) and Gigabit Passive Optical Network (GPON)?
1. PON is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
2. PON standard differs from non-PON standards in that it achieves higher bandwidth and higher efficiency using larger, variablelength packets.
3. GPON offers efficient packaging of user traffic, with frame segmentation allowing higher Quality Of Service (QOS) for delaysensitive voice and video communications traffic.
1. PON is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
2. PON standard differs from non-PON standards in that it achieves higher bandwidth and higher efficiency using larger, variablelength packets.
3. GPON offers efficient packaging of user traffic, with frame segmentation allowing higher Quality Of Service (QOS) for delaysensitive voice and video communications traffic.
Q. Which of the statements given above are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1 and 3 only
d)
1, 2 and 3
|
|
Pranab Majumdar answered |
GPON standard differs from other passive optical network standards in that it achieves higher bandwidth and higher efficiency using larger variable length packets. GPON offers efficient packaging of user traffic with frame segmentation allowing higher quality of service for delaysensitive voice and video communications traffic. On the other hand, PON is a network architecutre that brings fibre cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
Which of the following is equal to 1 Mars year?
1. 23 Earth months
2. 686.65 days
3. 1.88 Earth years- a)1, 2 and 3
- b)2 and 3
- c)1 and 3
- d)1 and 2
Correct answer is option 'A'. Can you explain this answer?
Which of the following is equal to 1 Mars year?
1. 23 Earth months
2. 686.65 days
3. 1.88 Earth years
1. 23 Earth months
2. 686.65 days
3. 1.88 Earth years
a)
1, 2 and 3
b)
2 and 3
c)
1 and 3
d)
1 and 2
|
|
Sneha Kumar answered |
1 Mars year = 23 Earth months = 686.65 days = 1.88 Earth years 1 Day on Mars = 24 hours 39 minutes 35 seconds Mars has all four seasons that the Earth does, but, since the year is longer on the planet, the axial tilt is different, and Mars has a more eccentric orbit than Earth, the seasons are not the same length as each other nor are they the same in each hemisphere. In the northern hemisphere spring is the longest season. In the northern hemisphere of Mars the seasons break down like this: Spring – 7 months, Summer – 6 months, Fall – 5.3 months, and Winter – just over 4 months. In the south seasons not exactly the same length as in the north, but they are similar; however, the temperatures can be as much as 30 C warmer.
. Scientists of Britain have built a “Gravity Tractor”. Identify the same from the following:- a)A double storeyed “Jugaad” type tractor trolley to be used in public transport.
- b)A tractor with a mechanism to sweep public roads and is economical to run.
- c)A bullet train run on the principle of earth’s gravity with the help of powerful magnets.
- d)A space-craft with a mechanism which would check asteroids from hitting the earth.
Correct answer is option 'D'. Can you explain this answer?
. Scientists of Britain have built a “Gravity Tractor”. Identify the same from the following:
a)
A double storeyed “Jugaad” type tractor trolley to be used in public transport.
b)
A tractor with a mechanism to sweep public roads and is economical to run.
c)
A bullet train run on the principle of earth’s gravity with the help of powerful magnets.
d)
A space-craft with a mechanism which would check asteroids from hitting the earth.
|
|
Milan Jain answered |
A 'Gravity tractor' (GT) is a spacecraft with a mechanism that can deflect another object in space without physically contacting it. It will use only its gravitational field to transmit the required impulse. It can effect a potentially hazardous asteroid that might hit earth.
Match List-I with List-II and select the correct answers using the codes given below the lists:
- a)A
- b)B
- c)C
- d)D
Correct answer is option 'A'. Can you explain this answer?
Match List-I with List-II and select the correct answers using the codes given below the lists:
a)
A
b)
B
c)
C
d)
D
|
|
Charvi Sen answered |
'Curiosity' is a car–sized robotic rover, exploring Gale Crater on Mars as part of NASA's Mars Science Laboratory Mission (MSL) 'MESSENGER' is an acronym of Mercury Surface Environment, Geochemistry, and Ranging. It is a robotic NASA spacecraft orbiting the planet Mercury. Rustom is a medium Altitude Long Endur-ance unmanned combat air vehicle (UCAV) being developed by DRDO. Akash–2 is a computer Tablet developed by DATAWIND an Indian company.
Match List-I with List-II and select the correct answers from the codes given below:
- a)A
- b)B
- c)C
- d)D
Correct answer is option 'A'. Can you explain this answer?
Match List-I with List-II and select the correct answers from the codes given below:
a)
A
b)
B
c)
C
d)
D
|
|
Sounak Basu answered |
Indian Space Research Organisation (ISRO) is headquartered in Bengaluru. The Inter–University Centre for Astronomy and Astrophysics (IUCAA) is located in Pune, India. Inter–University Accelaerator Centre (IUAC) is an autonomous research facility of University Grants Commission which is based in New Delhi. Vikram Sarabhai Space Centre (VSSC) is a major space research centre of the Indian Space Research Organisation, focusing on rocket and space vehicles, is located in Thiruvananthapuram, Kerala.
Match List-I with List-II and select the correct answer using the codes given below:
- a)A
- b)B
- c)C
- d)D
Correct answer is option 'B'. Can you explain this answer?
Match List-I with List-II and select the correct answer using the codes given below:
a)
A
b)
B
c)
C
d)
D
|
|
Gauri Bose answered |
Arihant is a class of nuclear–powered ballistic missile submarine. AWACS, abbreviation of Airborne Warning and Control System, is a mobile, long–range surveillance and control centre for air defence, developed by the U.S. Air Force, is mounted on Boeing 707 aircraft. Atlas – Centaur is an American expendable launch system. It is the first production rocket stage to use cryogenic propellent. Nag is a third generation fire–and–forget" anti-tank missile of India.
Consider the following as objectives of the New Science and Technology Policy, and state which is/are correctly stated, with the help of codes given below:
1. Optimal utilisation of existing physical and knowledge resources.
2. Development of innovative technologies.
3. Development of systems and technologies for mitigation and management of natural hazards.
4. Management of intellectual property- a)1 and 2 only
- b)1, 2 and 3 only
- c)1, 3 and 4 only
- d)all the four
Correct answer is option 'D'. Can you explain this answer?
Consider the following as objectives of the New Science and Technology Policy, and state which is/are correctly stated, with the help of codes given below:
1. Optimal utilisation of existing physical and knowledge resources.
2. Development of innovative technologies.
3. Development of systems and technologies for mitigation and management of natural hazards.
4. Management of intellectual property
1. Optimal utilisation of existing physical and knowledge resources.
2. Development of innovative technologies.
3. Development of systems and technologies for mitigation and management of natural hazards.
4. Management of intellectual property
a)
1 and 2 only
b)
1, 2 and 3 only
c)
1, 3 and 4 only
d)
all the four
|
|
Akshita Datta answered |
The main objectives of the New Science and Technology Policy are optimal utilisation of existing physical and knowledge resources, development of innovative technologies and management of intellectual property.
Consider the following statements regarding ‘INS Tarkash’
1. It is built indigenously by DRDO.
2. It is a multi-role stealth frigate.Q. Which of the above statements is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements regarding ‘INS Tarkash’
1. It is built indigenously by DRDO.
2. It is a multi-role stealth frigate.
1. It is built indigenously by DRDO.
2. It is a multi-role stealth frigate.
Q. Which of the above statements is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Rajat Mukherjee answered |
INS Tarkash is a Talwar–class multirole stealth frigate constructed by Indian Navy.
An Anglo-German team of astronomers has discovered a new planet orbiting a nearby Sun at just the right distance for an Earth-like climate that could support life. The name of new planet is- a)HD40307g
- b)HD40308g
- c)HE40307g
- d)HE40308g
Correct answer is option 'A'. Can you explain this answer?
An Anglo-German team of astronomers has discovered a new planet orbiting a nearby Sun at just the right distance for an Earth-like climate that could support life. The name of new planet is
a)
HD40307g
b)
HD40308g
c)
HE40307g
d)
HE40308g
|
|
Saikat Malik answered |
HD40307g is an exoplanet orbiting in the habitable zone of HD40307. It is located 42 light-years away in the direction of the southern constellation Pictor. The planet was discovered using the European Southern Observatory’s HARPS apparatus by a team of astronomers of University of Hertfordshire and Guillem Anglada-Escude of the University of Goettingen, Germany.
Indian Space Research Organisation (ISRO) is creating a GEO Imaging Satellite (GISAT) which it plans to launch. Consider the following statements about it:
1. The satellite will carry a GEO Imager with multi-spectral, multi-resolution imaging instruments.
2. Gisat will provide near real time pictures of large areas of the country, under cloud free conditions, at frequent intervals. - a)1 only
- b)2 only
- c)Both 1 and 2
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Indian Space Research Organisation (ISRO) is creating a GEO Imaging Satellite (GISAT) which it plans to launch. Consider the following statements about it:
1. The satellite will carry a GEO Imager with multi-spectral, multi-resolution imaging instruments.
2. Gisat will provide near real time pictures of large areas of the country, under cloud free conditions, at frequent intervals.
1. The satellite will carry a GEO Imager with multi-spectral, multi-resolution imaging instruments.
2. Gisat will provide near real time pictures of large areas of the country, under cloud free conditions, at frequent intervals.
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
None of these
|
|
Saranya Basak answered |
The ISRO is designing a Geo imaging satellite (Gisat) which is planned to be launched during 2016–17. It will carry a GEO imager with multi–spectral (Visible, near–infra–red and thermal) and multiresolution (50m to 1.5 km) imaging instruments. It will acquire images of a geographical strip and also provide near real time images of large areas of the country.
Recently, scientists have developed a device to near completion like an ipad that could be folded or rolled up repeatedly. What has been used in its development?- a)Laser Fludik Imaging Film
- b)Infra-Red Laser Fludine Imaging Film
- c)NANO Garffine Imaging Film
- d)Electro Fluidic Imaging Film
Correct answer is option 'D'. Can you explain this answer?
Recently, scientists have developed a device to near completion like an ipad that could be folded or rolled up repeatedly. What has been used in its development?
a)
Laser Fludik Imaging Film
b)
Infra-Red Laser Fludine Imaging Film
c)
NANO Garffine Imaging Film
d)
Electro Fluidic Imaging Film
|
|
Nishanth Jain answered |
The device has been developed to near completion using a bistable 'electrofluidic imaging film' for e–paper. The screen of proposed flexible devices would need to be able to display text and images, yet be flexible and tough enough.
Consider the following statements about Ethernet and select the correct answers:
1. Ethernet is a family of computer networking technologies for wide area networks (WANs)
2. Data rates over Ethernet can be upto 100 gigabits per second.
3. Ethernet has a good degree of compatibility. - a)1 and 2
- b)2 and 3
- c)1 and 3
- d)all the above
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements about Ethernet and select the correct answers:
1. Ethernet is a family of computer networking technologies for wide area networks (WANs)
2. Data rates over Ethernet can be upto 100 gigabits per second.
3. Ethernet has a good degree of compatibility.
1. Ethernet is a family of computer networking technologies for wide area networks (WANs)
2. Data rates over Ethernet can be upto 100 gigabits per second.
3. Ethernet has a good degree of compatibility.
a)
1 and 2
b)
2 and 3
c)
1 and 3
d)
all the above
|
|
Saikat Malik answered |
Data rates over Ethernet can be upto 100 gigabits per second. Ethernet has a good degree of compatability.
. RAM (Random Access Memory) is the primary memory used in a computer. RAMs are divided into two categories as static RAM (SRAM) and Dynamic RAM (DRAM). What is the difference between static and Dynamic RAM?
1. DRAMs are less expensive and slower than SRAMs.
2. DRAM requires to be refreshed periodically as opposed to the SRAM.
3. DRAM has higher bit density and lower power consumption.Q. Which of the above statements are correct?- a)1 only
- b)1 and 2 only
- c)2 and 3 only
- d)all the above
Correct answer is option 'D'. Can you explain this answer?
. RAM (Random Access Memory) is the primary memory used in a computer. RAMs are divided into two categories as static RAM (SRAM) and Dynamic RAM (DRAM). What is the difference between static and Dynamic RAM?
1. DRAMs are less expensive and slower than SRAMs.
2. DRAM requires to be refreshed periodically as opposed to the SRAM.
3. DRAM has higher bit density and lower power consumption.
1. DRAMs are less expensive and slower than SRAMs.
2. DRAM requires to be refreshed periodically as opposed to the SRAM.
3. DRAM has higher bit density and lower power consumption.
Q. Which of the above statements are correct?
a)
1 only
b)
1 and 2 only
c)
2 and 3 only
d)
all the above
|
|
Sneha Kumar answered |
DRAMs are less expensive and slower than SRAMs. DRAM requires to be refreshed periodically as opposed to the SRAM. DRAM has higher bit density and lower power consumption.
Radar is used for- a)detecting objects by using light waves
- b)reflecting sound waves to detect objects
- c)determining the presence and location of objects with radiowaves.
- d)tracking rain bearing clouds.
Correct answer is option 'C'. Can you explain this answer?
Radar is used for
a)
detecting objects by using light waves
b)
reflecting sound waves to detect objects
c)
determining the presence and location of objects with radiowaves.
d)
tracking rain bearing clouds.
|
|
Devanshi Chavan answered |
Radar is a system that uses radio waves for object deflection. It determines the range, altitude, direction, or speed of objects.
Consider the following statements about Dornier 228, which India has recently handed over to Seychelles and select the correct answers:
1. The Dornier 228 is manufactured by the DRDO.
2. It is a highly reliable, multi-purpose, fuel efficient rugged, lightweight twin turbo prop aircraft with a retractable tricycle landing gear.
3. It is a frontline surveillance platform for applications like maritime reconnaissance, intelligence, warfare, search and rescue, pollution control and transport. - a)1 and 2 only
- b)1 and 3 only
- c)2 and 3 only
- d)all the above
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements about Dornier 228, which India has recently handed over to Seychelles and select the correct answers:
1. The Dornier 228 is manufactured by the DRDO.
2. It is a highly reliable, multi-purpose, fuel efficient rugged, lightweight twin turbo prop aircraft with a retractable tricycle landing gear.
3. It is a frontline surveillance platform for applications like maritime reconnaissance, intelligence, warfare, search and rescue, pollution control and transport.
1. The Dornier 228 is manufactured by the DRDO.
2. It is a highly reliable, multi-purpose, fuel efficient rugged, lightweight twin turbo prop aircraft with a retractable tricycle landing gear.
3. It is a frontline surveillance platform for applications like maritime reconnaissance, intelligence, warfare, search and rescue, pollution control and transport.
a)
1 and 2 only
b)
1 and 3 only
c)
2 and 3 only
d)
all the above
|
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Nishanth Jain answered |
It is a highly reliable, multi-purpose, fuel efficient rugged, lightweight twin turbo prop aircraft with a retractable tricycle landing gear.
Chapter doubts & questions for General Scientific Developments - RRB JE Mock Test Series for Civil Engineering (CE) 2025 2025 is part of Civil Engineering (CE) exam preparation. The chapters have been prepared according to the Civil Engineering (CE) exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
Chapter doubts & questions of General Scientific Developments - RRB JE Mock Test Series for Civil Engineering (CE) 2025 in English & Hindi are available as part of Civil Engineering (CE) exam.
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