P,Q,R and S are working on a project. Q can finish the task in 25 days, working alone for 12 hours a day. R can finish the task in 50 days, working along for 12 hours per day. Q worked 12 hours a day but took sick leave in the beginning for two days. R worked 18 hours a day on all days. What is the ratio of work done by Q and R after 7 days from the start of the project?

- a)10:11
- b)11:10
- c)20:21
- d)21:20

Correct answer is option 'C'. Can you explain this answer?

Rajvati answered • 2 hours ago

Pushplata asked • 25 minutes ago

In a disc-type axial clutch, the frictional contact takes place within an annular region with outer and inner diameters 250 mm and 50 mm, respectively. An axial force F_{1} is needed to transmit a torque by a new clutch. However, to transmit the same torque, one needs an axial force F_{2} when the clutch wears out. If contact pressure remains uniform during operation of a new clutch while the wear is assumed to be uniform for an old clutch and the coefficient of friction does not change, then the ratio F_{1}/F_{2} is_________ (round off to 2 decimal places).

Correct answer is '0.871'. Can you explain this answer?

A pin jointed uniform rigid rod of weight W and Length L is supported horizontally by an external force F as shown in the figure below. The force F is suddenly removed. At the instant of force removal, the magnitude of vertical reaction developed at the support is

- a)zero
- b)W/4
- c)W/2
- d)W

Correct answer is option 'B'. Can you explain this answer?

Santro answered • 2 hours ago

If ‘relftaga’ means carefree, ‘otaga’ means careful and ‘fertaga’ means careless, which of the following could mean ‘aftercare’?

- a)zentaga
- b)tagafer
- c)tagazen
- d)relffer

Correct answer is option 'C'. Can you explain this answer?

Jaspal Kaur answered • 2 hours ago

From given codes

relftaga carefree

Otaga careful

Fertaga careless

From these codes, clearly known that “care” means “taga,” from given alternatives, option ‘C’ is correct.

relftaga carefree

Otaga careful

Fertaga careless

From these codes, clearly known that “care” means “taga,” from given alternatives, option ‘C’ is correct.

REETA KUMARI asked • 26 minutes ago

Two plates, each of 6 mm thickness, are to be butt-welded. Consider the following processes and select the correct sequence in increasing order of size of the heat affected zone

1. Arc welding

2. MIG welding

3. Laser beam welding

4. Submerged arc welding

1. Arc welding

2. MIG welding

3. Laser beam welding

4. Submerged arc welding

- a)3-4-2-1
- b)3-2-4-1
- c)4-3-2-1
- d)1-4-2-3

Correct answer is option 'B'. Can you explain this answer?

DEEPA KUMARI asked • 29 minutes ago

A stream of moist air (mass flow rate = 10.1 kg/s) with humidity ratio of mixes with a second stream of superheated water vapour flowing at 0.1 kg/s. Assuming proper and uniform mixing with no condensation, the humidity ratio of the final stream is ___________.

(**Important** - Enter only the numerical value in the answer)

Correct answer is '0.0197'. Can you explain this answer?

Priya Tanwar asked • 34 minutes ago

A helical gear with involute tooth profile has been machined with a disc-type form gear milling cutter. The helical gear has 30 teeth and a helix angle of 30^{o}. The module of the gear milling cutter is 2. The pitch circle diameter (in mm) of the helical gear is_________

(**Important** - Enter only the numerical value in the answer)

Correct answer is '69.28'. Can you explain this answer?

AHILYA ZANWAR asked • 1 hour ago

Maximize Z = 15X_{1} + 20X_{2}

Subject to

12X_{1} + 4X_{2} __>__ 36

12X_{1} - 6X_{2} __<__ 24

X_{1}, X_{2} __>__ 0

The above linear programming problem has

Subject to

12X

12X

X

The above linear programming problem has

- a)infeasible solution
- b)unbounded solution
- c)alternative optimum solutions
- d)degenerate solution

Correct answer is option 'B'. Can you explain this answer?

Geetanjali asked • 1 hour ago

A wet solid is dried over a long period of time by unsaturated air of nonzero constant relative humidity. The moisture content eventually attained by the solid is termed as the

- a)unbound moisture content
- b)bound moisture content
- c)free moisture content
- d)equilibrium moisture content

Correct answer is option 'D'. Can you explain this answer?

Ratni Devi asked • 2 hours ago

In the voltage regulator shown below, V_{t} is the unregulated at 15 V. Assume V_{BE} = 0.7 V and the base current is negligible for both the BJTs. If the regulated output V_{0} is 9 V, the value of R_{2} is _______ Ω.

Correct answer is '800'. Can you explain this answer?

Guddi Devi asked • 2 hours ago

Consider the diode circuit shown below. The diode, D, obeys the current-voltage characteristic where n > 1, V_{T} > 0, V_{D} is the voltage across the diode and I_{D} is the current through it. The circuit is biased so that voltage, V > 0 and current, l < 0. If you had to design this circuit to transfer maximum power from the current source (I_{1}) to a resistive load (not shown) at the output, what values R_{1} and R_{2} would you choose?

- a)Small R
_{1}and small R_{2}. - b)Large R
_{1}and large R_{2}. - c)Small R
_{1}and large R_{2}. - d)Large R
_{1}and small R_{2}.

Correct answer is option 'C'. Can you explain this answer?

Bala Devi asked • 3 hours ago

Let dw be the work done in a quasistatic reversible thermodynamic process. Which of the following statements about dw is correct?

- a)dw is a perfect differential if the process is isothermal.
- b)dw is a perfect differential if the process is adiabatic.
- c)dw is always a perfect differential.
- d)dw cannot be a perfect differential.

Correct answer is option 'B'. Can you explain this answer?

Hari Motto asked • 3 hours ago

“The dress _________ her so well that they all immediately _________ her on her appearance.”

The words that best fill the blanks in the above sentence are

The words that best fill the blanks in the above sentence are

- a)complemented, complemented
- b)complimented, complemented
- c)complimented, complimented
- d)complemented, complimented

Correct answer is option 'D'. Can you explain this answer?

Nishu Mahalwal asked • 3 hours ago

Steam at 100oC is condensing on a vertical steel plate. The condensate flow is laminar. The average Nusselt numbers are Nu1 and Nu2, when the plate temperatures are 10^{0 } and 55^{o }C.respectively. Assume the physical properties of the fluid and steel to remain constant within the temperature range of interest. Using Nusselt equations for film-type condensation, what is the value of the ratio Nu_{2}/Nu_{1 }?

- a)0.5
- b)0.84
- c)1.19
- d)1.41

Correct answer is option 'C'. Can you explain this answer?

Shiwan Gijai Deep asked • 3 hours ago

In order to achieve the same conversion under identical reaction conditions and feed flow rate

for a non-autocatalytic reaction of positive order, the volume of an ideal CSTR is

for a non-autocatalytic reaction of positive order, the volume of an ideal CSTR is

- a)always greater than that of an ideal PFR
- b)always smaller than that of an ideal PFR
- c)same as that of an ideal PFR
- d)smaller than that of an ideal PFR only for first order reaction

Correct answer is option 'A'. Can you explain this answer?

swati gupta asked • 4 hours ago

In a new species of moth, the genes for body colour (black, B, is dominant over grey, b), wing size

(normal wing, W, is dominant over vestigial, w) and eye colour (red, R, is dominant over white, r)

are linked. In this species, only one cross-over event has been observed between any two

homologous chromosomes during meiosis. In a cross between BB; ww and bb; WW, 5 % of the

progeny were black with normal wings. In a separate cross between RR; WW and rr; ww, 15 % of

the progeny were red-eyed with vestigial wings. In a third cross between BB; rr and bb; RR, 10 %

of the progeny were black-coloured with red eyes. Which among the following is the correct order

of these three genetic loci?

(normal wing, W, is dominant over vestigial, w) and eye colour (red, R, is dominant over white, r)

are linked. In this species, only one cross-over event has been observed between any two

homologous chromosomes during meiosis. In a cross between BB; ww and bb; WW, 5 % of the

progeny were black with normal wings. In a separate cross between RR; WW and rr; ww, 15 % of

the progeny were red-eyed with vestigial wings. In a third cross between BB; rr and bb; RR, 10 %

of the progeny were black-coloured with red eyes. Which among the following is the correct order

of these three genetic loci?

- a)Body colour – Eye colour – Wing size
- b)Eye colour – wing size – Body colour
- c)Wing size – Body colour – Eye colour
- d)Eye colour – Body colour – Wing size

Correct answer is option 'A'. Can you explain this answer?

Kritika Gupta asked • 4 hours ago

During photorespiration under low CO_{2} and high O_{2} levels, O_{2} reacts with ribulose 1,5- bisphosphate to yield

- a)One molecule each of 3-phosphoglycerate and 2-phosphoglycolate
- b)Two molecules of 3-phosphoglycerate
- c)Two molecules of 2-phosphoglycolate
- d)One molecule each of 3-phosphoglycerate and glyoxylate

Correct answer is option 'A'. Can you explain this answer?

Gurmeet Singh asked • 4 hours ago

An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached an Internet Service Provider (ISP) for this task. The ISP uses ClDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP's router using route aggregation.

Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?

I. 202.61.84.0/21

II. 202.61.104.0/21

III. 202.61.64.0/21

IV. 202.61.144.0/21

Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?

I. 202.61.84.0/21

II. 202.61.104.0/21

III. 202.61.64.0/21

IV. 202.61.144.0/21

- a)I and IV only
- b)III and IV only
- c)l and II only
- d)II and III only

Correct answer is option 'D'. Can you explain this answer?

Dharam Singh asked • 4 hours ago

The vapour pressure p (in mm of Hg) of a solid, at temperature T, is expressed by in p = 23 - 3863/T and that of its liquid phase by In p = 19 - 3063/T. The triple point (in Kelvin) o f the material is __________ .

Correct answer is '200'. Can you explain this answer?

PATEL VARUN asked • 4 hours ago

A single 50 Hz synchronous generator on droop control was delivering 100 MW power to a system. Due to increase in load, generator power had to be increased by 10 MW. as a result of which, system frequency dropped to 49.75 Hz. Further increase in load in the system resulted in a frequency of 49.25 Hz. At this condition, the power in MW supplied by the generator is ________ (rounded off to 2 decimal places).

Correct answer is '130'. Can you explain this answer?

GURIK SINGH asked • 5 hours ago

P and Q are considering to apply for job. The probability that p applies for job is 1/4. The probability that P applies for job given that Q applies for the job 1/2 and The probability that Q applies for job given that P applies for the job 1/3.The probability that P does not apply for job given that Q does not apply for the job .

- a)4/5
- b)5/6
- c)7/8
- d)11/12

Correct answer is option 'A'. Can you explain this answer?

MALA RUMALO asked • 5 hours ago

Two rollers of diameters D_{1} (in mm) and D_{2} (in mm) are used to measure the internal taper angle in the V-groove of a machined component. The heights H_{1} (in mm) and H_{2} (in mm) are measured by using a height gauge after inserting the rollers into the same V-groove as shown in the figure.

Which one of the following is the correct relationship to evaluate the angle α as shown in the figure?

Which one of the following is the correct relationship to evaluate the angle α as shown in the figure?

- a)
- b)
- c)
- d)

Correct answer is option 'B'. Can you explain this answer?

Shubhangi Kumar asked • 5 hours ago

The figure below shows an uncontrolled diode bridge rectifier supplied form a 220 V, 50 Hz 1-phase ac source. The load draws a constant current I_{o} = 14A. The conduction angle of the diode D_{1} in degrees is___________.

Correct answer is between '220,230'. Can you explain this answer?

Neha Lohia asked • 6 hours ago

Two magnetically uncoupled inductive coils have Q factors q_{1} and q_{2} at the chosen operating frequency. Their respective resistances are R_{1} and R_{2}. When connected in series, their effective Q factor at the same operating frequency is

- a)q
_{1}+q_{2} - b)(1/q
_{1})+(1/q_{2}) - c)(q
_{1}R1+q_{2}R_{2})/(R_{1}+R_{2)} - d)(q
_{1}R_{2}+q_{2}R1)/(R_{1}+R_{2)}

Correct answer is option 'C'. Can you explain this answer?

TEJASVI PALIYA asked • 6 hours ago

The procedure given below is required to find and replace certain characters inside an input

character string supplied in array A. The characters to be replaced are supplied in array oldc,

while their respective replacement characters are supplied in array newc. Array A has a fixed

length of five characters, while arrays oldc and newc contain three characters each. However, the

procedure is flawed

character string supplied in array A. The characters to be replaced are supplied in array oldc,

while their respective replacement characters are supplied in array newc. Array A has a fixed

length of five characters, while arrays oldc and newc contain three characters each. However, the

procedure is flawed

void find _ and _ replace (char *A, char *oldc, char * newc ) {

for (int i= 0; i <5; i++)

for (int j =0; j <3; j++)

if (A [i] ==oldc[ j]) A [i]= newc [j] ;

}

The procedure is tested with the following four test cases

(1) oldc = "abc", newc = "dab" (2) oldc = "cde", newc = "bcd"

(3) oldc = "bca", newc = "cda" (4) oldc = "abc", newc = "bac"

for (int i= 0; i <5; i++)

for (int j =0; j <3; j++)

if (A [i] ==oldc[ j]) A [i]= newc [j] ;

}

The procedure is tested with the following four test cases

(1) oldc = "abc", newc = "dab" (2) oldc = "cde", newc = "bcd"

(3) oldc = "bca", newc = "cda" (4) oldc = "abc", newc = "bac"

The tester now tests the program on all input strings of length five consisting of characters

‘a’, ‘b’, ‘c’, ‘d’ and ‘e’ with duplicates allowed. If the tester carries out this testing with the

four test cases given above, how many test cases will be able to capture the flaw?

‘a’, ‘b’, ‘c’, ‘d’ and ‘e’ with duplicates allowed. If the tester carries out this testing with the

four test cases given above, how many test cases will be able to capture the flaw?

HIMANISH MUKHERJEE asked • 6 hours ago

Which one of the following is the most appropriate logical formula to represent the statement:

“Gold and silver ornaments are precious”

The following notations are used:

G(x): x is a gold ornament

S(x): x is a silver ornament

P(x): x is precious

“Gold and silver ornaments are precious”

The following notations are used:

G(x): x is a gold ornament

S(x): x is a silver ornament

P(x): x is precious

- a)
- b)
- c)
- d)

Correct answer is option 'D'. Can you explain this answer?

LAKSHMI CHOUDHARY asked • 6 hours ago

The cross sections of two hollow bars made of the same material are concentric circles as shown in the figure. It is given that r_{3} > r_{1} and r_{4} > r_{2}, and that the areas of the cross-sections are the same. J_{1} and J_{2} are the torsional rigidities of the bars on the left and right, respectively. The ratio J_{2}/J_{1} is

- a)>1
- b)< 0.5
- c)= 1
- d)between 0.5 and 1

Correct answer is option 'A'. Can you explain this answer?

Nikita Jain asked • 6 hours ago

P, Q, and R are the decimal integers corresponding to the 4-bit binary number 1100 considered in signed magnitude, 1’s complement, and 2’s complement representations, respectively. The 6-bit 2’s complement representation of (P + Q + R) is

- a)111101
- b)110101
- c)110010
- d)111001

Correct answer is option 'B'. Can you explain this answer?

Nitin Kumar asked • 6 hours ago

A cricketer’s total run before the end of a senes is 750. After that he plays two more matches in the same series in which he scores 6 runs and his battmg average decreases by 2 runs. What is his batting average for the series

- a)32
- b)30
- c)28
- d)26

Correct answer is option 'C'. Can you explain this answer?

Tanishka Aggarwal asked • 6 hours ago

Two particles He^{+} and Li^{+} are projected in a circular orbit of same radius perpendicular to a given magnetic field

- a)velocity will be smaller of He
^{+}. - b)velocity will be smaller of Li
^{+}. - c)velocity of He
^{+}and Li^{+}will be equal under same magnetic field. - d)He
^{+}and Li^{+}particles can not move in circular orbit under magnetic field.

Correct answer is option 'A'. Can you explain this answer?

Dêvesh Mishra asked • 6 hours ago

A company records heights of all employees. Let X and Y denote the errors in the average height of

male and female employees respectively. Assume that X ~ N(0, 4) and Y ~ N(0, 9) and they are

independent. Then the distribution of Z = (X + Y)/2 is

male and female employees respectively. Assume that X ~ N(0, 4) and Y ~ N(0, 9) and they are

independent. Then the distribution of Z = (X + Y)/2 is

- a)N(0, 6.5)
- b)N(0, 3.25)
- c)N(0, 2)
- d)N(0, 1)

Correct answer is option 'A'. Can you explain this answer?

RAHUL MISHRA asked • 8 hours ago

Consider the following expression grammar G.

E -> E - T | T

T -> T + F | F

F -> (E) | id

T -> T + F | F

F -> (E) | id

- a)E -> E - T | T

T -> T + F | F

F -> (E) | id - b)E -> TE'

E' -> -TE' | ε

T -> T + F | F

F -> (E) | id - c)E -> TX

X -> -TX | ε

T -> FY

Y -> +FY | ε

F -> (E) | id - d)E -> TX | (TX)

X -> -TX | +TX | ε

T -> id

Correct answer is option 'C'. Can you explain this answer?

Shiwan Gijai Deep asked • 8 hours ago

The velocity of flow of water (density 1000 kg/m^{3}) in a horizontal pipe is measured using the PITOT tube shown below. The fluid in the U-tube manometer is mercury with a density of 13534 kg/m^{3}. Assume g = 9.81 m/s^{2}. If the height difference (h) is measured as 94.1 mm, the velocity of flow of water in m/s is _______.

(**Important** - Enter only the numerical value in the answer)

Correct answer is '4.81'. Can you explain this answer?

Shoarib Quershi asked • 8 hours ago

The pungency of mustard seeds is primarily due to secondary metabolites such as isothiocyanate and nitrile. The pungency is usually felt only when the seeds are crushed. This is because of

- a)The coat of the intact seeds blocks the pungent volatiles from being released
- b)The pungent chemicals are stored as inactive conjugates and compartmentalized from the

enzymes that convert them into active chemicals - c)the pungent chemicals are formed only after the reaction with atmospheric oxygen
- d)The pungent chemicals are formed only after the reaction with atmospheric carbondioxide

Correct answer is option 'B'. Can you explain this answer?

Ramesh asked • 8 hours ago

In the feedback network shown below, if the feedback factor k is increased, then the

- a)input impedance increases and output impedance decreases
- b)input impedance increases and output impedance also increases
- c)input impedance decreases and output impedance also decreases
- d)input impedance decreases and output impedance increases

Correct answer is option 'A'. Can you explain this answer?

SHAILJA YASH asked • 8 hours ago

In a class of 200 students, 125 students have taken Programming Language course, 85 students have taken Data Structures course, 65 students have taken Computer Organization course; 50 students have taken both Programming Language and Data Structures, 35 students have taken both Data Structures and Computer Organization; 30 students have taken both Data Structures and Computer Organization, 15 students have taken all the three courses. How many students have not taken any of the three courses?

- a)15
- b)20
- c)25
- d)30

Correct answer is option 'C'. Can you explain this answer?

Gurmail Kaur asked • 8 hours ago

Consider the following system of linear equation.

x_{1} + 2x_{2} = b_{1} ; 2x_{1} + 4x_{2} = b_{2} ; 3x_{1} + 7x_{2} = b_{3} ; 3x_{1} + 9x_{2} = b_{4}

Which one of the following conditions ensures that a solution exists for the above system?

x

Which one of the following conditions ensures that a solution exists for the above system?

- a)b
_{3}= 2b_{1}and 3 b_{1}- 6b_{3}+ b_{4}= 0 - b)b
_{2}= 2b_{1}and 3 b_{1}- 6b_{3}+ b_{4}= 0 - c)b
_{2}= 2b_{1}and 6b_{1}, - 3b_{3}+ b_{4}= 0 - d)b
_{3}= 2b_{1}and 3 b_{1}, - 3b_{3}+ b_{4 }= 0

Correct answer is option 'C'. Can you explain this answer?

SANSKAR ANAND asked • 8 hours ago

A steel part with surface area of 125 cm^{2} is to be chrome coaled through an electroplating process using chromium acid sulphate as an electrolyte. An increasing current is applied to the part according to the following current time relation:

I = 12 + 0.2t

where, I = current (A) and t = time (minutes). The part is submerged in the plating solution for a duration of 20 minutes for plating purpose. Assuming the cathode efficiency of chromium to be 15% and the plating constant of chromium acid sulphate to be 2.50 × 10–2 mm^{3}/A·s, the resulting coating thickness on the part surface is _________ μm (round off to one decimal place).

I = 12 + 0.2t

where, I = current (A) and t = time (minutes). The part is submerged in the plating solution for a duration of 20 minutes for plating purpose. Assuming the cathode efficiency of chromium to be 15% and the plating constant of chromium acid sulphate to be 2.50 × 10–2 mm

Correct answer is '5.0'. Can you explain this answer?

KARISHMA THAKUR asked • 9 hours ago

A rigid mass-less rod of length L is connected to a disc (pulley) of mass m and radius r = L/4 through a friction-less revolute joint. The other end of that rod is attached to a wall through a friction-less hinge. A spring of stiffness 2k is attached to the rod at its mid-span. An inextensible rope passes over half the disc periphery and is securely tied to a spring of stiffness k at point C as shown in the figure. There is no slip between the rope and the pulley. The system is in static equilibrium in the configuration shown in the figure and the rope is always taut.

Neglecting the influence of gravity, the natural frequency of the system for small amplitude vibration is

Neglecting the influence of gravity, the natural frequency of the system for small amplitude vibration is

POOJA DEVI asked • 9 hours ago

Consider three registers R1, R2, and R3 that store numbers in IEEE-754 single precision floating point format. Assume that R1 and R2 contain the values (in hexadecimal notation) 0x42200000 and 0xC1200000, respectively.

If R3 = R1/R2, what is the value stored in R3?

If R3 = R1/R2, what is the value stored in R3?

- a)0xC0800000
- b)0x40800000
- c)0x83400000
- d)0xC8500000

Correct answer is option 'A'. Can you explain this answer?

Deep Jain asked • 9 hours ago

Concentric spherical shells of radii 2m, 4m, and 8m carry uniform surface charge densities of 20

nC/m^{2}, –4 nC/m^{2} and ρs, respectively. The value of ρs (nC/m^{2}) required to ensure that the electric

flux density D = 0 at radius 10 m is –––––.

nC/m

flux density D = 0 at radius 10 m is –––––.

Correct answer is '0.25'. Can you explain this answer?

Aarti Singh asked • 9 hours ago

Let M be a Turing Machine has G = (g_{0}, g_{1}, q_{2}, q_{3}, q_{4}} a set of states, input alphabets {0, 1}. The tape alphabets are {0,1, B, X, V). The symbol B is used to represent end of input string. The final state is q_{4}. The transistions are as follows:

Which of the following is true about M?

Which of the following is true about M?

- a)M halts on L having 100 as substring
- b)M halts on L having 101 as substring
- c)M halts on L = 0
^{n}1^{n}, n ≥ 0 - d)M halts on L not having 1100 sbstring

Correct answer is option 'C'. Can you explain this answer?

VINOD RADHAKISHAN asked • 9 hours ago

A plastic sleeve of outer radius r_{o} = 1 mm covers a wire (radius r = 0.5 mm) carrying electric current. Thermal conductivity of the plastic is 0.15 W/m-K. The heat transfer coefficient on the outer surface of the sleeve exposed to air is 25 W/m^{2}-K. Due to the addition of the plastic cover, the heat transfer from the wire to the ambient will

- a)increase
- b)remain the same
- c)decrease
- d)be zero

Correct answer is option 'A'. Can you explain this answer?

Mridul Gupta asked • 9 hours ago

The limits of a shaft designated as 100h5 are 100.000 mm and 100.014 mm. Similarly, the limits of a shaft designated as 100h8 are 100.000 mm and 100.055 mm. If a shaft is designated as 100h6, the fundamental deviation (in μm) for the same is

- a)–22
- b)zero
- c)22
- d)24

Correct answer is option 'B'. Can you explain this answer?

MANDEEP KAUR asked • 9 hours ago

For spot welding of two steel sheets (base metal) each of 3 mm thickness, welding current of 10000 A is applied for 0.2s. The heat dissipated to the base metal is 1000 J. Assuming that the heat required for melting 1 mm^{3} volume of steel is 20 J and interfacial contact resistance between sheets is 0.000 2? , the volume (in mm^{3}) of weld nugget is _______

(**Important **- Enter only the numerical value in the answer)

Correct answer is between '140,160'. Can you explain this answer?

PALLVI NARESH asked • 9 hours ago

Suppose x_{1}(t) and x_{2}(t) have the Fourier transforms as shown below

Which one of the following statements is TRUE?

- a)x
_{1}(t) and x_{2}(t) are complex and x_{1}(t)x_{2}(t) is also complex with nonzero imaginary part - b)x
_{1}(t) and x_{2}(t) are real and x_{1}(t)x_{2}(t) is also real - c)x
_{1}(t) and x_{2}(t) are complex but x_{1}(t)x_{2}(t) is real - d)x
_{1}(t) and x_{2}(t) are imaginary but x_{1}(t)x_{2}(t) is real

Correct answer is option 'C'. Can you explain this answer?

Sunil Manjani asked • 9 hours ago

List-I

A. Resistance of the order of m?

B. Capacitance between Machine

Winding and Earth.

C. Inductance of Armature winding of d.c. Machine

D. To detect quality of the output

waveform of Inverter.

(Measuring Instrument)

1. Wein’s Bridge

2. Kelvin’s Double Bridge

3. Schering’s Bridge

4. Carey foster’s Bridge

5. Ander Son’s Bridge

- a)a
- b)b
- c)c
- d)d

Correct answer is option 'C'. Can you explain this answer?

Gargi Sharma asked • 10 hours ago

A closed-loop control system is stable if the Nyquist plot of the corresponding open-loop transfer

function

function

- a)encircles the s-plane point (–1 + j0) in the counterclockwise direction as many times as the number of right-half s-plane poles.
- b)encircles the s-plane point (0 – j1) in the clockwise direction as many times as the number of right-half s-plane poles.

- c)encircles the s-plane point (–1 +j0) in the counterclockwise direction as many times as the number of left-half s-plane poles.
- d)encircles the s-plane point (–1+j0) in the counterclockwise direction as many times as the number of right-half s-plane zeros.

Correct answer is option 'A'. Can you explain this answer?

POOJA DEVI asked • 10 hours ago

Let A and B be infinite alphabets and let # be a symbol outside both A and B. Let f be a total functional from A^{*} to B^{*} .We say f is computable if there exists a Turning machine M which given an input x in A^{*}, always halts with f(x) on its tape. Let L_{f} denotes the language {x#f(x)|x∈A^{*}}. Which of the following statements is true?

- a)f if computable if and only if L
_{f}is recursive. - b)f if computable if and only if L
_{f}is recursive enumerable. - c)if f is computable then L
_{f}is recursive, but not conversely. - d)if f is computable then L
_{f}is recursively enumerable, but not conversely.

Correct answer is option 'A'. Can you explain this answer?

Kailash Beniwal asked • 11 hours ago

Consider the radioactive transformation a → B →C with decay constant λ_{A} and λ_{B} for elements A and B . C is a stable element . Assume that at t = 0, N_{A} = N , N_{B} = 0 and N_{c} = 0 where N_{A}, N_{B}and N_{C} are the number of atoms of A, B and C respectively. Then which of the following is/are correct

- a)
- b)
- c)
- d)

Correct answer is option 'A,B,C'. Can you explain this answer?

Krithika A asked • 11 hours ago

A continuous-time sinusoid of frequency 33 Hz is multiplie with a periodic Dirac impulse train of

frequency 46 Hz. The resulting signal is passed through an ideal analog low-pass filter with a

cutoff frequency of 23Hz. The functional frequency (in Hz) of the output is _____.

frequency 46 Hz. The resulting signal is passed through an ideal analog low-pass filter with a

cutoff frequency of 23Hz. The functional frequency (in Hz) of the output is _____.

Correct answer is '13'. Can you explain this answer?

BHAWNA PREM asked • 11 hours ago

An athlete can play on several teams and each team needs atleast one player.

Based on the description above, what is the maximum cardnality between each instance of “Athelete” and “team”?

- a)1: 1
- b)m :1
- c)1: m
- d)m : n

Correct answer is option 'D'. Can you explain this answer?

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