HTET PRT Mock Test - 5 - HTET MCQ

Lying and stealing are common, but inappropriate, behaviors in school-aged children. While some severe forms of these behaviors can indicate a more serious psychological problem, most of the time it is simply a common behavior that will be outgrown.
During the school years, stealing may be a sign of a problem, but it may also be a result of peer pressure and the need for the child to fit in. It is important to look at the whole situation and address it accordingly.

Preference to one sex over the other is called gender bias. Here the school prefers girls for the competition, thereby reflecting gender bias.

For Vygotsky, although biological factors constitute the necessary pre-requisite for elementary processes to emerge, socio-cultural factors are indispensable for elementary natural processes to develop. He argues for the uniqueness of the social milieu and regards socio-cultural settings as the primary and determining factor in the development of higher forms of human mental activity such as voluntary attention, intentional memory, logical thought, planning, and problem solving.

Divergent thinking is a thought process or method used to generate creative ideas by exploring many possible solutions.

Questions are an aid in the learning process and hence questioning skill is one of the important teaching skills required to be developed to conduct a classroom session successfully by a teacher.

(कि) का इस्तेमाल करके मिश्रा वाक्य बना सकते है। 

सही उत्तर विहित है।

Key Points

• निषिद्ध का विलोम विहित है।
• निषिद्ध का अर्थ- जिसका निषेध किया गया हो
• विहित का अर्थ- उचित, मुनासिब।

अन्य विकल्प-

• कठोर का अर्थ होता है - कड़ा, सख़्त।
  • कठोर का विलोम कोमल
• विहित का अर्थ होता है - उचित।
  • विहित का विलोम- 'निषिद्ध
• आदृत का अर्थ होता है - सम्मानित।
  • आदृत का विलोम- निरादृत
• सिद्ध का विलोम असिद्ध

सभी शब्दों के अर्थों से हमें ज्ञात होता है कि निषिद्ध का विलोम शब्द विहित होता है।

Hence, Option B is correct.

If 12, 21, 72, 126 are in proportion, then:

In a proportion, the product of the first and fourth terms is equal to the product of the second and third terms.
So, let's check each option:
(i) 12×21=72×126 → This is not true.
(ii) 12×72=21×126 → This is not true.
(iii) 12×126=21×72 → This is true.
(iv) None of these → We already found a true statement in option (c).

Sum of decimal places = 7.
Since the last digit to the extreme right will be zero (since 5 x 4 = 20), so there will be 6 significant digits to the right of the decimal point.

The All four part of the the figure is identical. So after folding the 2 times of the figure, it will become figure like option C.

Hence, option A is correct.

The correct answer is Agroha.

• Maharaja Agrasen was a Vaish King of the Solar Dynasty who adopted Vanika Dharma for the benefit of his people.
  • Literally, Agrawal means the “Children of Agrasen” or the “People of Agroha”, a city in ancient Kuru Panchala, near Hisar in the Haryana region said to be founded by Maharaja Agrasen.

Key Points

• Agrasen was a great Indian king of the merchant city of Agroha.
  • He is a descendant of Kush, son of Lord Rama and was born in the 35th generation after Lord Rama.
  • He is credited with founding the kingdom of merchants named Agroha in northern India and is known for his compassion in refusing to kill animals in yagyas.

Additional Information

• History of Haryana:
  • The history of Haryana is very proud and it starts from the Vedic period.
  • This state is believed to be the birthplace of the mythological Bharata dynasty, after which the country got its name, Bharat.
  • Haryana has been discussed in our great epic Mahabharata. Before becoming the capital of India, it became a part of the history of India with the arrival of Muslims and the capital of India of Delhi and remained anonymous until the First War of Independence in 1857.
  • Their territories were either merged with the British territories or handed over to the rulers of Patiala, Nabha and Jind.
  • After the reorganization of Punjab on November 1, 1966, Haryana became a complete one.

The correct answer is Hisar.

Key Points

• Rajiv Gandhi Thermal Power Station is located at Khedar in the Hisar district of Haryana.
• It is a coal-based Power plant of the Haryana Power Generation Corporation Limited (HPGCL).
• The plant gets coal from the Mahanadi coalfield Odisha.
• It is the first mega power project of Haryana.

Required cloth = (2.5×25)m=62.50m.

• The triangle BOC is an isosceles triangle with sides OB and OC both being equal as they are the radii of the circle. Hence, the angle OBC = angle OCB = 30°.
• Hence, the third angle of the triangle BOC i.e. Angle BOC would be equal to 120°.
  ⇒ BOC = AOD = 120° 
• Also, in the isosceles triangle DOA: 
  Angle ODA = Angle DAO = x = 30°

Between 5 and 78:
First number = 6
Last number = 72

Hence, Option D is correct.

Since √2 and √5 both are irrational number therefore  is an irrational number.

As per question, we have,
p = ab² = a × b × b
q = a³b = a × a × a × b
So, their Least Common Multiple (LCM) = a³ × b²

Hydrological Cycle

• The process of circulation of water within the hydrosphere of Earth in different forms such as liquid, solid and gaseous states are called the Hydrological Cycle of water.
• It starts with the Evaporation of water from the surface of the water bodies and further, it includes Transpiration, Sublimation, Condensation and Precipitation.

Key Points

'Hydrological cycle' steps

• The first step of the water cycle is evaporation from water bodies means the part of the Hydrosphere.
• The second step of the water cycle is condensation, which takes place in the atmosphere.
• The third step of the water cycle is precipitation and runoff means the part of the lithosphere.
• The final step of the water cycle is in the Biosphere. 
• It is the zone where all the spheres interact and work together.
• It includes processes like water uptake and transpiration by plants.

​

Thus, in the 'Hydrological cycle' the order of the source in which they connected from each other is first Hydrosphere, second Atmosphere, third Lithosphere and fourth Biosphere.

Additional Information

Processes during a hydrological cycle:

​​Evaporation

• When waters convert from liquid to gas stage as it moves from the groundwater into the atmosphere, this phenomenon is called Evaporation.
• Mainly Solar radiation is the source of energy for evaporation. 

Transpiration

• When plant uptake of water at the roots, transport of water through plant tissues, and release of vapour by leaves is known as transpiration.

Condensation

• The Process of conversion of water vapour to liquid water droplets in the air is called Condensation.
• It is responsible for the formation of fog and clouds.

​Precipitation

• When the condensed water vapour falling to the surface of the Earth is known as Precipitation.
• It occurs in the form of rain, snow, and hail.
• It provides for the delivery of atmospheric water to the earth in the form of rain.

The Correct Answer is Option (3) i.e. Nitrogen Oxides.

• The two most common and hazardous oxides of nitrogen are nitric oxide and nitrogen dioxide.
• The oxides of nitrogen are the major pollutants of air pollution and global warming.
• Soil pollution refers to the contamination of the soil with anomalous concentrations of toxic substances.
• The different types of pollutants that are found in contaminated soil are given below :
  • Hydrocarbons - 42%
  • Heavy Metals - 31%
  • Mineral Oil - 20%
  • Other - 7%

Waste management in India is done under Environment Protection Act, 1986. Violations of the law can result in imprisonment upto 5 years and/or fine up to Rs. 1,00,000.

Additional Information

Environment Protection Act, 1986

• The environmental (Protection) Act, 1986 along with the Environment Protection Rules 1986 amended in 1999.
• The Environmental Protection Act (EPA) of 1986 is umbrella legislation with wide legislative coverage.
• It gives wide powers to the central government to take all such measures as it deems necessary or expedient for the purpose of protecting and improving the quality of the environment. Such measures include laying down standards for environmental quality, restricting areas of industrial operations, laying down procedures for handling hazardous substances, etc.
• The central government can close down offending industries and restrict the setting up of new industries at environmentally non-compatible sites.
• The Environment Rules of 1986 lay down procedures for the setting of emission and discharge standards.
• This Act empowers the Union Government to take direct action against defaulters.
• A host of notifications have been enacted under the EPA, such as those on Environmental Impact Assessment and Coastal Regulation Zones. 

The correct answer is (a) - (ii), (b) - (iv), (c) -(i), (d) - (iii).

Key Points

Troposphere:  

• It is the lowest layer of the atmosphere - in which we live.
• It contains most of our weather - clouds, rain, snow.
• The lowest part of the Troposphere is called the boundary layer and the topmost part is called the tropopause.​

Stratosphere:

• This layer extends upwards from the tropopause to about 50 km.
• It contains much of the ozone in the atmosphere.
• The temperature in Stratosphere is highest over the summer pole and lowest over the winter pole.

Mesosphere:

• Above the stratosphere is the mesosphere. It extends upward to a height of about 85 km above our planet. Most meteors burn up in the mesosphere.
• The coldest temperature in the Earth's atmosphere, about -90 °C is found near the top of this layer.

Thermosphere: 

• This layer is found above Mesopause from 85 to 800 km.
• This is the warmest layer of the atmosphere.
• Aurora and satellites occur in this layer.

Exosphere​:

• ​This is the outermost layer of the atmosphere.
• It contains mainly oxygen and hydrogen atoms they are so few that they rarely collide.
• They follow ballistic trajectories under the influence of gravity, and some of them escape directly into space.

Ionosphere​:

• The ionosphere is a very active part of the atmosphere, and it grows and shrinks depending on the energy it absorbs from the Sun.
• The name ionosphere comes from the fact that gases in these layers are excited by solar radiation to form ions, which have an electrical charge.
• Due to the presence of ionized gasses, the ionosphere can reflect radio waves directed into the sky back toward the Earth.
• It overlaps the mesosphere, thermosphere, and exosphere.

Thus, the correct match is (a) - (ii), (b) - (iv), (c) -(i), (d) - (iii)

Noise pollution may cause or contribute to the following adverse effects:

• Anxiety, stress, nervousness, nausea, headache
• Emotional instability
• Hypertension
• Hearing loss
• Argumentativeness
• Increase in social conflicts
• Depression and fatigue
• Insomnia as a result of lack of undisturbed and refreshing sleep

Concept-

Vestigial organs are the organs that once were useful in an animal's body millions of years ago, but now they are useless or very close to useless.

Key Points Human heart-

• The human heart is not vestigial as at present times it has its own functions in the human body.
• The human heart is an organ that pumps blood throughout the body.
• Heart pumps the blood through the vessels of the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
• The tissues of the body need a constant supply of nutrition in order to be active which is performed by blood.

Additional Information Wisdom teeth

• Wisdom teeth are no longer totally necessary. Today, humans cook food to soften it, and we can cut and crush it with utensils.So at this time they are vestigial.
• Early humans needed to chew coarse, hearty foods, they required a broader jaw.
• Wisdom teeth grew in to give them more chewing power for this purpose.

Nictitating membrane of eye

• In humans, the nictitating membrane is the pink lump in the inner corner of the eyes which is known as the caruncula lacrimalis.
• In this structure, the remaining of the nictitating membrane are permanently folded into that corner and no longer functional.So it is vestigial.

Vermiform appendix

• The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm.
• Its function is to digest cellulose.

The correct answer is citric.

• Orange juice contains citric acid due to which tastes sour.

Key Points

• Fruits that contain citric acid are called citrus fruits.
• Citrus fruits are lemon, lime, orange, Grapefruit, etc.
• The formula of citric acid is C₆H₈O₇.

Additional Information

• Oxalic acid is found in tomato.
  • Its formula is C₂H₂O₄.
• Formic acid is found in the sting of ants and bees.
  • Its formula is CH₂O₂.
• Acetic acid is found in vinegar.
  • Its formula is id CH₃COOH.

Concept:

• Supersonic speed: An object moving with a speed greater than the speed of sound is said to move with a supersonic speed.
  • Generally, a bullet fired from a gun and aircraft moves with supersonic speed. 
  • The speed of sound is about 768 miles per hour (1,236 kilometers per hour) at sea level.
• Supersonic speeds are described by their "Mach number".
• Mach number: The ratio of the speed of the object to the speed of sound in the air of the same temperature and density is called Mach number.
  • Supersonic includes speeds up to five times faster than the speed of sound, or Mach 5.

Explanation:

• When the speed of any object exceeds the speed of sound, it is said to be traveling at Supersonic speed. So option 2 is correct.

Extra Points:

• Subsonic has a speed of less than 0.8 Mach.
• Hypersonic may have a speed between 5-10 Mach.

The correct answer is carbon.

Key Points

• A fullerene is an allotrope of carbon whose molecule consists of carbon atoms connected by single and double bonds so as to form a closed or partially closed mesh, with fused rings of five to seven atoms.
  • The molecule may be a hollow sphere, ellipsoid, tube, or many other shapes and sizes.
• Various allotropes of carbon are diamond, graphite, lonsdaleite, fullerene, C-540, C-70, amorphous carbon, carbon nanotube.
• Diamond and crystalline silicon are isomorphous because they both have a three-dimensional tetrahedral structure.
• Allotropy, the existence of a chemical element in two or more forms, which may differ in the arrangement of atoms in crystalline solids or in the occurrence of molecules that contain different numbers of atoms.

Additional Information

• When an element exists in more than one crystalline form, those forms are called allotropes; the two most common allotropes of carbon are diamond and graphite.
  • One of the allotropic form of a carbon is a fullerene in which “carbon atoms” are “arranged in a sphere”.
  • Each sphere has 60 carbon atoms and each carbon atom is linked by a single covalent.
  • The fullerene is considered as purest allotrope of “carbon” because they have “smooth structure” without having dangling bonds.