Questions

Q:

A boy is swinging a ball attached to a string in a horizotal circle. If the string snaps 

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks D) None of these
 
Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having been removed the body cannot  execute the curved path

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Q:

Electrostatic precipitator is used to control

A) Water pollution B) Noise pollution
C) Air pollution D) Solid waste
 
Answer & Explanation Answer: C) Air pollution

Explanation:

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

                         Electrostatic_precipitator_is_used_to_control1564054124.png image

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Q:

A grouping of stars that resembles a picture

A) Galaxy B) Asteroid
C) Constellation D) Milkyway
 
Answer & Explanation Answer: C) Constellation

Explanation:

A grouping of stars that resembles a picture i.e, forms an imaginary outline or pattern typically representing an animal, mythological person or creature, a god, or an inanimate object is called a constellation. The night sky is divided into 88 sections called constellations.

 

A_grouping_of_stars_that_resembles_a_picture1560168542.png image

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Q:

Name the state assembly, which has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age.

A) Rajasthan Assembly B) Uttar Pradesh Assembly
C) Maharashtra Assembly D) Bihar Assembly
 
Answer & Explanation Answer: A) Rajasthan Assembly

Explanation:

Rajasthan assembly has passed an amendment bill awarding death penalty for convicts involved in

the rape of girls below 12 years of age. State Home Minister Gulab Chand Kataria introduced

'The Criminal Laws (Rajasthan Amendment) Bill, 2018' in the assembly, which was passed in the

House by a voice vote following a debate.

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Q:

Where do the greenhouse gases come from?

A) Agriculture B) Land-use change
C) Fosssil fuels D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Most of the emissions of greenhouse gases (GHG) come primarily from burning fossil fuels (coal, hydrocarbon gas liquids, natural gas, and petroleum) for energy use and the major greenhouse gas is of course carbon dioxide (CO2) which comes from burning fossil fuels and land-use change.

But methane (CH4) and nitrous oxide (N2O), which mostly come from agriculture and waste, are also significant GHGs and shouldn't be discounted.

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2 3008
Q:

Relationships among people are

A) not influenced by people's ideas and attitudes. B) something that must be maintained to stay healthy and strong.
C) one of two types—social or working. D) usually simple and easy to understand.
 
Answer & Explanation Answer: B) something that must be maintained to stay healthy and strong.

Explanation:

Relationships among people are to be maintained in such a way that the people must stay healthy and to become strong enough.

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Q:

A parallel-plate capacitor of capacitance C1is  made  using  two  gold  plates.  Another parallel-plate capacitor of capacitance C2is made  using  two  aluminium  plates  with same  plate  separation,  and  all  the  four plates  are  of  same  area.  If gand aPare respectively  the  electrical  resistivities  of gold and aluminium, then which one of the following relations is correct?

A) C1>C2 B) C2>C1
C) C1pa = C2pg D) C1 = C2
 
Answer & Explanation Answer: D) C1 = C2

Explanation:

C1= capacitance of gold plates

C2=   capacitance   of   aluminium plates

rg= Gold’s resistivity

ra= Aluminium’s resistivity

As the capacitance depends on the shape,  size  &  geometrical  placing of  the  conductors  &  the  medium between them, hence, the value of capacitance  will  be  independent  of resistivity. Therefore, C1= C2

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Q:

Which of the following programmes was launched in 2005-06 for creating infrastucture and basic amenities in rural parts of our Country

A) Janani Surksha Yojana B) Sarva Siksha Abhiyan
C) Swarnajayanti Shahari Rozagar Yojana D) Bharat Nirman Programme
 
Answer & Explanation Answer: D) Bharat Nirman Programme

Explanation:
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