Questions

Q:

The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called?

A) Mulching B) Contour barriers
C) Rock dam D) Terrace farming
 
Answer & Explanation Answer: C) Rock dam

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Filed Under: General Science
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Q:

The centre of a cyclone is a calm area, it is called the ________ of the storm.

A) point B) needle
C) eye D) limit
 
Answer & Explanation Answer: C) eye

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Q:

Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds.

A) 12500 B) 20
C) 40 D) 6250
 
Answer & Explanation Answer: B) 20

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Filed Under: Physics
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Q:

Which e-commerce website has partnered with NationalHighways Authority of India (NHAI) to enable cashlesspayments at all national and city toll plazas?

A) Paytm B) Mobikwik
C) Freecharge D) Oxigen
 
Answer & Explanation Answer: A) Paytm

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Q:

The Working Committee of National Congress sanctioned the resolution named 'Quit India' at

A) Wardha B) Nagpur
C) Mumbai D) Delhi
 
Answer & Explanation Answer: A) Wardha

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Filed Under: Indian Politics
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Q:

The drafting committee wrote the Indian Constitution in which language?

A) English and Hindi B) Only English
C) English and Urdu D) English, Hindi and Urdu
 
Answer & Explanation Answer: A) English and Hindi

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Q:

A cube is inscribed in a sphere. A right circular cylinder is within the cube touching all the vertical faces. A right circular once is inside the cylinder. Their heights are same and the diameter of the cone is equal to that of the cylinder.

Consider the following statements:

1) The surface area of the sphere is √5 Times the curved surface area of the cone.

2) The surface area of the cube is equal to the curved surface area of the cylinder. Which of the above statements is/are correct?

 

A) 1 only B) 2 only
C) Both 1 and 2  D) Neither 1 nor 2
 
Answer & Explanation Answer: D) Neither 1 nor 2

Explanation:
The top view of the given assembly will look like the figure above
Outermost is the sphere. Inside that there is a cube and within that there is a cone and cylinder with same radius.
Here side of cube = a
Diameter of Sphere = body diagnol = √3 a
Radius of sphere = √3 a/2 =r1
Height of Cylinder = Height of cone = side of cube = a =h
Radius of cylinder = Radius of cone = side of cube/2 = a/2 =r2(as shown in the figure)
 
Thus neither 1 nor 2 are true
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Filed Under: English
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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Curtail

A) Prolong B) Downsize
C) Lengthen D) Extend
 
Answer & Explanation Answer: B) Downsize

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Filed Under: English
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