Questions

Q:

Sher Khan defeated _________ at Chausa (1539) and Kanauj (1540), forcing him to flee to Iran.

A) Aurangzeb B) Humayun
C) Muhammad Azam Shah D) Bahadur Shah I
 
Answer & Explanation Answer: B) Humayun

Explanation:
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Filed Under: Indian History
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Q:

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

A) 3 cm B) 1.5 cm
C) 1 cm D) 2.5 cm
 
Answer & Explanation Answer: C) 1 cm

Explanation:

Let, inner radius of cylinder be ‘x’ cm.
4/3 π(6)3 = π × 32 (52 − x2)

or, (4 × 6 × 6 × 6) / (3 × 32) = 25 − x2 or, x2 = 25 − 9
or, x = 4 cm
Hence, thickness = 5 – 4 = 1 cm.

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Q:

The material used in electric heater is

A) Tungsten B) Nichrome
C) Brass D) Steel
 
Answer & Explanation Answer: B) Nichrome

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Filed Under: Physics

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Q:

Acceleration due to gravity on a planet decreases with ______.

A) decrease in radius of the planet B) increase in mass of the planet
C) decrease in mass of the body D) increase in altitude from surface of the planet
 
Answer & Explanation Answer: D) increase in altitude from surface of the planet

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Filed Under: Physics
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Q:

While watching 3D movies at the theater, we have to wear special glasses because?

A) The glasses allow our left and right eyes to see different images B) 3-D movies use special colors which cannot be sensed by the human eye
C) 3-D movies are brighter than ordinary movies and can hurt our eyes if seen directly D) The glasses allow both the eyes to see similar images
 
Answer & Explanation Answer: A) The glasses allow our left and right eyes to see different images

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Filed Under: Physics
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

 

By the seat of one's pants

 

A) When one is saved in the nick of time B) Your future depends on what choices you make now
C) To do it using only one's own experience and judgment D) Nothing worthwhile can be achieved if you sit in one place
 
Answer & Explanation Answer: C) To do it using only one's own experience and judgment

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Filed Under: English
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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one, which best expresses the same sentence in Passive/Active voice.

 

I will wash the car every Sunday.

A) The car would be washed by me every Sunday. B) The car will be washed by me every Sunday.
C) Every Sunday the car would be washed by me. D) The car will have been washed by me every Sunday.
 
Answer & Explanation Answer: B) The car will be washed by me every Sunday.

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Filed Under: English
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Q:

Sour taste of lemon is due to the presence of which of the following ?

A) Citric acid B) Acetic acid
C) Oxalic acid D) Formic acid
 
Answer & Explanation Answer: A) Citric acid

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Filed Under: Chemistry
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