Questions

Q:

A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will

A) increase B) decrease
C) remains the same D) first decrease and then increase
 
Answer & Explanation Answer: B) decrease

Explanation:

Let M and m grams be the mass of boat + rock in it. By law of floatation(M+m) grams of water will be displaced. This has a volume of (M+m)cc. That means the level of water in pool has risen up by (M+m)cc with the boat + rock when it is floating. If the rocks in the boat are thrown not into the pool but outside, the weight left is only M grams the weight of the boat. This will have displaced M cc of water only i.e less water than in the case of loaded boat. But if the rocks are put in the water in the pool and not outside, then the water in the pool will rise not only by M cc on account of empty boat but also by a volume of the stone put into it. This volume will be mdwhere m is the mass of rock and d density of rock.

Now md is  < m. Thus the total rise will be M+mdwhich is < M + m.

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Q:

Which one of the following began with the Dandi March ?

A) Civil disobedience Movement B) Quit India Movement
C) Non-Cooperation Movement D) Home rule Movement
 
Answer & Explanation Answer: A) Civil disobedience Movement

Explanation:
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Filed Under: Indian History
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Q:

EPROM can be used for

A) Erasing and reconstructing the contents of ROM B) Duplicating ROM
C) Reconstructing the contents of ROM D) Erasing the contents of ROM
 
Answer & Explanation Answer: A) Erasing and reconstructing the contents of ROM

Explanation:

EPROM stands for Erasable Programmable Read-only Memory.

eprom_can_be_used_for1563542842.jpg image

It is a programmable read-only memory that can be used for erased and re-used.

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Filed Under: Computer
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Q:

Who is considered as the master of Greek comedy ?

A) Aeschylus B) Sophocles
C) Aristophanes D) Philip
 
Answer & Explanation Answer: C) Aristophanes

Explanation:

"Aeschylus" was the founder of Greek tragedy, he was author of "Promethus Bound".

"Sophocles" is considered as the greatest Greek tragedians.

"Philip" was the father of Alexander.

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Q:

If a band is played on the moon the sound will

A) reverberate B) be heard by us faintly
C) be heard upto 10km from it D) not be heard at any distance at all from it
 
Answer & Explanation Answer: D) not be heard at any distance at all from it

Explanation:

As there is no atmosphere surrounding the moon, the sound from any band that is played there cannot travel outwards there is no material medium  surrounding it for its propagation.

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Q:

States earn maximum revenue through

A) excise duties B) commercial taxes
C) land revenue D) custom revenue
 
Answer & Explanation Answer: B) commercial taxes

Explanation:

States_earn_maximum_revenue_through1556278854.jpg image

 

States earn maximum revenue through commercial taxes

 

Commercial Tax is a form of sales tax, now referred to as GST(Goods and Service Tax) in India. It is levied on all kinds of commercial goods and services.

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Filed Under: Indian Economy
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Q:

Which is the simplest file structure?

A) Sequential B) Indexed
C) Random D) None
 
Answer & Explanation Answer: A) Sequential

Explanation:

Sequential is the simplest file structure

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Q:

Nawab Siraj -ud-daulah of Bengal was defeated by the English in the battle of Plassey, mainly

A) because the English Forces were much stronger than those of the Nawab B) because of Clive's conspiracy with the Nawab's Commander-in-Chief Mir Jafar and rich bankers of Bengal
C) because of Siraj-ud-Daulah's retirement from the battlefield D) because of the capture of a band of frenchmen under the Nawab's service by the English
 
Answer & Explanation Answer: B) because of Clive's conspiracy with the Nawab's Commander-in-Chief Mir Jafar and rich bankers of Bengal

Explanation:
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