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Q:

A solar cell is made up of:

A) Carbon B) Gallium
C) Silicon D) Teflon
 
Answer & Explanation Answer: C) Silicon

Explanation:
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Filed Under: General Science
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Q:

Which one of the following gases is released mostly from landfills in urban areas?

A) Nitrogen B) Hydrogen
C) Methane D) Oxygen
 
Answer & Explanation Answer: C) Methane

Explanation:

Decomposing waste in the landfills, by the action of microorganisms, produce methane and carbon dioxide. Landfill gas consists of 40-60% of methane and rest is carbon dioxide. Trace amount of volatile organic compounds (<1) are also present which mainly comprise of hydrocarbons.

 

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Q:

Azolla increases soil fertility for ....

A) maize cultivation B) wheat cultivation
C) barley cultivation D) rice cultivation
 
Answer & Explanation Answer: D) rice cultivation

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Filed Under: General Science
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
God is _____.

A) immanent B) mortal
C) imminent D) deference
 
Answer & Explanation Answer: A) immanent

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Q:

The melting point of ice is ____ K.

A) 253.16 B) 263.16
C) 273.16 D) 283.16
 
Answer & Explanation Answer: C) 273.16

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Filed Under: Chemistry
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Q:

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

Delegation is the transfer of/ authority through superior to subordinate/ at different levels/ in an organized sector.

A) Delegation is the transfer of B) Authority through superior to subordinate
C) At different levels D. In an organized sector D) No error
 
Answer & Explanation Answer: B) Authority through superior to subordinate

Explanation:

The error lies in the second part of the sentence. The correct usage for transfer is 'from........to........' and not 'through.....to......'. Hence, 'through' must be replaced with 'from'.

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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. 

 

Rivet

 

A) Heavy B) Joyous  
C) Engage D) Revolve
 
Answer & Explanation Answer: C) Engage

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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

 

But we expect them (to performs) better than all others.

 

 

A) to performing B) perform
C) to perform D) no improvement
 
Answer & Explanation Answer: C) to perform

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