CAT Questions

Q:

Glass is made of which material?

A) Calcium carbonate B) Sand
C) Silver Iodide D) Lime
 
Answer & Explanation Answer: B) Sand

Explanation:

Glass is made from heating of sand. To melt sand to make glass, the temperature needed is above 1800 deg celcius.

glass_is_made_of_which_material1562221721.jpg image

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Q:

What is the general formula for a straight-chain alkane?

A) C2nH2n+3. B) CnH2n+2
C) CnH2n D) CnH3n+2.
 
Answer & Explanation Answer: B) CnH2n+2

Explanation:
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Q:

The federal government debt is equal to the

A) sum of past budget deficits minus the sum of past budget surpluses B) annual difference between federal government tax revenues and outlays
C) obligations of benefits from federal taxes and expenditures D) sum of all annual federal government outlays
 
Answer & Explanation Answer: A) sum of past budget deficits minus the sum of past budget surpluses

Explanation:

The federal government debt is equal to the sum of past budget deficits minus the sum of past budget surpluses.

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Q:

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the “No error” option.

A. He has made a mistake

B. of which

C. I am certain

D. No error

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:
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Q:

Indian Army Day is celebrated on

A) 16th October B) 19th November
C) 26th Decenber D) 15th January
 
Answer & Explanation Answer: D) 15th January

Explanation:

Indian_Army_Day1535434837.jpg image

Indian Army Day is celebrated every year all over the country on 15th January.

 

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Q:

Materials that usually are good conductors of electricity?

A) Aluminium B) Lead
C) Nickel D) Wood
 
Answer & Explanation Answer: A) Aluminium

Explanation:

Materials that usually allow electricity to pass through them are called Good conductors of electricity.


Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

 

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...

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Q:

Which is an example of a physical change?

A) Dissolving sugar in water B) Breaking glass
C) Melting of ice D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

In all the above given options, there is no chemical change or reactions takes place only the shape or physical state is changed.

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence. 
 
Of or connected with the sense of touch

A) Apperception B) Eavesdrop
C) Tactile D) Hark
 
Answer & Explanation Answer: C) Tactile

Explanation:
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