Common Admission Test (CAT) Questions and Answers with Explanation

Q:

What did Sir William Herschel discover in 1800?

A) Ultraviolet rays	B) Infra-red radiation
C) X rays	D) Microwaves

Answer & Explanation Answer: B) Infra-red radiation

Explanation:

Sir William Herschel discovered Infra-red radiation in 1800.

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Filed Under: Inventions
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Q:

Which Indian state produces the maximum wind energy?

A) Himachal Pradesh	B) Tamil Nadu
C) Karnataka	D) Maharashtra

Answer & Explanation Answer: B) Tamil Nadu

Explanation:

Tamilnadu produces the maximum wind energy of 7269Mw.

Then Maharashtra(4100MW)

-->Gujrat (3454MW)

--> Rajasthan (2784MW)

-->Then in line karnataka, Andhra Pradesh, Madhya Pradesh.

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Filed Under: General Science
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Q:

Rate of change of displacement is known as ............

A) Acceleration	B) Velocity
C) Speed	D) Distance

Answer & Explanation Answer: B) Velocity

Explanation:

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Filed Under: Physics
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Q:

National income accountants can avoid multiple counting by

A) subtracting NDP from GDP	B) add exports, but subtract imports
C) only counting final goods	D) None of the above

Answer & Explanation Answer: C) only counting final goods

Explanation:

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Filed Under: Indian Economy
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Q:

The number of electron levels in a magnesium atom is

A) 3	B) 2
C) 1	D) 0

Answer & Explanation Answer: A) 3

Explanation:

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Filed Under: Chemistry
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Q:

India held its 3rd environment forum with which nation?

A) Russia	B) Nepal
C) Singapore	D) Germany

Answer & Explanation Answer: D) Germany

Explanation:

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Filed Under: General Awareness
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Q:

Which compound is an electrolyte?

A) HCl	B) NaCl
C) HBr	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

A substance that dissociates into ions in solution and acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, and phosphate are examples of electrolytes, informally known as lytes.

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Filed Under: Chemistry
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Q:

If a + b + c = 27, then what is the value of ${(a - 7)}^{3} + {(b - 9)}^{3} + {(c - 11)}^{3} - 3 (a - 7) (b - 9) (c - 11)$ ?

A) 0	B) 9
C) 27	D) 3

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