Questions

Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

 

The average age at which(A)/people die of heart diseases(B)/are decreasing.(C)/No error(D)

 

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

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

 

Either of two parallels of latitude on the earth, one 23°27′ north of the equator and the other 23°27′ south of the equator

 

A) tropic B) torrid
C) arctic D) frigid
 
Answer & Explanation Answer: A) tropic

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Q:

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

 

Reap the whirlwind

 

A) Providing that other factors or circumstance remain the same B) Suffer negative consequences as a result of one’s actions
C) An indication that something is accepted or regarded favourably D) Believing that moderation is more satisfying than excess
 
Answer & Explanation Answer: B) Suffer negative consequences as a result of one’s actions

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Q:

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

A) gratifying B) gretifying
C) gratifyeing D) gretifyeing
 
Answer & Explanation Answer: A) gratifying

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Q:

what is ratio

Answer ratio means how much part of one thing with respect of other thing.
like if we have 12 pens & 6 boys are there then the ratio is 2:1
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Q:

The centroid of an equilateral triangle ABC is G. If AB is 6 cms, the length of AG is

A) √3 cm B) 2√3 cm
C) 3√2 cm D) 2√2 cm
 
Answer & Explanation Answer: B) 2√3 cm

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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:

Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

A) 2000 B) 0.016
C) 1000 D) 0.008
 
Answer & Explanation Answer: D) 0.008

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