Questions

Q:

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

A) 20° B) 30°
C) 40° D) 50°
 
Answer & Explanation Answer: C) 40°

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Q:

What of the given below devices converts chemical energy to electrical energy?

A) Transformer B) Battery
C) Electric Generator D) Wheel
 
Answer & Explanation Answer: B) Battery

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Q:

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

A) MR B) M/R2
C) M2/R D) M/R
 
Answer & Explanation Answer: B) M/R2

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Q:

If a body is whirled in a circle, then the work done on it ___.

A) is zero B) is positive
C) cannot be determined D) is negative
 
Answer & Explanation Answer: A) is zero

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Q:

Which  one  of  the  following  indices  is  now used  by  the  Reserve  Bank  of  India  to measure the rate of inflation in India?

A) NASDAQ Index B) BSE Index
C) Consumer Price Index D) Wholesale Price Index
 
Answer & Explanation Answer: C) Consumer Price Index

Explanation:

The  Wholesale  Price  Index  (WPI) was  main  index  for  measurement of  inflation  in  India  till  April  2014 when  RBI  adopted  new  Consumer Price   Index   (CPI)   as   the   key measure of inflation.

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Q:

­ Inflation exists when

A) there is general increase in the prices over time. B) there are periodic decreases in the price level.
C) there are continuous increases in the output level over time. D) there is rise in the purchasing value of money.
 
Answer & Explanation Answer: A) there is general increase in the prices over time.

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Q:

__________ says that if we keep increasing the employment of an input, with other inputs fixed, eventually a point will be reached after which the resulting addition to output (i.e., marginal product of that input) will start falling.

A) Law of diminishing marginal product B) Law of variable proportions
C) The Short Run D) The Long Run
 
Answer & Explanation Answer: A) Law of diminishing marginal product

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Q:

By how many atomic mass units do subsequent members of homologous series differ?

A) 26 B) 32
C) 20 D) 14
 
Answer & Explanation Answer: D) 14

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