Learn and practice Aptitude questions and answers with explanation for interview, competitive exam (Pariksha Corner )

Monday, December 23, 2019

The advantage(s) of an economiser is/are

The advantage(s) of an economiser is/are
Ait increases the efficiency of the boiler plant
Bit reduces the range of temperature between different parts of the boiler
Cit makes for more rapid evaporation
DAll of these
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A four stroke cycle petrol engine requires for strokes of the piston to complete

A four stroke cycle petrol engine requires for strokes of the piston to complete
Aone cycle of operation
Btwo cycles of operation
Cfour cycles of operation
Deight cycles of operation
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The amount of heat generated/kg is known as

The amount of heat generated/kg is known as
Aheat energy
Bcalorific value
Clower calorific value
Dhigher calorific value
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The temperature at which the volume of a gas becomes zero is called

The temperature at which the volume of a gas becomes zero is called
Aabsolute temperature
Babsolute zero temperature
Cabsolute scale of temperature
DNone of these
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For the reversibility of a cycle, there should be

For the reversibility of a cycle, there should be
Aloss of energy
Bno loss of energy
Cgain of energy
Dno gain of energy
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Why is ozone layer important to mankind?

Why is ozone layer important to mankind?
AIt creates a protective covering against ultraviolet rays
BIt remains the temperature of earth
CIt release oxygen in the atmosphere
DIt release Corban Dioxide in the atmosphere
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Which gas is evolved during photosynthesis in plants?

Which gas is evolved during photosynthesis in plants?
ACarbon dioxide
BOxygen
CNitrogen
DHidrogen
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