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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
131

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

131) In a saturated air-water vapour mixture, the

dry bulb temperature is higher than wet bulb temperature

dew point temperature is lower than wet bulb temperature

dry bulb, wet bulb and dew point temperature are same

dry bulb temperature is higher than dew point temperature

Answer is:

dry bulb, wet bulb and dew point temperature are same

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

132) Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure.

Right

Wrong

Answer is:

Right

133) The capillary tube is not used in large capacity refrigeration systems because

cost is too high

capacity control is not possible

it is made of copper

required pressure drop can not be achieved

Answer is:

capacity control is not possible

134) The ratio of emissive power of a body to the emissive power of a perfectly black body is called emissivity.

Agree

Disagree

Answer is:

Agree

135) The thermostatic expansion valve operates on the changes in the

degree of superheat at exit from the evaporator

temperature of the evaporator

pressure in the evaporator

none of these

Answer is:

degree of superheat at exit from the evaporator

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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