Refrigeration & Air Conditioning Mcqs


Q.  For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then_________________?

a. bigger cabinet should be used
b. smaller cabinet should be used
c. perfectly tight vapour seal should be used
d. refrigerant with lower evaporation temperature should be used
e. refrigerant with high boiling point must be used


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  At very low temperature, the melting and boiling temperatures become equal. This temperature is____________________?
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MCQs:  The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is__________________?
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MCQs:  The saturation temperature of steam with increase in pressure increases____________________?
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MCQs:  For water, at pressures below atmospheric___________________?
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MCQs:  The critical pressure at which latent heat of vaporisation is zero is________________?
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MCQs:  Coke is produced by__________________?
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MCQs:  1 kg.m is equal to_________________?
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MCQs:  The equivalent evaporation of a boiler is a measure to compare _________________?
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MCQs:  Sublimation region is the region where__________________?
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MCQs:  One kg of steam sample contains 0.8 kg dry steam; it’s dryness fraction is__________________?
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MCQs:  The specific heat of superheated steam in kcal/kg is generally of the order of___________________?
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MCQs:  A wet vapour can be completely specified by__________________?
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