Refrigeration & Air Conditioning Mcqs


Q.  Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system ?

a. strong solution to weak solution
b. weak solution to strong solution
c. strong solution to ammonia vapour
d. ammonia vapour to weak solution
e. ammonia vapour to strong solution


ANSWER: See Answer
 
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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:  Equivalent evaporation is the amount of water evaporated in a boiler from and at ____________________?
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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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MCQs:  On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by_______________?
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MCQs:  The dry saturated steam at very low pressure, (5-10 kg/cm2) when throttled to atmosphere will become________________?
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MCQs:  The dry saturated steam at very high pressure (150-200 kg/cm2) when throttled to atmosphere will become_______________?
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MCQs:  In a throttling process_________________?
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MCQs:  Latent heat of dry steam at atmospneric pressure is equal to____________________?
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MCQs:  At critical point, i.e. p=225.65 kg/cm2, the latent enthalpy of vaporisation is______________?
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MCQs:  In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is__________________?
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MCQs:  Heating wet steam at constant temperature is heating it at constant_________________?
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MCQs:  The state of vapour under saturation condition is described by_______________?
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