Refrigeration & Air Conditioning Mcqs


Q.  Absorption system normally uses the following refrigerant___________________?

a. Freon-11
b. Freon-22
c. C02
d. S02
e. ammonia


ANSWER: See Answer
 
No explanation is available for this question!
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:  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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MCQs:  Water boils when its vapour pressure ___________________?
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MCQs:  Equivalent evaporation of water is the evaporation “for a feed water supply at 100°C__________________?
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MCQs:  The increase in pressure _________________?
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MCQs:  Hygrometery deals with the_________________?
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MCQs:  Alkaline pyrogallate is used in Orsat’s apparatus for absorption of _________________?
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MCQs:  Efficiency of rankine cycle can be increased by_________________?
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MCQs:  Efficiency of a thermal cycle increases by ________________?
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