MCQs: The general rule for rating refrigeration systems (excepting for C02 system) is to approximate following h.p. per ton of refrigeration__________________?
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MCQs: Vertical lines on pressure-enthalpy chart show constant_______________?
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MCQs: The coefficient of performance is the ratio of the refrigerant effect to the_________________?
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MCQs: Under-cooling in a refrigeration cycle_________________?
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MCQs: The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is_________________?
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MCQs: The advantage of dry compression is that________________?
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MCQs: For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then_________________?
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MCQs: One ton of the refrigeration is_________________?
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MCQs: Short horizontal lines on pressure-enthalpy chart show__________________?
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MCQs: Ammonia is __________________?
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MCQs: Mass flow ratio of NH3 in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of___________________?
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MCQs: Where does the lowest temperature occur in a vapour compression cycle ?
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MCQs: A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is________________?
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MCQs: Highest pressure encountered in a refrigeration system should be________________?
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MCQs: If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be________________?
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MCQs: Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system ?
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MCQs: Which of the following is not a desirable property of a refrigerant_________________?
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MCQs: At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant_________________?
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MCQs: Formation of frost on evaporator in refrigerator ________________?
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MCQs: In a refrigeration system, heat absorbed in comparison to heat rejected is_________________?
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