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Heat pump and refrigeration cycle: Quiz


Question 1: In this cycle, a circulating refrigerant such as ________ enters the compressor as a vapor.
ChlorofluorocarbonChloroformCarbon tetrachlorideHalomethane

Question 2: The vapor is compressed at constant ________ and exits the compressor superheated.
EntropyGibbs free energyThermodynamicsStatistical mechanics

Question 3: The ________ of the cycle can be analyzed on a diagram[1][2] as shown in Figure 2.
EntropyThermodynamicsThermodynamic equationsStatistical mechanics

Question 4: Thermodynamic heat pump and refrigeration cycles are the models for ________ and refrigerators.
Vapor-compression refrigerationAir conditionerEcoCuteHeat pump

Question 5: The gas cycle is less efficient than the vapor compression cycle because the gas cycle works on the reverse Brayton cycle instead of the reverse ________.
Combined cycleCogenerationRankine cycleCoal

Question 6: The operating principle of the ________ cycle was described mathematically by Sadi Carnot in 1824 as a heat engine.
Vapor-compression refrigerationRefrigerationHeat pumpRefrigerator

Question 7: ________ are another form.
Geothermal powerGeothermal heat pumpGeothermal heatingGeothermal electricity

Question 8: The air cycle machine is very common, however, on ________-powered jet airliners since compressed air is readily available from the engines' compressor sections.
Diesel engineGas turbineInternal combustion enginePower-to-weight ratio


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