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单选题 Refrigerant enters the condenser as a( )
学科：轮机英语
时间：2023-09-26 16:26:57
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题目1单选题
The heat identified by only a change in temperature is known as( )A. sensible heatB. latent heatC. total heatD. residual heat
题目2单选题
The sum of the sensible heat and the latent heat of any substance is known as( )A. total heatB. residual heatC. specific heatD. superheat
题目3单选题
Which of the following modes of heat transfer does NOT require any physical contact betweenA. RadiationB. ConductionC. Natural convectionD. Contact directly
题目4单选题
Which of the listed methods of heat transfer takes place when two substances of differenttemperatures are in physical contact with each other?( )A. RadiationB. ConductionC. ConvectionD. Each of radiation, conduction, convection
题目5单选题
Which of the following conditions must exist for heat to flow from one object to another?( )A. The two objects must be in physical contactB. The two objects must be the same sizeC. There must be an existing temperature differentialD. There must be an existing weight differential
题目6单选题
What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?( )A. RefrigeratorB. RefrigerantC. Cooling mediumD. Brine
题目7单选题
Refrigerant enters the condenser as a( )A. high pressure liquidB. low pressure vaporC. high pressure vaporD. low pressure liquid
题目8单选题
The rate of heat transfer from a hot region to a cold region is affected most by the( )A. size of the heat sinkB. temperature difference between the regionsC. size of the heat sourceD. total heat of the system
题目9单选题
The temperature of the refrigerant in the evaporator coil depends mostly upon the( )A. refrigerant pressure in the evaporatorB. cooling water temperature to the condenserC. heat load in the refrigerator compartmentD. solenoid valve in the liquid line
题目10单选题
The low pressure side of a refrigeration system is considered to exist from the( )A. expansion valve to the compressorB. receiver to the expansion coilC. expansion valve to the evaporatorD. condenser to the expansion valve
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