HVAC Excellence Exam 100% Correct!

Heat which causes a change in temperature of a substance is called. - ANSWERsensible heat. Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process is called? - ANSWERLatent heat Heat added to the refrigerant in a vapor state after the evaporator process is called. - ANSWERSuperheat A scroll compressor moves refrigerant by means of. - ANSWERInvolute spirals The movement of heat by way of fluid or is called air or gas. - ANSWERConvection The movement of heat through a solid object is called. - ANSWERConduction The standard unit for measuring the QUANTITY of heat in a substance is (intensity would be temp) - ANSWERBritish thermal unit A refrigerant gives up heat when it. - ANSWERIt condenses Why must refrigerant in the suction line be slightly warmer than the saturation temperature? - ANSWERPrevent liquid slugging of the compressor It is desirable for refrigerant in the suction line to be slightly superheated in order to. - ANSWERInsure liquid refrigerant does not enter the compressor The state of the refrigerants in the suction line should be. - ANSWERLow pressure / Low temperature vapor The state of the refrigerant entering the condenser is. - ANSWERHigh pressure / Highly superheated vapor The evaporator. - ANSWERTransfers heat from the refrigerated space to the refrigerant Which of the following is not a thermodynamic property of refrigerant. - ANSWERFlammability The sequential order of stepson the vapor-compression process are. -