The temperature of the refrigerant in the evaporator coil depends mostly upon the ___.

A．refrigerant pressure in the evaporator

B．cooling water temperature to the condenser

C．heat load in the refrigerator compartment

D．solenoid valve in the liquid line

[单选题]As the temperature of the air reaches the dew point，（）.A . rain must developB . fog may formC . it begins to snowD . water freeze

[单选题]To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the_______ .A．suction service valve as a vaporB．suction service valve as a liquidC．discharge service valve as a vaporD．charging valve as a

[单选题]______is the temperature today?A.WhatB.HowC.How manyD.How much

[单选题]______ the temperature, ______ water turns into steam.A． The high... the fastB． Higher... fasterC． The more higher... the fasterD． The higher... the faster

[单选题]The rising of the exhaust temperature in manifold pipe may NOT result from （）.A . too great a loadingB . fouled turbochargerC . bad combustionD . excessive air

[单选题]If the coolant temperature of a closed cooling water system for a diesel enginegradually increases, the trouble usually is( ).A．a broken shaft on the freshwater pumpB．an excessive accumulation of scale in the heat exchangerC．an incorrect thermostatic

[单选题]The higher the temperature, __________ the liquidevaporates.A.the faster B.

[单选题]B．y comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine The device most commonly used is aA．tachometerB．pyrometerC．dynamometerD．calorimeter

[单选题]As the temperature of an air mass decreases，the（）.A . absolute humidity decreasesB . relative humidity increasesC . specific humidity decreasesD . dew point rise

[单选题]Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.A . cooling water pumpB . nozzle cooling passagesC . cylinder jacketsD . heat exchanger