A.too much cooling water going through the condenser
B.not enough refrigerant in the system
C.a leak in the evaporator coils
D.no enough cooling water going through the condenser
您可能感兴趣的试卷
你可能感兴趣的试题
A.king valve and the expansion valve
B.solenoid valve and expansion valve
C.evaporator and receiver
D.compressor and evaporator
A.discharge side of condenser
B.discharge side of compressor
C.outlet of the evaporator
D.receiver tank
A.increase the amount of cooling water to the condenser
B.decrease the amount of cooling water to the condenser
C.add more refrigerant to the system
D.remove some of the refrigerant from the system
A.the relief valve should open before the high-pressure cutout
B.the relief valve should open and let excess refrigerant go to receiver
C.the high-pressure cutout switch should operate before the relief valve opens
D.close in on the suction valve
A.finished joints
B.welded joints
C.ground joints
D.soldered joints
A.a clogged scale trap
B.air in the system
C.automatic controls not functioning properly
D.insufficient cooling water to the condenser
A.separating chamber
B.system of baffles
C.purge valve
D.vacuum reducing valve
A.saltwater side of the condenser
B.refrigerant side of the condenser
C.in the evaporator coils
D.in the suction strainer
A.cutout
B.pressure controller
C.controller switch
D.cutout switch
A.remove any air that may accumulate in the system
B.take out unpleasant fumes from the refrigerant
C.vent off excess refrigerant in an emergency
D.permit opening the refrigerating system for cleaning and inspecting
最新试题
()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
By 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 a()
The additional mark ()in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
The ISPS Code consists of a mandatory section-Part A, which shows()
To proceed to the assistance of a ship in distress is()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
Diesel engine air start system check valves are opened by ()
Flame failure in an automatically fired auxiliary boiler can from a/an ()
Under MARPOL Code the ship to which it applies has to carry ()