A.suction side of a bilge pump
B.exhaust manifold of an auxiliary diesel
C.discharge line from an air compressor
D.chemical feed tank of an evaporator
您可能感興趣的試卷
你可能感興趣的試題
A.They should always be started with the discharge valve closed
B.They should always be started with the discharge valve opened
C.A priming pump is always required to flood the impeller suction
D.They should always be started with the sealing line valves closed
A.compressor damage from improper lubrication
B.refrigerant absorption by the lubricant
C.increased viscosity in the lubricant
D.carbon deposit on the compressor suction valves
A.Spring-centered valve
B.Unloading valve
C.Three-position valve
D.Two-position valve
A.Expansion valve
B.Condenser
C.Evaporator
D.Compressor
A.The condenser and the expansion valve
B.The king valve and the solenoid valve
C.The compressor and the expansion valve
D.The condenser and the solenoid valve
最新試題
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?()
The general purpose of a heat exchanger is to ().
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be ().
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
Thermostatic expansion valves can be adjusted for ().
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should ().
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its ().