A.Open the bilge pump for inspection
B.Remove each of the manifold valves
C.Remove only the manifold valve to the affected bilge-well
D.Attempt to pump out another bilge well to determine if the entire system is affected
您可能感兴趣的试卷
你可能感兴趣的试题
A.too much refrigerant in the system
B.oil entrained in the refrigerant
C.less than a full charge of refrigerant in the system
D.ice crystals forming in the refrigerant
A.with both pumps on line at the same time
B.with one pump on standby
C.with the follow-up gear disconnected
D.only when the rudder is moved amidships
A.high temperature distillate can be re- circulated to induce additional flashing
B.scale formation is not a severe problem
C.cold shocking is more effective in removing scale
D.water purity is greatly increased at high capacity
A.high pressure liquid line
B.low pressure liquid line
C.high pressure vapor line
D.low pressure vapor line
A.more efficiently uses available engine power
B.operates at a lower efficiency at a fixed speed
C.produces the same torque at lower engine power
D.develops its rated power at a lower speed
A.more efficiently uses available engine power
B.operates at a lower efficiency at a fixed speed
C.produces the same torque at lower engine power
D.develops its rated power at a lower speed
A.Dissipate heat
B.Trap foreign matter
C.Separate air from the oil
D.All of the above
A.Dissipate heat
B.Trap foreign matter
C.Separate air from the oil
D.All of the above
A.Proper refrigerant charge
B.Faulty expansion valve
C.Insufficient refrigerant
D.Solenoid valve stuck open
A.freezing the expansion valve closed
B.corrosion of system piping
C.improper temperature regulation
D.all of the above
最新试题
Low compressor head pressure in a refrigeration system can be caused by().
Which of the following statements is correct concerning heat transfer?()
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will ().
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?()
The major source of chemical contaminants in hydraulic fluid is ().
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
An excessive charge of refrigerant in an air-cooled refrigeration system can cause ().
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be ().
One cause of high head pressure occurring in a refrigeration system can be ().