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
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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
最新試題
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
A salinity indicator is used to determine the ().
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its ().
The control mode in which the final control element is moved from one of two flexed positions to the other is known as ().
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 ().
A pressure drop through the refrigerant liquid line may cause ().
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of ().
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
The general purpose of a heat exchanger is to ().