A.an diesel oil heater
B.a waste heat boiler
C.a fresh water generator
D.all the above
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A.safety valve
B.blow down valve
C.scum valve
D.feed check valve
A.descriptions
B.discrepancies
C.different
D.deflections
A.completed
B.carried out
C.cleaned
D.steamed
A.one to supply steam to the main propulsion turbine
B.an auxiliary boiler
C.A and B
D.neither A nor B
A.fuel tank
B.bilge
C.atmosphere
D.auxiliary exhaust line
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?（）
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
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 （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
A grease gun is generally used to lubricate a （）.
One cause of high head pressure occurring in a refrigeration system can be （）.
A salinity indicator is used to determine the （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.