A.descriptions
B.discrepancies
C.different
D.deflections
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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
A.ensure feed water flow into the boiler
B.keep the steam drum pressure high
C.prevent water hammer in the feed line
D.help the feed water flash to steam
A.take no measures
B.extinguish the fire as soon as possible
C.feed water to the boiler
D.open the blow down valve
最新試題
One cause of high head pressure occurring in a refrigeration system can be （）.
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.
The major source of chemical contaminants in hydraulic fluid 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 rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
A grease gun is generally used to lubricate a （）.
When the steering gear is in operation, you should （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.