A.completed
B.carried out
C.cleaned
D.steamed
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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
A.feed pump suction line
B.hot well
C.shell of the feed heater
D.feed lines to the boiler
最新試題
The major source of chemical contaminants in hydraulic fluid is （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
Thermostatic expansion valves can be adjusted for （）.
A salinity indicator is used to determine the （）.
The usual symptoms of cavitation in a centrifugal pump is （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
A pressure drop through the refrigerant liquid line may cause （）.
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.