單項(xiàng)選擇題
A.transmitting the heat of a fire through the ship s metal B.burning liquids flowing into another space C.heated gases flowing through ventilation systems D.the transfer of heat across an unobstructed space
A.after the mooring trial has passed B.before the mooring trial C.under the surveyors supervision D.after repair
A."slow" direction, just before the 12 o'clock position B."fast" direction, just after the 12 o'clock position C."fast" direction, just before the 12 o'clock position D."slow" direction, just after the 12 o'clock position
A.fuel injectors B.exhaust valves C.intake valves D.all of the above
A.breaking the fire chemical chain reaction B.smothering C.cooling D.isolating the heat from the fuel
A.metal particles loosened by wear B.air when air cleaners are not used C.condensation of water vapors D.breakdown of the lubricating oil by dilution
A.has continuously for a long period B.suction pressure is below normal C.oil level is below normal D.starts after a long idle period
A.changing filter elements would not interrupt engine operation B.filtering occurs twice in each pass of oil through the system C.clogging will not occur D.dropping pressure is half of that through a single filter unit
A.Steam trap B.Check valve C.Separator D.Strainer
A.cause loss of hydraulic oil from the system B.result in extreme damage to the pump C.cause damage to the pump ff not continually drained from the pump casing D.result in the system high side pressure to substantially drop off
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