A、in open air
B、inside cabins
C、in machinery space
D、underwater
更多“The tops of vents from gasoline tanks should terminate（）.”相关的问题
A、to the bottom of the expansion trunk B、to within 1% to 3% of its capacity C、to within 1% to 3% inches of its capacity D、1 to 3 inches from top of the vent pipe
A、In open air B、Inside cabins near the overhead C、In the machinery space near the engine air intake D、Underwater
A、positive head B、negative suction head C、mechanical seal D、vent valve attached to the casing at the top of the volute
A、immediately above the level of the oil B、at the top of the tank C、in the vent riser D、one meter from the deck
A、oil from flowing out of the tank vent B、air from entering the tank vent C、vapors from leaving the tank vent D、flames on deck from entering the tank vent
A、Each vent for the tank must be equal to the area of the tank filling line B、The tanks must be protected by overflows C、The total area of the vents or the overflow shall be at least equal to the area of the fill line D、There must be twice as much vent area as the area of the fill line
A、remove any air that may accumulate in the system B、take out unpleasant fumes from the refrigerant C、vent off excess refrigerant in an emergency D、permit opening the refrigerating system for cleaning and inspecting
A、A.oil from flowing out of the tank vent B、B.air from entering the tank vent C、C.vapors from leaving the tank vent D、D.flames on deck from entering the tank vent
A、On top of No.1 hatch B、Beside the hatches, forward of the midships house C、On top of the hatch immediately forward of the midships house D、On top of the hatch immediately aft of the midships house
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