單項(xiàng)選擇題The device used for preventing the passage of flames into enclosed spaces is called a ().

A.flame relief valve
B.flame stopper
C.safety valve
D.flame arrester


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1.單項(xiàng)選擇題Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increasedYou therefore should suspect ().

A.condensation in the fuel tank
B.a crack in the hull portion of the fuel tank
C.a load of bad fuel
D.contamination from the saltwater flushing system

2.單項(xiàng)選擇題Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by ().

A.sounding the tank
B.waiting for the vessel to list
C.examining tank boundaries
D.checking fuel oil strainers

3.單項(xiàng)選擇題Bilges may be pumped ().

A.on the outgoing tide
B.overboard after dark
C.overboard through an oily water separator
D.anytime in an emergency, i-emain engine lube oil failure

4.單項(xiàng)選擇題Waste oil from the lube oil sumps of machinery may NOT be ().

A.drained into the vessels bilges
B.reclaimed for other uses
C.held in a slop tank
D.purified and then reused

5.單項(xiàng)選擇題Portable carbon dioxide fire extinguishers should be sent ashore to be recharged ().

A.when the remaining charge volume is less than 90 percent of the required VOLUME
B.at each inspection for certification
C.at each annual inspection
D.when the weight loss exceeds 10% of weight of charge

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By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a()

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To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()

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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()

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The additional mark ()in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

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During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.

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Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()

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“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()

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The main purpose of port State control is not to()

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Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()

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