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单选题
（）is a caing used for exhaust pipe from the engines.
A
The funnel
B
The messroom
C
The galley
D
The satellite antenna
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bilge water may enter the exhaust pipeB
entry of air may cause vapor lockC
carbon monoxide may enter the interior of the vesselD
the joint gaskets may be blown
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单选题Diesel engine cylinder head test cocks are used to（）A
check cylinder lubrication prior to starting engineB
connect exhaust gas analyzers to determine engine efficiencyC
pressure test cylinder heads to check for leaksD
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单选题A chock is a（）.A
deck fitting used to secure mooring linesB
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sharp block of wood used to support hygroscopic cargoD
smoke pipe for the galley stove
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单选题Diesel engine exhaust temperatures may be used to indicate （）.A
leaking exhaust valvesB
an overloaded cylinderC
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单选题The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.A
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oilC
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单选题A built-up exhaust valve is one in which （）.A
the stem and heads are made of different materialB
low-alloy steel is used throughoutC
a replaceable valve disk is welded to the headD
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a waste heat boilerC
a fresh water generatorD
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protect firefighters from flamesC
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单选题A virtual rise in the center of gravity of a ship may be caused by（）.A
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单选题What is a spill pipe?（）A
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A pipe under the anchor windlass leading to the chain lockerC
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check for an exhaust leakC
check the exhaust temperatureD
secure the engine
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单选题The rising of the exhaust temperature in manifold pipe may NOT result from （）.A
too great a loadingB
fouled turbochargerC
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单选题The words PIPE，BUTT，TUN AND PUNCHEON all refer to（）.A
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various lengths of timberC
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viscosities of liquid cargoes
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单选题A tool consisting of a handle and releasable chain used for turning pipe or fittings of a diameter larger than that which a pipe wrench would fit is called（）.A
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makeup tongsC
chain tongsD
pipe spinner
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