單項選擇題An operating turbocharged diesel engine that suddenly loses power, is due to a/an（）

A.restricted turbocharger air intake
B.oil leak into the turbocharger
C.dribbling injector
D.low fuel viscosity


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2.單項選擇題Which of the turbo-charging systems listed operates with the least average back pressure in the exhaust manifold?（）

A.Constant volume
B.Constant pressure
C.Pulse pressure
D.Radial flow

3.單項選擇題Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）

A.Water discharging from the water outlet of the lube oil purifier
B.Fuel oil discharging from the water outlet of the lube oil purifier
C.Lube oil discharging from the water outlet of the lube oil purifier
D.A change in the lube oil viscosity

4.單項選擇題If a single cylinder relief valve on a diesel engine lists frequently while the engine is running, the cause may be an （）

A.excessively late injection timing for each cylinder
B.incorrectly adjusted intake valve timing
C.incorrectly adjusted fuel injector
D.incorrectly adjusted intake valve clearance

5.單項選擇題Which of the diesel engine cylinder liners listed has internal cooling water passages?（）

A.Internally finned liner
B.Externally finned liner
C.Wet liner
D.Integral water-jacket liner

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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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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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