單項(xiàng)選擇題A turbocharged diesel engine will have an intake manifold pressure()

A.constantly decreasing as engine load increase
B.constantly increasing as the amount of supercharging increases
C.approximately equal to exhaust manifold pressure at all times
D.approximately equal to atmospheric pressure at all times


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1.單項(xiàng)選擇題A leaking diesel engine fuel injector will cause()

A.prolonged maintenance intervals
B.improved atomization
C.greater fuel economy
D.incomplete combustion

2.單項(xiàng)選擇題The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually()

A.greater than the average exhaust manifold pressure
B.less than the average exhaust manifold pressure
C.greater at the turbine wheel than at the impeller
D.greater at reduced engine speed

3.單項(xiàng)選擇題A sudden decrease in the diesel engine lube oil viscosity could be an indication of()

A.loss of additives from the lube oil
B.carbon deposits in the lube oil
C.excessive centrifuging
D.excessive fuel dilution

4.單項(xiàng)選擇題Dirt lodged on the nozzle valve seat of a fuel injection nozzle will cause()

A.erosion and cratering of the nozzle orifices
B.fuel leakage into the nozzle drain line
C.fuel leakage before and after injection
D.insufficient fuel delivery though that nozzle

5.單項(xiàng)選擇題Diesel engine cylinder head test cocks are used to ()

A.check cylinder lubrication
B.connect the pressure indicator pressure
C.test cylinder heads
D.connect the exhaust gas pyrometers

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The treatment of the fuel oils involves storage, heating, filtering and()

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The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()

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If two A.C.generators are to be operated in parallel, the load is distributed evenly by()

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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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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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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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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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When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish

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

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