單項(xiàng)選擇題Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.

A.wheelhouse control station
B.engine room control station
C.captains office
D.chief engineers office


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1.單項(xiàng)選擇題Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.

A.a shortened ignition delay period
B.a lean fuel/air mixture
C.excess fuel in the combustion chamber
D.rapid vaporization of injected fuel droplets

2.單項(xiàng)選擇題Diesel engine control can be obtained by the bridge （）.

A.at any time
B.only after the engine room control station is switched to “bridge control”
C.whenever the secondary station is switched to "bridge control"
D.with the approval of the chief engineer only

3.單項(xiàng)選擇題To determine if the lube oil filter elements need changing, （）.

A.open the filter and inspect the elements
B.check the lube oil pump discharge pressure
C.check the lube oil header pressure
D.check the pressure drop across the filter

4.單項(xiàng)選擇題Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）

A.Exhaust and scavenging
B.Scavenging and compression
C.Ignition and expansion
D.Exhaust and compression

5.單項(xiàng)選擇題To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.

A.reduce the engine driven fuel pump outlet pressure
B.retard the fuel injector timing to reduce power
C.increase the fuel rack setting
D.reduce the load on the engine