单项选择题Permitting a diesel engine fuel oil day tank to run dry can cause ()

A.overheated injection pumps
B.water condensation in the cylinders
C.fuel dilution of the lube oil
D.air in the fuel system


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题Water in the fuel can prevent the engine from starting, prevent it from developing full power, or ()

A.run at an irregular speed
B.create high lube oil temperature
C.cause the engine to over-speed
D.cause blue smoke in the exhaust

2.单项选择题In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs ()

A.once every crankshaft revolution
B.once every two crankshaft revolutions
C.once every piston stroke
D.twice every piston stroke

3.单项选择题When a ship is involved in an oil pollution incident in China, the ship must report without delay to()

A.China Maritime Administration
B.the company
C.the cargo owner
D.ship owner

4.单项选择题Faulty operation of diesel engine fuel injection nozzles can be directly caused by ().

A.water in the fuel oil supply
B.excessive fuel nozzle holder cooling
C.a distorted fuel spray pattern
D.leakage past the plunger into the oil drain

5.单项选择题Faulty operation of diesel engine fuel injection nozzles can be directly caused by ().

A.water in the fuel oil supply
B.excessive fuel nozzle holder cooling
C.a distorted fuel spray pattern
D.leakage past the plunger into the oil drain

7.单项选择题A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a ()

A.low TBN value
B.high alkaline reserve
C.low flash point
D.high pour point

8.单项选择题In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move()

A.up and draw in a fresh air charge
B.down to burn off fuel
C.down to compress the fuel air charge
D.up and force out the exhaust gases

9.单项选择题A fuel injection valve opening at pressure lower than normal will result in().

A.late fuel injection
B.early fuel injection
C.high exhaust temperature from that cylinder
D.decreased effective stroke from that injector