轮机英语船舶动力装置章节练习(2019.04.29)

单项选择题
Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?（）
A.The amount of fuel injected will be increased
B.The start of injection will be retarded
C.The nozzle will permit fuel to dribble
D.The spray pattern will be distorted
单项选择题
The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler （）
A.salinity is abnormally high
B.steam demand is too high
C.water level is abnormally low
D.feedwater flow is low
单项选择题
The cross-head shoes are white metal lined, grooves being cut horizontally on the face of the white metal to ensure （）.
A.an adequate supply of lube oil
B.an adequate supply of fuel oil
C.an adequate supply of turbine oil
D.an adequate supply of cylinder oil
单项选择题
Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.
A.to protect
B.to guard
C.to maximize
D.to minimize
单项选择题
A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct （）.
A.compression pressure
B.compression test
C.compression ratio
D.compression clearance
单项选择题
Increasing differential pressure of an oil filter indicates that （）
A.it is dirty
B.it is leaky
C.it has been renewed
D.all the above
单项选择题
In the four-stroke engine, it takes （） to make one power stroke.
A.one propulsion
B.two propulsions
C.two revolutions
D.one revolution
单项选择题
Which of the following can be obtained by means of an indicator card?（）
A.the peak pressure in a cylinder
B.the temperature of the cooling water
C.the fuel consumption
D.none of the above
单项选择题
（） is secured by means of side-chock bolts and end-chock bolts.
A.The bedplate
B.The column
C.The main bearing
D.The double bottom
单项选择题
Oil will lubricate these parts （） effectively than water.
A.much
B.more
C.most
D.less