单项选择题
Maintaining the close tolerances in diesel fuel pumps and injectors requires the use of（）.
A.fuel/water separators
B.day tanks
C.injector test stand
D.fuel filters
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相关考题
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单项选择题
Lubricating oil should be changed on a heavy duty diesel engine when（）.
A.it gets dark in color
B.a sample rubbed between fingers feels thin
C.it has been in use for a specified interval
D.it no longer supports combustion -
单项选择题
If your propeller is racing in rough weather，you should（）.
A.decrease your engine speed
B.ignore it
C.increase your engine speed
D.stop your engine until the rough weather passes -
单项选择题
If you are unable to stop a diesel engine by any other means，you should（）.
A.discharge a CO2 extinguisher in the air inlet
B.pull off the distributor cap
C.secure the jacket water
D.secure the starting air supply valve
