单项选择题

In the starting process of a diesel engine, the main object is to attain the compression conditions sufficient to （）

A.turn the flywheel
B.reduce friction
C.overcome inertia
D.ignite the fuel

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单项选择题

Air in the fuel lines to the fuel injection nozzles of a diesel will result in （）.

A.lower compression pressures
B.overheating without smoking
C.failure to start
D.a run away without load

单项选择题

During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）

A.Flywheel inertia
B.Admission of starting air
C.The way of the vessel
D.securing of fuel to the cylinders

单项选择题

Cold weather starting of a diesel engine may be made easier by（）

A.decreasing the compression ratio
B.using a special fuel having a high ignition temperature
C.increasing the starting air supply
D.heating the jacket water