单项选择题The fuel pipes and ducts should be blown with ().

A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the () systems.

A.fuel treatment
B.fuel combustion
C.fuel injection
D.fuel separating

3.单项选择题The fuel injector pump is operated by () which drives the plunger up and down.

A.a separate motor
B.a cam
C.a generator
D.a chain

5.单项选择题The fresh air coming in through the inner air ports, is compressed by() to a higher pressure.

A.the cylinder head
B.the cross-head
C.the moving piston
D.the stationary piston

9.单项选择题The fine filters will be arranged () one can be cleaned while the other is operating.

A.in order to
B.because of
C.so that
D.so as to

10.单项选择题The film of oil between the rings and the liner is not only essential for the lubrication but also () achieving a gas seal.

A.play a great part on
B.run a role in
C.plays an important part in
D.acts as important part at