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單項選擇題

The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.

A.a strain tank
B.a head tank
C.a service tank
D.a strainer

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單項選擇題

The needle valve will open when the fuel pressure acting on the needle valve （） exerts a sufficient force to overcome the spring compression.

A.tape face
B.tapered face
C.surface
D.thinner face

單項選擇題

The needle valve in the injector （） at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.

A.will lift
B.will be lifted
C.will close
D.will be closed

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