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單項選擇題

With Variable Injection Timing the start of injection may be （）as the engine load is reduced.

A.advanced
B.retarded
C.kept constant
D.none of the above

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單項選擇題

With the shell and cap assembled as for running, a check must be made that the clearance between the cap and the housing （）.

A.has a nip
B.is large enough
C.is zero
D.are suitable

單項選擇題

With the crank in position in the engine, some measurements can be taken by a special bridge gauge and （）.

A.a micrometer
B.a bowl
C.a feeler gauge
D.a wrench

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