单项选择题

Bridge gauge can be used to measure （） of a diesel engine.

A.diameters of journals
B.deflections of crankwebs
C.diameters of crankpins
D.none of the above

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单项选择题

A.the cylinder cover is cracked
B.the injector holes is clogged
C.the cams are not properly set
D.fuel pump is leaking

单项选择题

A.too low lead
B.water in fuel
C.too tight spring
D.leakage

单项选择题

A.the indicators
B.the starting valves
C.the cylinder lubricators
D.the turning gear