單項(xiàng)選擇題The bed-plate is secured in the longitudinal direction by means of bolts known as ().

A.end-chock bolts
B.side-chock bolts
C.through bolts
D.tie rods


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1.單項(xiàng)選擇題The bearing shells depend on the accuracy of () to held them in a truly circular shape.

A.the gap
B.the clearance
C.the bore
D.the housing

3.單項(xiàng)選擇題The auxiliary engine and a cgenerator can be connected with ().

A.cam
B.crosshead
C.bulge
D.coupling

4.單項(xiàng)選擇題The amount of lubricating oil in the drain tank should be checked by ().

A.measuring
B.sounding rod
C.metering
D.weighting

5.單項(xiàng)選擇題The abbreviation TDC means ().

A.top dead center
B.temperature difference center
C.time delay dock
D.top diesel company