單項選擇題The () of the main shaft should be measured with a ().

A.clearance;calipers
B.sinking;bridge gauge
C.diameter;bridge gauge
D.clearance;lead wire


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2.單項選擇題“Stand by engine” means ().

A.prepare to stop the engine
B.assemble an engine on its bedplate
C.make an engine ready for starting
D.make an engine run steadily

3.單項選擇題Smaller engines can be made more rigid than large ones and may not have ().

A.through bolts
B.turbo-chargers
C.bed plates
D.columns

4.單項選擇題Smaller engines can be made more rigid than large ones and may not have ().

A.through bolts
B.dividing walls
C.sloping surfaces
D.relative angles

5.單項選擇題Smaller engines can be made more rigid than large ones and may not have ().

A.connecting rods
B.crankshaft
C.crankcase
D.through bolts