單項選擇題In four strokes engine, the cycle of events is completed in four strokes of ().

A.the cylinder
B.the crankshaft
C.the piston
D.the cross-head


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題In each cylinder cover there are two or three holes for ()

A.the exhaust valves
B.the fuel valves
C.indicator cocks
D.the fuel pumps

2.單項選擇題In each cylinder cover is a large central opening for mounting ()

A.the indicating cock
B.the starting valve
C.air inlet valve
D.the exhaust valve

3.單項選擇題In an ordinary four-stroke engine the exhaust valves open ()

A.after TDC
B.before TDC
C.after BDC
D.before BDC

4.單項選擇題In an ordinary diesel engine the fuel injection begins ()

A.after TDC
B.before TDC
C.after BDC
D.before BDC