單項選擇題The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its ().

A.BDC
B.TDC
C.BBDC
D.ATDC


您可能感興趣的試卷

你可能感興趣的試題

2.單項選擇題The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known as ().

A.mechanical lubricator
B.lubrication function
C.forced feed system
D.bearing lubrication

3.單項選擇題The cleaned heated oil, after passing through the centrifuges, is to be pumped to a ().

A.settling tank
B.service tank
C.ballast tank
D.drain tank

4.單項選擇題The cast iron guide-ways for () are attached to the top section and seal off the crankcase.

A.the connecting rod
B.the cross-head
C.the piston rod
D.the air box

5.單項選擇題The cast iron()for the cross-head are attached to the top section and seal off the crankcase.

A.cylinder cover
B.cross-head shoes
C.guide-ways
D.scavenging boxes