单项选择题
A.a worn cylinder B.broken piston rings C.any of A and B D.none of the above
Leaky exhaust valve will result in which of the followi...
Leaky exhaust valve will result in which of the following?（） (1) high exhaust temperature; (2) low compression pressure; (3) low firing pressure.
A.(1) and (2) B.(1) only C.(2) only D.(1),(2) and (3)
Large marine diesel engines of crosshead construction g...
单项选择题Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.
A.cylinder liners and piston rings B.main bearings C.crankpin bearings D.turboblower
Keep compartment （） as the gas given off can be dangero...
单项选择题Keep compartment （） as the gas given off can be dangerous.
A.well ventilated B.well clean C.in good order D.more room
