单项选择题
A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（） Ⅰ.gap Ⅱ.side
A.Ⅰonly B.Ⅱ only C.both Ⅰ and Ⅱ D.neither Ⅰ nor Ⅱ
An acceptable means of tightening connecting rod and ma...
An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the （） Ⅰ.torque applied to each nut and bolt assembly Ⅱstretch of each nut before and after tightening
Forcing the exhaust gases form the cylinder of an opera...
单项选择题Forcing the exhaust gases form the cylinder of an operating diesel engine with the aid of a blower is known as （）
A.scavenging B.forced draft C.turbo-charging D.aspiration
In a four-stroke/cycle diesel engine, badly worn intake...
单项选择题In a four-stroke/cycle diesel engine, badly worn intake valve guides can cause excessive（）.
A.exhaust pressure B.exhaust temperatures C.cooling water temperatures D.lube oil consumption
