单项选择题
A.high exhaust temperature and low firing pressure B.high exhaust temperature and high firing pressure C.low exhaust temperature and low firing pressure D.low exhaust temperature and high firing pressure
A faulty injection in one cylinder of an operating dies...
单项选择题A faulty injection in one cylinder of an operating diesel engine can be located by （）
A.cutting out individual injectors and noting engine performance B.checking lube oil temperature C.checking cam position D.using a timing light
What harmful condition can result if a diesel engine is...
单项选择题What harmful condition can result if a diesel engine is operated at very light loads for long periods of time?（）
A.increased carbon buildup B.burning of intake valves C.excessive firing pressures D.increased fuel consumption
Turbocharged four-stroke/cycle diesel engines utilize v...
单项选择题Turbocharged four-stroke/cycle diesel engines utilize valve overlap for（）.
A.improving cylinder scavenging B.preheating the combustion chamber C.reducing air charge density D.preventing valve wear
