单项选择题
Lubricating oil viscosity in an operating diesel engine can be reduced by（）
A.increasing cooling water flow
B.increasing lube oil flow
C.dilution by fuel oil
D.adding SAE 70 oil
点击查看答案&解析
相关考题
-
单项选择题
A defective injector nozzle in a propulsion diesel engine can cause（）
A.engine power losses
B.smoking due to unburned fuel
C.high exhaust temperature readings
D.all of the above -
单项选择题
The major cause of problems occurring with fuel injection equipment is（）
A.incorrect replacement of barrels and plungers of jerk pumps
B.overheating of the nozzle orifices
C.cracked pump housings
D.dirt in the fuel -
单项选择题
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engineThe device most commonly used is a（）.
A.tachometer
B.pyrometer
C.dynamometer
D.calorimeter
