单项选择题
Metal particles accumulated from the wearing of components in a diesel engine can result from lube oil that has been contaminated with（）.
A.abrasive particles
B.metallic oxides
C.corrosive acids
D.any or all of the above
点击查看答案&解析
相关考题
-
单项选择题
In a diesel engine, late fuel injection is indicated by black or gray exhaust smoke with（）
A.low firing pressure
B.low exhaust temperature
C.mechanical knock in each cylinder
D.fuel knock in each cylinder -
单项选择题
The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）
A.dry liner
B.wet liner
C.jacket liner
D.corrugated liner -
单项选择题
Which of the listed devices could be used as a substitute for a ring grooving tool?（）
A.Steel brush
B.Fine emery cloth or steel wool
C.A section of the removed compression ring
D.A case hardened scraper
