单项选择题
The rising of the exhaust temperature in manifold pipe may NOT result from （）.
A.too great a loading
B.fouled turbocharger
C.bad combustion
D.excessive air
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相关考题
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单项选择题
The rim of the piston may contain cut-out portions to accommodate （） when they open.
A.the gases
B.the air
C.the valves
D.the injectors -
单项选择题
The removal of （） from lubricating oil will reduce engine wear and possible breakdowns.
A.contaminating water
B.contaminated additives
C.contaminated fuel
D.contaminating impurities -
单项选择题
The remaining oil in the lubricating pipes and ducts should be blown out with （）.
A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
