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单选题
If over a period of weeks the air-box pressure of a turbo-charged, diesel engine, operating at full load, appears to be dropping off, the cause can be （）.
A
open air-box drains
B
loss of cooling water to the diffuser
C
gradual fouling of the air filters
D
improperly timed exhaust valves
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更多 “单选题If over a period of weeks the air-box pressure of a turbo-charged, diesel engine, operating at full load, appears to be dropping off, the cause can be （）.A open air-box drainsB loss of cooling water to the diffuserC gradual fouling of the air filtersD improperly timed exhaust valves” 相关考题
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