单项选择题
A.provide exhaust back pressure B.prevent exhaust smoke emissions C.power a reciprocating supercharger D.muffle exhaust gas noise
Which of the conditions listed could cause the cylinder...
单项选择题Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift?（）
A.Plugged injector nozzles B.Excessive fuel injection C.Very late injection timing D.Incorrect crankshaft clearance
If you were inspecting the valve springs on an auxiliar...
单项选择题If you were inspecting the valve springs on an auxiliary diesel engine, your best indication of impending spring failure would be （）
A.a glazed surface on the spring B.nicks in the protective coating C.a build up of sludge deposits D.cracks in the surface of the spring
Which of the routine maintenance procedure listed is re...
单项选择题Which of the routine maintenance procedure listed is required for starting air receivers?（）
A.Frequent draining of accumulated moisture B.Frequent testing of relief valves C.A close watch on temperature to prevent fluctuations in pressure D.Frequent cleaning to re move oil and foreign matter
