單項(xiàng)選擇題

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?（）

A.Defective temperature controls in the system
B.Cavitation in the cooling water pump
C.Opened vent in the cooling system
D.Restricted water passages in the engine

你可能感興趣的試題

單項(xiàng)選擇題

If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.

A.cylinder compression pressure may not be high enough
B.cylinder compression temperature may be too high
C.fuel oil injection pressure may not be high enough
D.scavenge and purge process is incomplete

單項(xiàng)選擇題

Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will （）.

A.reduce engine horsepower output
B.aid in silencing the exhaust noise
C.increase the mean effective pressure
D.contribute to effective cylinder scavenging

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?（）

你可能感興趣的試題

If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.

Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will （）.