A.high steam pressure in the boiler
B.abnormally high feed water temperature
C.abnormally high boiler water temperature
D.steam demand exceeding feed pump capacity
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A.Clogged air intake falters
B.Piston blow-by
C.A defective after-cooler
D.Faulty exhaust valves
A.Splash
B.Gravity
C.Pressure
D.Bypass
A.scavenging action of the piston
B.piston type vacuum pump taking suction off a differential manometer
C.gland exhausting manometer
D.crankcase exhaust fan
A.prevent soot fires in the exhaust system
B.prevent exhaust gas erosion of the tubes
C.increase the velocity of exhaust gas flow
D.increase the rate of heat transfer
A.a spindle lubricator
B.an oil jet
C.internal splashing
D.drilled passages in the crankshaft
最新試題
In using reduction gears to obtain efficient propeller speeds, （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
To determine if the lube oil filter elements need changing, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.