A.resisting oxidization
B.reducing friction
C.promoting moving speed
D.developing inertia
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A.give the pressure
B.give the contents
C.give the shape of the tank
D.give the accuracy level
A.inefficient cooling
B.a leaking air start valve
C.a clogged drain valve
D.a leaking air bottle
A.a flame trap
B.a relief valve
C.a fusible plug
D.a bursting cap
A.starting
B.stopping
C.to start
D.to stop
A.split pins
B.crankpins
C.dipsticks
D.circlips
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
In a simple mechanical governor, the （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
A diesel engine piston ring face is in direct contact with the （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
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 （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.