A.viscosity
B.density
C.velocity
D.electricity
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A.higher
B.lower
C.low
D.high
A.be less than
B.be larger than
C.be as large as
D.not be so large as
A.bosses
B.through bolts
C.machine-turned recesses
D.long studs
A.a mark
B.a bolt
C.a dowel pin
D.a measuring tool
A.gravity disc
B.centrifugal bowl
C.a stack of discs
D.main sealing ring
最新試題
Maximum horsepower of a diesel engine is attained （）.
What is the function of the thrust bearing?（）
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
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 （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Lube oil cannot be efficiently filtered if its （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.