A.be less than
B.be larger than
C.be as large as
D.not be so large as
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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
A.the guideway
B.the piston rod
C.the crosshead shoes
D.the interlocked circlip
A.the scavenging air
B.the exhaust gases
C.the mixed air
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最新試題
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Proper filtering and straining of fuel oil is important because the （）.
Routine monitoring of a diesel engine should include （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
An automated diesel engine should normally shut down due to （）
A thrust bearing is used with a propulsion diesel engine to （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
What is the function of the thrust bearing?（）
The minimum speed an engine must attain before ignition can occur depends upon （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）