A.the latter
B.latter
C.former
D.the former
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A.chromed
B.welded
C.galvanized
D.bolted
A.a high exhaust temperature
B.a high smoky exhaust
C.a high output
D.a high compression
A.packings
B.piston rings
C.distributor rings
D.scraper rings
A.bridges
B.recesses
C.rears
D.ridging
A.is usually cooled by sea water
B.can be replaced when worn out
C.is in direct contact with the water in the bore of the cylinder
D.can t expand when heated
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Lube oil cannot be efficiently filtered if its （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
White smoke exhausting from an operating diesel engine may indicate （）.
The function of diesel engine piston compression rings is to （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
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 （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The main purpose of the piston oil scraper rings is to （）.