A.metal particles loosened by wear
B.air when air cleaners are not used
C.condensation of water vapors
D.breakdown of the lubricating oil by dilution
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A.reduce wear on the valve stem
B.permit the use of alloy valve seat materials
C.reduce heat transfer from the valve seat
D.facilitate valve removal for servicing
A.place standby cooler in operation
B.reduce engine load
C.check thermostatic valve
D.clean sea water strainer
A.Low lube oil temperature
B.Dirty lube oil strainer
C.Low lube oil pressure
D.High lube oil temperature
A.improper adjustment of the bypass valve
B.a dribble in the fuel injection nozzle
C.insufficient leak-off through injection nozzle packing
D.a malfunctioning injection nozzle
A.hold the valves open
B.keep the valves off their seats until the exhaust stroke is completed
C.close the valves
D.open inlet valves when the air injection cycle begins
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