A.piston skirt
B.pinion
C.crosshead
D.compression rings

A.cylinder pressure
B.flame intensity
C.exhaust gas temperature
D.crankshaft axial alignment

A.decreased compression pressure
B.increased lube oil pressure
C.lower lube oil temperature
D.excessive leakage past the piston rings

A.dwell-tachometer
B.exhaust gas pyrometer
C.fuel flow rate mete
D.exhaust gas analyzer

A.worn or broken cylinder liner sealing rings
B.high cooling water temperature
C.worn or broken piston rings
D.low fuel oil pressure

A.pyrometer
B.bourdon gauge
C.pneumercator
D.manometer

A.a leaking fuel injector nozzle
B.a clogged air filter
C.excessively early fuel injection
D.malfunctioning valves

A.crankcase
B.piston
C.cylinder liner
D.crank cheek

A.discharge exhaust gases and smoke
B.furnish energy to the turbocharger
C.reduce engine room noise
D.all of the above

A.residual carbon deposits
B.lube oil viscosity breakdown
C.uneven heat expansion of the rings
D.uneven heat expansion of the piston

A.one-half engine speed
B.the same as engine speed
C.twice engine speed
D.four times engine speed