A.Leaking seal ring
B.Insufficient heat transfer from the exhaust valves
C.Block cooling water passages to the head
D.Excessive scavenging air provided to the engine
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A.ignition quality of the fuel
B.calorific value of the fuel
C.flash point of the fuel
D.rate of fuel consumption
A.Viscosity
B.acid content
C.heating value
D.ignition quality
A.Viscosity
B.Sulfur content
C.Pour point
D.Cetane number
A.Exhaust energy would draw excess air
B.The inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increase
C.Exhaust gas pumping losses are increased due to turbine windage
D.Exhaust gas back pressure falls slightly due to increased nozzle action
A.use of low viscosity oil in cold weather
B.increased moisture content of inlet air in cold weather
C.increased drag of pistons and bearings due to increased oil viscosity
D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
A.octane number
B.cetane number
C.viscosity in Saybolt seconds
D.air fuel ratio
A.Decreasing scavenge air pressure
B.Increasing exhaust temperatures before the turbine
C.Reduction in engine speed
D.All of the above
A.quality of air filtration
B.effectiveness of lubrication
C.type of fuel used
D.all of the above
A.cetane number
B.octane number
C.ignition index number
D.volatility point
A.antiknock characteristics
B.ignition qualities
C.rates of vaporization
D.viscosity
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