ignition quality of the fuel
high heating value of the fuel
amount of carbon residue after combustion
internal flow resistance in the injectors
第1题：
Which product is volatile ________．
A.Benzene
B.Diesel fuel
C.Coal tar
D.Heavy industrial fuel oil
第2题：
water in the fuel
insufficient fuel for combustion
clogged air intake passages
burning lubricating oil
第3题：
Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel engine?
A.Viscosity
B.Sulfur content
C.Pour point
D.Cetane number
第4题：
Sludge
Gasoline
Fuel oil
Lube oil
第5题：
Quantity of fuel injected tends to be decreased
Quantity of fuel injected will always be increased
Start of injection tends to be advanced
Duration of injection will always greater
第6题：
Excessive cylinder liner
water in the fuel system
Cracked cylinder liner
Leaking lube oil cooler
第7题：
caused by retarded injection timing
caused by a mechanical defect in one cylinder
caused by high fuel injection pressures
normal for these conditions
第8题：
One of the factors limiting the amount of toad which can be put on a modem marine diesel engine is the_______.
A.governor sensitivity
B.exhaust temperature
C.fuel injection pressure
D.speed of the cam shaft
第9题：
increasing the quantity of starting air
increasing the lube oil pressure
heating the engine fuel supply
heating the engine coolant
第10题：
increase thermal efficiency
cause clogging of the fuel system
increase the ability of the engine to start in cold weather
produce corrosion in the cylinder and exhaust system at low loads