单项选择题X 纠错
A.The cetane number affects the amount of injection lag
B.The cetane number is an indication of the fuels viscosity
C.Ignition lag is reduced with fuels having a high cetane number
D.The cetane number is of little significance in the combustion process
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单项选择题
A.improved cold weather starting
B.excessive fuel oil consumption
C.reduced ignition lag
D.smoother engine operation
单项选择题
A.indicates the amount of abrasive material in the fuel
B.affects the starting ability of a cold engine
C.determines the amount of fuel penetration engine
D.affects the compression ratio of an operating engine
单项选择题
A.dial indicator
B.outside caliper
C.bridge gauge
D.tram rod
单项选择题
A.telescoping
B.ring ‘snap’ gauge
C.inside vernier caliper
D.outside micrometer
单项选择题
A.cetane number
B.volatility point
C.viscosity index
D.octane number
单项选择题
A.specific gravity
B.cetane number
C.viscosity
D.calorific valve
单项选择题
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
单项选择题
A.ignition quality of the fuel
B.calorific value of the fuel
C.flash point of the fuel
D.rate of fuel consumption
单项选择题
A.Viscosity
B.acid content
C.heating value
D.ignition quality
单项选择题
A.Viscosity
B.Sulfur content
C.Pour point
D.Cetane number