单项选择题
Which of the following statements is true concerning the cetane number of diesel fuel?（）
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
点击查看答案&解析
相关考题
-
单项选择题
Fuel oil having a low cetane rating could result in（）
A.improved cold weather starting
B.excessive fuel oil consumption
C.reduced ignition lag
D.smoother engine operation -
单项选择题
The ignition quality of a fuel oil is an important operational consideration because it（）
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
On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）
A.dial indicator
B.outside caliper
C.bridge gauge
D.tram rod
