单项选择题
A.octane number B.cetane number C.viscosity in Saybolt seconds D.air fuel ratio
Which of the following conditions may be attributed to ...
单项选择题Which of the following conditions may be attributed to a fouled turbocharger compressor inlet screen or filter?（）
A.Decreasing scavenge air pressure B.Increasing exhaust temperatures before the turbine C.Reduction in engine speed D.All of the above
The rate of wear on a cylinder liner depends on the （）A...
单项选择题The rate of wear on a cylinder liner depends on the （）
A.quality of air filtration B.effectiveness of lubrication C.type of fuel used D.all of the above
In diesel engineering practice, the term used to expres...
单项选择题In diesel engineering practice, the term used to express the ignition quality of a particular fuel is（）
A.cetane number B.octane number C.ignition index number D.volatility point
