单项选择题

An advantage of aluminum pistons, when compared to cast iron pistons is （）.

A.greater high temperature strength
B.better heat conductivity
C.greater weight per cubic inch
D.increased resistance to wear

<上一题 目录 下一题>
热门 试题

单项选择题
Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?（）

A.Atomization
B.Metering
C.Effective stroke
D.Penetration
单项选择题
Successful combustion inside the cylinders of a diesel engine is dependent upon （）.

A.fine atomization
B.high temperature
C.good mixing of fuel and air
D.all of the above
相关试题