单项选择题

（）is not a feature of the electronic controlled engines.

A.Lower fuel consumption
B.Better balanced cylinder power
C.A shorter overhaul period
D.Less smoke emission

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

If a camshaft-less engine has a normal injection pressure at rated speed, the injection pressure will be at slow speed（）

A.too low
B.a little lower
C.a little higher
D.exactly the same

单项选择题

If a cam-controlled engine has a normal injection pressure at rated speed,the injection pressure will be（）at slow speed.

A.a little lower
B.a little higher
C.too low
D.exactly the same

单项选择题

The main purpose of changing main engine to electronic controlled is not to（）

A.control fuel injection time more precisely
B.control fuel injection rate more precisely
C.meet the environmental requirements
D.meet high engine speed requirements