Control & Operation第 79 / 120 题
Why should you avoid coasting in neutral while driving a commercial vehicle?
a.It wears out the clutch pedal spring
b.It causes the tachometer to read incorrectly
c.You lose engine braking and the ability to accelerate out of a hazard, and it is illegal in many states
d.It automatically disables the ABS
解析
In neutral the engine no longer helps control speed and you cannot power away from a developing hazard, which is why most states prohibit it. Clutch springs, tachometer accuracy, and ABS operation are unrelated to being in neutral.
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