Advanced CDL practice exam 13 on hazmat endorsement requirements, TSA background checks, and disqualification lengths. 25 scored questions.
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These questions are for study practice only and are not official exam questions.
Question 1
1
In a well-maintained air brake system, within roughly what time frame should air pressure build from 85 psi to 100 psi with the engine at operating RPM?
Question 2
2
Why is a driver required to be especially cautious about backing a commercial vehicle whenever possible avoid it?
Question 3
3
When backing a tractor-trailer and no spotter is available, what is the recommended practice?
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