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CDL Practice Test
General Knowledge
Air Brakes
Combination Vehicles
Doubles and Triples
Tanker Vehicles
Hazardous Materials
Transporting Passengers
CDL General Knowledge Practice Test
Question 1 of 3
Why is it important to use a helper when backing?
A
To warn traffic and pedestrians that you're backing
B
To let you know when you've backed far enough
C
To provide another set of eyes to avoid blind spots
D
It isn't important to use a helper when backing
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