CDL Permit Test Questions and Answers
1. What is the most important reason for doing a vehicle
inspection>>>>To ensure the vehicle is safe to drive and
roadworthy.
2.What things should you check during a trip>>>>Tires, brakes, lights,
connections to trailer, trailer coupling devices, cargo securement
devices(tarps, canvass, or straps)
3. Name some key steering system parts>>>>Steering wheel, steering
shaft, gear box, hydraulic fluid reservoir, pitman arm, drag link,
steering knuckle, spindle, power steering cylinder, steering arm, tie
rod
4. Name some suspension system defects>>>>Missing or broken leaf
springs, leaking shock absorbers, broken spring hangers, torque rod
(arm, ubolts, spring hangers, or other axle positioning parts) cracked
or damaged
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, 5. Name three kinds of emergency equipment you must have>>>>Fire
extinguish- er, 3 red triangles, spare fuses, flare
6. What is the minimum tread depth for front tires? For other
tires>>>>4/32" for front tires, 2/32" for all others
7. Name some things you should check on the front of your vehicle during
the walk around inspection>>>>Condition of axle and steering system
(grab for looseness), condition of the windshield (clean/dirty,
damaged, wiper arms, wiper blades, and lights & reflectors (amber at
front for clearance and reflectors, white or amber for turn signal)
8. What should wheel bearing seals be checked for>>>>Leaks
9. How many red reflective triangles should you carry>>>>Three
10.How do you test hydraulic brakes for leaks>>>>Pump three times,
hold brake down for 5 seconds. Brakes should hold, if not there is a
problem.
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1. What is the most important reason for doing a vehicle
inspection>>>>To ensure the vehicle is safe to drive and
roadworthy.
2.What things should you check during a trip>>>>Tires, brakes, lights,
connections to trailer, trailer coupling devices, cargo securement
devices(tarps, canvass, or straps)
3. Name some key steering system parts>>>>Steering wheel, steering
shaft, gear box, hydraulic fluid reservoir, pitman arm, drag link,
steering knuckle, spindle, power steering cylinder, steering arm, tie
rod
4. Name some suspension system defects>>>>Missing or broken leaf
springs, leaking shock absorbers, broken spring hangers, torque rod
(arm, ubolts, spring hangers, or other axle positioning parts) cracked
or damaged
1/5
, 5. Name three kinds of emergency equipment you must have>>>>Fire
extinguish- er, 3 red triangles, spare fuses, flare
6. What is the minimum tread depth for front tires? For other
tires>>>>4/32" for front tires, 2/32" for all others
7. Name some things you should check on the front of your vehicle during
the walk around inspection>>>>Condition of axle and steering system
(grab for looseness), condition of the windshield (clean/dirty,
damaged, wiper arms, wiper blades, and lights & reflectors (amber at
front for clearance and reflectors, white or amber for turn signal)
8. What should wheel bearing seals be checked for>>>>Leaks
9. How many red reflective triangles should you carry>>>>Three
10.How do you test hydraulic brakes for leaks>>>>Pump three times,
hold brake down for 5 seconds. Brakes should hold, if not there is a
problem.
2/5
