CDL Permit Test Verified Answers
What is the most important reason for doing a vehicle inspection? ️To ensure the vehicle is safe to
drive and roadworthy.
What things should you check during a trip? ️Tires, brakes, lights, connections to trailer, trailer
coupling devices, cargo secureme...
What is the most important reason for doing a vehicle inspection? ✔️To ensure the vehicle is safe to
drive and roadworthy.
What things should you check during a trip? ✔️Tires, brakes, lights, connections to trailer, trailer
coupling devices, cargo securement devices (tarps, canvass, or straps).
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.
Name some suspension system defects. ✔️Missing or broken leaf springs, leaking shock absorbers,
broken spring hangers, cracked or damaged torque rod, u-bolts, spring hangers, or other axle
positioning parts.
Name three kinds of emergency equipment you must have. ✔️Fire extinguisher, 3 red triangles, spare
fuses, flare.
What is the minimum tread depth for front tires? For other tires? ✔️4/32" for front tires, 2/32" for all
others.
Name some things you should check on the front of your vehicle during the walk-around inspection.
✔️Condition of axle and steering system (check for looseness), condition of the windshield (clean/dirty,
damaged), wiper arms and blades, and lights & reflectors (amber at front for clearance and reflectors,
white or amber for turn signals).
What should wheel bearing seals be checked for? ✔️Leaks.
How many red reflective triangles should you carry? ✔️Three.
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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