Front
What is the primary reason for doing a vehicle inspection?
Back
Safety
Safety for yourself and for other road users is the most important reason.
Public Deck
CDL General Knowledge Test Prep
Prepare for your CDL exam with 50 flashcards covering vehicle inspection, safe driving, cargo, and regulations.
AnyFlashcards50 cards
Preview
Front
What is the minimum tread depth for front tires?
Back
4/32-inch
All other tires require at least 2/32-inch tread depth.
Front
What do rust streaks around wheel nuts usually indicate?
Back
The nuts may be loose
Check for tightness and signs of 'shiny' metal or cracks.
Front
How many red reflective triangles must you carry for emergencies?
Back
Three
These must be used to warn other drivers if you are stopped on the road.
Front
What are you looking for when checking the steering system?
Back
Missing nuts, bolts, or cotter keys
Also check for bent, loose, or broken parts like the steering column or gear box.
Front
What is a major danger of a cracked or broken exhaust system?
Back
Carbon monoxide poisoning
Poisonous fumes can enter the cab or sleeper berth.
Front
How many leaf springs can be missing or broken before a vehicle is put out of service?
Back
One-fourth (25%) or more
Any leaf spring that is shifted or missing is dangerous.
Front
What three pieces of emergency equipment must be in the cab?
Back
Fire extinguisher, spare electrical fuses, and three reflective triangles
Fuses are only required if the vehicle does not use circuit breakers.
Front
When should you check your tires during a trip?
Back
Every time you take a break
Check for heat by touching them and ensure pressure is correct.
Front
What should you check on the brake drums and shoes?
Back
Cracks, thinness, or oil/grease contamination
Brake shoes should not be worn dangerously thin.
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