CDL Pre-Trip Inspection

Question 1

When is a CDL driver required to perform a pre-trip inspection?

Accepted Answer

Before each trip

Answer

Federal regulations require CDL drivers to inspect their vehicle before each trip to ensure it is safe to operate.

Question 2

During a pre-trip inspection of the engine compartment, which items must be checked?

Accepted Answer

Oil level, coolant level, and condition of belts and hoses

Answer

The engine compartment check must include oil level, coolant level, power steering fluid, and the condition of belts and hoses.

Question 3

What is the acceptable oil level when checking a commercial vehicle's dipstick during a pre-trip inspection?

Accepted Answer

Within the normal operating range marked on the dipstick

Answer

The oil level must be within the normal operating range as indicated on the dipstick to ensure proper engine lubrication and prevent engine damage.

Question 4

What should you inspect when checking the steering mechanism during a pre-trip inspection?

Accepted Answer

Excessive play, loose or missing nuts, and bent or damaged components

Answer

A proper steering check includes inspecting for excessive play (no more than 10 degrees of free movement) and checking for damaged, loose, or missing components.

Question 5

What is the correct method to check for fluid leaks during a pre-trip inspection?

Accepted Answer

Look for puddles under the vehicle and check hoses, tanks, and connections for wet spots

Answer

You should look under the vehicle for puddles and inspect all hoses, tanks, and connections for wet spots that indicate active fluid leaks.

CDL Practice Test

CDL Practice Test

CDL Pre-Trip Inspection