Commercial Driving Pre-Trip Inspection

Question 1

What is the first area a driver should inspect during a pre-trip inspection?

Accepted Answer

The engine compartment, starting with a general walk-around approach to the vehicle

Answer

A systematic pre-trip begins with approaching the vehicle and doing a general overview, then starting with the engine compartment to check fluid levels, belts, hoses, and leaks.

Question 2

During a pre-trip inspection, what should you check about the tires?

Accepted Answer

Air pressure, tread depth, sidewall condition, proper inflation, and signs of uneven wear

Answer

Tire inspection covers multiple aspects: proper inflation, adequate tread depth (4/32 front, 2/32 others), no cuts, bulges, or foreign objects, and wear patterns indicating alignment issues.

Question 3

What engine compartment items must be inspected during a pre-trip?

Accepted Answer

Oil level, coolant level, power steering fluid, belts, hoses, wiring, water pump, air compressor, and leaks

Answer

A thorough engine compartment inspection covers all fluid levels, belt tension and condition, hose condition, wiring integrity, component operation, and any signs of leaks.

Question 4

What brake components should be checked during the pre-trip inspection?

Accepted Answer

Brake drums, linings, hoses, chambers, slack adjusters, and air lines for leaks or damage

Answer

Visual inspection of brake components can identify worn linings, cracked drums, leaking chambers, out-of-adjustment slack adjusters, and damaged air lines before they cause failures.

Question 5

What is the purpose of checking the steering system during a pre-trip?

Accepted Answer

To verify no excessive play in the steering wheel, check power steering fluid and hoses, and inspect steering components for damage

Answer

Steering system checks ensure the driver has proper vehicle control. Excessive play, fluid leaks, or damaged components could lead to loss of steering control.

Commercial Driving Practice Test

Commercial Driving Practice Test

Commercial Driving Pre-Trip Inspection