Commercial Motor Vehicle Inspection Quiz

In order to put a commercial motor vehicle on the road, you must first:

• complete and sign a DVIR

• ask a mechanic about the vehicle’s condition

• conduct a thorough pre-trip inspection

• perform a short test drive to verify safe operation

Before you inspect the engine compartment and front axle components:

• verify the parking brakes have been set

• put the vehicle’s keys in the ignition, depress the clutch, and start the engine

• remove the chocks from the wheels

• close the hood

What is the minimum tread depth for the steer-tire?

• 2/32 inch

• 4/32 inch

• 6/32 inch

• 8/32 inch

When inspecting the brake assembly, you should ensure:

• the slack adjusters are snug and tight

• the brake shoes have at least a quarter-inch lining

• air brake lines have no more than four cracks

• all of the above

After the initial 50-mile check, how often must you conduct additional on-the-road inspections of the cargo securement and securement devices?

• Whenever a change of duty status is made, every three hours, or 150 miles, whichever comes first

• When you stop for fuel or every 150 miles, whichever comes first

• If you are stopped for a roadside inspection and fail

• Both A and C

What is the only circumstance you are not required to inspect your cargo and load securing devices?

• If your load is sealed and you have been ordered not to open it

• If your vehicle is loaded in a way that makes cargo inspection impossible

• If your destination is less than 100-air miles from your home terminal

• Both A and B

When is it appropriate to conduct a post-trip inspection?

• Whenever it’s most convenient, but before the start of your next day

• The same exact time every evening, regardless of where you are

• At the end of every work day

• Right before 12 midnight, when your next day begins on your driver’s daily log

What items should a post-trip inspection include?

• Brakes, steering, and lighting

• Oil and tire pressure

• The same items as the pre-trip inspection except for things affected by heat

• Only items known to be defective

When do the regulations require drivers of property-carrying CMVs to complete and sign a DVIR?

• At the start of their work day for each vehicle they intend to operate during that shift

• Whenever a defect or deficiency is discovered or reported

• When a change of duty status is made, every three hours, or every 150 miles, whichever comes first

• At the end of their work day for any vehicle or equipment they used during that shift

If the previous driver found defects and noted them on a DVIR, what must you do before operating that vehicle again?

• Ensure that any items listed defective/deficient that may affect the safe operation of the vehicle were repaired.

• The original copy of the DVIR must be received at the carrier’s home terminal.

• A Master Diesel Technician must personally certify the vehicle is safe for operation.

• All of the above.