FMCSA Vehicle Maintenance and Inspection Requirements 2

Question 1

Which document must accompany a CMV that has passed its annual periodic inspection?

Accepted Answer

An inspection report or decal showing the inspection date

Answer

A DOT registration certificate

Answer

A state safety certificate

Answer

A carrier's insurance form

Question 2

What is the maximum allowable brake lining thickness for a drum brake before it is considered defective?

Accepted Answer

Less than 1/4 inch at the thinnest point

Answer

Lining worn to the shoe

Answer

Any visible wear

Answer

Less than 1/8 inch at the thinnest point

Question 3

Under FMCSA rules, a DVIR that shows no defects must be signed by:

Accepted Answer

The driver only

Answer

The carrier only

Answer

Neither — no defects means no signature needed

Answer

A certified mechanic

Question 4

What is the FMCSA-required minimum tire pressure for CMV tires?

Accepted Answer

There is no federal minimum — manufacturer spec applies

Answer

80 psi for all tires

Answer

60 psi for all tires

Answer

Whatever is stamped on the sidewall

Question 5

Which lighting defect would result in an out-of-service order for a CMV?

Accepted Answer

Required headlamp inoperative

Answer

One non-required interior light out

Answer

Cargo light not working

Answer

License plate light flickering

Question 6

How many days does a motor carrier have to correct a defect reported on a DVIR before operating the vehicle?

Accepted Answer

The defect must be repaired before the vehicle is operated again

Answer

Within 24 hours

Answer

Within 48 hours

Answer

Within 7 business days