DOT DOT Out-of-Service Criteria & Enforcement 4

Question 1

A truck's service brake on one axle end has a pushrod stroke exceeding the adjustment limit by 25%. What is the correct enforcement action?

Accepted Answer

Place the vehicle out of service immediately

Answer

Any brake with a pushrod stroke exceeding the adjustment limit is an out-of-service condition requiring immediate removal from service.

Question 2

During a roadside inspection, an inspector discovers a CMV's coupling device (fifth wheel) locking mechanism does not lock when the kingpin is inserted. This condition is:

Accepted Answer

An out-of-service condition

Answer

A fifth wheel locking mechanism that fails to lock upon kingpin insertion is an OOS condition because it risks trailer separation.

Question 3

A driver subject to an out-of-service order continues driving without making required repairs. Under 49 CFR Part 386, the civil penalty for a driver who violates an OOS order can reach:

Accepted Answer

$16,000 per violation

Answer

Under 49 CFR Part 386, drivers who violate OOS orders face civil penalties up to $16,000 per violation.

Question 4

An inspector finds a CMV with a cracked frame rail that extends through the full web of the frame member. This defect:

Accepted Answer

Is an OOS condition regardless of crack length

Answer

A cracked frame rail extending through the full web of the frame member is an OOS condition regardless of crack length under CVSA criteria.

Question 5

Which of the following steering defects is NOT listed as an out-of-service condition under CVSA criteria?

Accepted Answer

A broken or missing power steering belt with audible pump noise

Answer

A broken power steering belt causing audible pump noise is a defect to monitor but does not automatically meet OOS criteria unless steering control is compromised.

DOT Inspector Certification Practice Test

DOT Inspector Certification Practice Test

DOT DOT Out-of-Service Criteria & Enforcement 4