CDT Traffic Laws & Regulations 2

Question 1

Under federal Hours of Service regulations, what is the maximum number of hours a property-carrying CMV driver may drive after 10 consecutive hours off duty?

Accepted Answer

11 hours

Answer

FMCSA property-carrying drivers may drive up to 11 hours after taking 10 consecutive hours off duty.

Question 2

Which agency establishes the Federal Motor Carrier Safety Regulations (FMCSRs) that CDT candidates must know?

Accepted Answer

Federal Motor Carrier Safety Administration (FMCSA)

Answer

The FMCSA, a division of the U.S. DOT, issues and enforces the FMCSRs governing commercial motor vehicle operations.

Question 3

A driver trainer observes a student make an improper left turn at a controlled intersection. Which regulation governs required left-turn positioning?

Accepted Answer

Drivers must approach from the lane nearest the center of the road

Answer

Uniform Vehicle Code and state laws require left turns to be made from the lane nearest and to the right of the centerline.

Question 4

When a school bus displays flashing red lights and its stop arm is extended on a two-lane undivided road, traffic in BOTH directions must:

Accepted Answer

Stop and remain stopped until the lights are off and arm retracted

Answer

On an undivided two-lane road, all approaching vehicles from either direction must stop when a school bus activates its red signals and stop arm.

Question 5

What blood alcohol concentration (BAC) level is the per se legal limit for commercial motor vehicle drivers under federal law?

Accepted Answer

0.04%

Answer

Federal law (49 CFR 382.201) sets a 0.04% BAC per se limit for CDL holders operating CMVs, half the standard limit.

(CDT) Certified Driver Trainer Practice Test

(CDT) Certified Driver Trainer Practice Test

CDT Traffic Laws & Regulations 2