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Traffic Laws & Regulations Flashcards

7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Traffic Laws & Regulations flashcards as text

  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?

    Answer: 11 hours

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

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

    Answer: Federal Motor Carrier Safety Administration (FMCSA)

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

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

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

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

  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:

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

    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.

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

    Answer: 0.04%

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

  6. Which of the following is considered a 'serious traffic violation' that can lead to CDL disqualification under FMCSA rules?

    Answer: Speeding 15 mph or more above the posted limit

    Speeding 15 mph or more over the posted limit is a serious traffic violation under 49 CFR 383.51 that triggers CDL disqualification upon multiple offenses.

  7. A driver trainer is teaching a student about right-of-way at an uncontrolled intersection. Which vehicle has the right-of-way?

    Answer: The vehicle on the left always yields to the vehicle on the right

    At uncontrolled intersections, the vehicle on the left must yield to the vehicle approaching from the right.