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
A CDT candidate reviews a scenario involving a driver who runs a red light. Which legal doctrine makes a driver liable for all foreseeable consequences of that violation?
Answer: Negligence per se
Negligence per se holds that violating a traffic law (like running a red light) automatically establishes the breach element of negligence if the violation causes harm.
Under FMCSA regulations, how long must a CDL driver keep copies of inspection reports (DVIRs) in the vehicle?
Answer: 24 hours or until defects are repaired
49 CFR 396.11 requires the driver to retain the signed DVIR in the vehicle for 24 hours or until all defects noted are repaired, whichever comes first.
When teaching right-of-way at a T-intersection, a CDT instructor should explain that the vehicle on the terminating road (the bottom of the T) must yield to:
Answer: All traffic on the through road
At a T-intersection, the driver on the dead-end road must yield to all vehicles traveling on the continuous through road.
A state posts a regulatory sign that reads 'NO TURN ON RED.' What does this sign legally require a driver to do?
Answer: Remain stopped at the red light and not turn until the signal turns green
A 'No Turn on Red' sign prohibits any turn in the indicated direction while the traffic signal is red, requiring the driver to wait for a green signal.
Under FMCSA rules, a CMV driver who is convicted of a second serious traffic violation within three years faces a CDL disqualification of at least:
Answer: 60 days
49 CFR 383.51 mandates a minimum 60-day CDL disqualification for a second serious traffic conviction within a 3-year period.
What is the primary purpose of graduated licensing laws (GDL) that a CDT instructor should understand when working with young drivers?
Answer: To gradually expose new drivers to higher-risk situations as they gain experience
GDL systems introduce new drivers to progressively riskier driving conditions (nighttime, passengers, highways) in stages as they demonstrate competency.
Which of the following scenarios represents a violation of the 'basic speed law' found in most state vehicle codes?
Answer: Driving 55 mph in a 55 mph zone during a heavy rainstorm when conditions require slower speed
The basic speed law requires drivers to operate at a speed safe for current conditions, even if that speed is below the posted limit — driving 55 mph in heavy rain may violate this law.