Hours of Service & Driver Fatigue Management Flashcards

Which of the following is a common sign of driver fatigue?

Answer: Difficulty maintaining lane position

Difficulty maintaining lane position — drifting or weaving — is a classic warning sign that a driver is too fatigued to operate safely.

How many hours may a passenger-carrying CMV driver drive after 8 consecutive hours off duty?

Answer: 10 hours

Passenger-carrying drivers are limited to 10 hours of driving time after 8 consecutive hours off duty, differing from the property-carrier rule.

What device are most commercial motor vehicle drivers required to use to record their hours of service?

Answer: Electronic Logging Device (ELD)

FMCSA regulations require most CMV drivers subject to HOS rules to use an Electronic Logging Device (ELD) to automatically record driving time.

When using the sleeper berth split provision, one of the two off-duty periods must be at least how long in the sleeper berth?

Answer: 8 hours

Under the sleeper berth provision, one qualifying period must be at least 8 consecutive hours in the sleeper berth to split the required off-duty time.

Which of the following best describes 'on-duty' time under federal HOS regulations?

Answer: All time from reporting for work until released from work responsibilities

On-duty time includes all time from when a driver begins work or is required to be ready to work, covering driving, loading, inspections, and waiting.

The maximum on-duty window (not just driving) for a passenger-carrying CMV driver in a single shift is:

Answer: 15 hours

Passenger-carrying drivers are restricted to a 15-hour on-duty window after coming off 8 hours of rest, compared to the 14-hour window for property carriers.

A driver feels too drowsy to continue driving safely. What is the BEST course of action?

Answer: Stop driving and rest until alert

The only truly safe remedy for drowsiness is sleep; stimulants and distractions provide only temporary relief and do not restore safe driving ability.