MCQ Questions and Answers Flashcards

According to FMCSA regulations, what is the maximum number of hours a property-carrying CMV driver can drive in a single shift?

Answer: 11 hours

Property-carrying CMV drivers are limited to 11 hours of driving time within the 14-hour on-duty window after 10 consecutive hours off duty.

What is the minimum tread depth required for steer tires on a CMV?

Answer: 4/32 of an inch

FMCSA requires a minimum tread depth of 4/32 inch for steer (front) tires, which is greater than the 2/32 inch minimum for other tire positions.

When must a driver place warning devices (reflective triangles) if their CMV is stopped on the shoulder of a highway?

Answer: Within 10 minutes

Federal regulations require drivers to place warning devices within 10 minutes of stopping on the shoulder, with triangles placed at 10 feet, 100 feet, and 200 feet behind the vehicle.

What is the purpose of the trailer hand valve (also called the trolley valve)?

Answer: To apply only the trailer brakes independently of the tractor brakes

The trailer hand valve allows the driver to apply only the trailer brakes without engaging the tractor brakes, useful for testing during coupling and for specific driving situations.

What is the minimum amount of off-duty time required to reset the 14-hour driving window?

Answer: 10 consecutive hours

A driver must take at least 10 consecutive hours off duty (or 10 hours in sleeper berth, or a qualifying split) to reset the 14-hour driving window.

In the context of ELDT, what does 'range training' refer to?

Answer: Behind-the-wheel exercises performed in a controlled area to practice basic vehicle maneuvers

Range training refers to BTW exercises performed in a controlled, off-road area where students practice basic vehicle control maneuvers such as backing, turning, and coupling before driving on public roads.