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QUESTION 1 / 20

When driving a bobtail tractor, you should be aware that:

Choose one answer below.

ABobtails stop very easily.✓BBobtails cannot drive as fast as tractors with semitrailers.✓CBobtails are more difficult to stop than tractors with semitrailers.✓DBobtails are illegal in most states.✓

0 of 20 answered

When driving a bobtail tractor, you should be aware that:

If oil and water build up in your vehicle's air tanks, the brakes:

If you are operating a vehicle built before 1998 and are unsure if the trailer has an Anti-Lock Braking System (ABS), you can:

A tractor protection valve is:

Using the trailer hand valve while driving:

What is another name for the service line?

Which type of vehicle is most prone to the “crack-the-whip” effect?

When backing a trailer, how should you turn the steering wheel?

Proper coupling technique:

Simply changing lanes can cause:

Fully-loaded rigs:

Rollovers are most likely to happen when:

An air supply control lever should be in its "normal" position when you are:

If you need to back your trailer but cannot back up in a straight path, you should:

When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

A combination vehicle has:

The trailer hand valve:

What happens when the wheels of a trailer lock up?

When connecting a converter dolly to a second or third trailer, the trailer height should be:

Before backing your tractor under the trailer, make sure your trailer brakes are: