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QUESTION 1 / 20

When driving a tractor-trailer equipped with ABS, you should:

Choose one answer below.

AStop harder than you would otherwise.✓BUse extra braking force to ensure the ABS kicks in.✓CBrake as you normally would.✓DBrake using less pressure than you would otherwise use.✓

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When driving a tractor-trailer equipped with ABS, you should:

The emergency air line:

Using the trailer hand brake while experiencing a trailer jackknife will:

Compared to other commercial motor vehicles, combination vehicles need more space on the road because they are longer and they:

A trailer will be most likely to swing around when:

Which of the following types of vehicles is most prone to the “crack-the-whip" effect?

To test the trailer service brakes, you should:

Fully-loaded rigs:

If a trailer begins to skid, the driver should:

To help prevent a rollover, cargo should be:

The easiest way to recognize that your trailer has begun to skid is to:

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

When driving a combination rig, following distance should be:

Trailers with low underneath clearance may be difficult to drive:

After finishing a pre-trip inspection, you should:

To lower the risk of a rollover, you should:

The trailer hand valve should be used:

When glad hands are coupled, the seals should be pressed together at an angle of:

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

To prevent a trailer from rolling over, you should: