Combination - Vermont Cdl

1 . When coupling a trailer:

Make sure to couple the proper glad hands. Glad hands can be connected to any other glad hands. Only one set of glad hands should be connected. Click Here Full Cheat Sheet

2 . To control surge when stopping, you should not:

Keep a steady pressure on the brakes. Brake well in advance of a stop. Release the brakes too quickly. Take a FREE Practice Test Now

3 . When glad hands are coupled, the seals should be pressed together at a ____ angle.

50-degree 180-degree 90-degree Take a FREE Practice Test Now

4 . Having anti-lock brakes on only one axle:

Will not make a difference in braking. Will provide increased control in braking. Will likely cause the air brakes to malfunction. Take a FREE Practice Test Now

5 . If you are backing and the trailer begins to drift off-course, the driver should:

Return the steering wheel to the 12 o’clock position. Turn the top of the steering wheel in the direction of the drift. Turn the top of the steering wheel in the direction opposite of the drift. Click Here Full Cheat Sheet

6 . Operating combination vehicles usually requires ____ operating single vehicles.

Less skill than About the same level of skill as More skill than Take a FREE Practice Test Now

7 . If the emergency air line loses pressure:

The Anti-Lock Braking System will activate. The service air line will activate. The emergency brakes will activate. Take a FREE Practice Test Now

8 . When backing up your tractor while coupling it to a trailer, the trailer brakes should be:

Deactivated. Locked. Unlocked. Take a FREE Practice Test Now

9 . Rearward amplification refers to:

The amount of noise projected to the rear of a vehicle. The cause of the "crack-the-whip" effect. The number of trailers that can be pulled by a tractor. Click Here Full Cheat Sheet

10 . When the wheels of a trailer lock up:

The trailer will be drivable. The trailer may swing around. The vehicle will maintain steering. Take a FREE Practice Test Now

11 . Rearward amplification refers to:

The amount of noise projected to the rear of the vehicle. The cause of the "crack-the-whip" effect. The number of trailers that can be pulled by one tractor. Take a FREE Practice Test Now

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

12 . The tractor protection valve:

Ensures that oil adequately lubricates the engine. Protects the tractor from exceeding a set speed. Keeps air in the truck braking system if the trailer develops a leak. Take a FREE Practice Test Now

13 . When coupling, you should:

Make sure to couple the proper glad hands. Only couple one set of glad hands. It is best to leave one glad hand loose. Click Here Full Cheat Sheet

14 . Which of the following will not help prevent a rig from rolling over?

Keeping the cargo as close to the ground as possible Driving slowly around turns Driving on the shoulder of a road Take a FREE Practice Test Now

15 . If unsure if a trailer has an Anti-Lock Braking System (ABS), you can:

Look under the trailer for wheel speed sensors coming from the back of the brakes. Remove a tire and look for the ABS sensor on the axle. Assume it does have ABS. Take a FREE Practice Test Now

16 . In a double or triple combination, the ____ trailer should be directly behind the cab.

Lightest Heaviest Smallest Take a FREE Practice Test Now

17 . If you are backing and become unsure about your path of travel, you should:

Continue backing. Stop and get out to look. Continue backing, but more slowly than before. Click Here Full Cheat Sheet

18 . A combination vehicle has ____ air line(s).

One Two Three Take a FREE Practice Test Now

19 . When braking while pulling a trailer equipped with anti-lock brakes, you should:

Pump the brakes. Use extra braking force to ensure the brakes kick in. Brake as you would without anti-lock brakes. Take a FREE Practice Test Now

20 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:

In the same way as they would be in a vehicle without ABS. As the vehicle is placed in neutral. With the hand brake. Take a FREE Practice Test Now