Combination - Wisconsin Cdl

1 . Emergency air lines are often coded with the color:

Green. Orange. Yellow. Red. Click Here Full Cheat Sheet

2 . When backing up to couple a trailer, you should position the tractor:

At a 90-degree angle in front of the trailer. Directly in front of the trailer. At a 30-degree angle in front of the trailer. At a 60-degree angle in front of the trailer. Take a FREE Practice Test Now

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

Lightest Heaviest Smallest Take a FREE Practice Test Now

4 . A lightly-loaded combination vehicle will stop more slowly than a fully-loaded vehicle because:

The stiff suspension springs and strong brakes will have high traction. The stiff suspension springs and strong brakes will have low traction. The brakes only operate when a trailer reaches a minimum weight. The suspension springs only operate when a trailer reaches a minimum weight. Take a FREE Practice Test Now

5 . If you cannot reverse your trailer in a straight path, you should:

Swerve back and forth while backing. Back toward the driver's side. Back toward the passenger's side. Click Here Full Cheat Sheet

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

A five-axle tractor semi-trailer A three-axle tractor semi-trailer A bobtail tractor A triple trailer Take a FREE Practice Test Now

7 . In a double or triple combination:

Cargo weight must be evenly distributed between all trailers. The heaviest trailer should be positioned directly behind the cab. The heaviest trailer should be positioned in the rear. The weight of the trailers does not matter. Take a FREE Practice Test Now

8 . Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:

The trailer will stop normally. The trailer will not have brakes. The trailer will speed up. Take a FREE Practice Test Now

9 . Proper coupling technique:

Is the same on all vehicles. Is essential to the safe operation of a vehicle. Includes ensuring that the fifth wheel plate is not greased. Can be learned over time. Click Here Full Cheat Sheet

10 . Avoid needing to make sudden lane changes by:

Using your horn to encourage other drivers to move out of your lane. Only driving slower than the posted speed limit. Watching the road ahead while driving. Pulling off the road and waiting when there is high traffic. Take a FREE Practice Test Now

11 . To prevent a rollover, a driver should:

Keep cargo low. Place cargo high. Keep cargo loose. Turn quickly. 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 best way to recognize that your trailer has begun to skid is by:

Seeing other drivers' faces. Seeing it in your mirrors. Feeling it. Listening to the radio. Take a FREE Practice Test Now

13 . 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 Click Here Full Cheat Sheet

14 . If your vehicle gets stuck on railroad tracks, you should:

Sit in the cab and call for help. Exit the cab and walk away from the tracks. Motion for another driver to push your vehicle. Take a FREE Practice Test Now

15 . After finishing a pre-trip inspection, you should:

Leave the rear shut-off valves open. Remove the service line valve. Close the emergency line valve. Leave the emergency line valve open. Take a FREE Practice Test Now

16 . After connecting the air lines to the trailer while coupling, you should:

Supply air to the trailer. Chock the wheels. Inspect the fifth wheel. Connect the electrical cord. Take a FREE Practice Test Now

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

One second Two seconds Three seconds Four seconds Click Here Full Cheat Sheet

18 . After finishing a pre-trip inspection, you should:

Close the service line valve. Remove the service line valve. Leave the emergency line valve open. Leave the rear shut-off valves open. Take a FREE Practice Test Now

19 . Rollovers happen when drivers:

Turn too quickly. Do not driving fast enough. Pay attention to the road. Drive illegally. Take a FREE Practice Test Now

20 . If you press the tractor air supply control and your trailer's spring brakes do not release, you should:

Inspect the air line connections. Activate the Anti-Lock Braking System. Turn the engine off and on again. Take a FREE Practice Test Now