Cargo with a high center of gravity makes a vehicle more likely to tip over than cargo with a low center of gravity. For this reason, it is important that the weight of cargo be distributed as low as possible.

Can make a vehicle likely to tip over.

Is encouraged in inclement weather.

When backing a truck, always use the mirrors on both sides of the vehicle. Have someone help you whenever possible.

Only use the side mirrors on the driver’s side of the vehicle.

Blocking and bracing are used to prevent cargo from shifting in transit.

Is only done with liquid cargo.

Is dangerous and should never be done.

Trailers can overturn as a result of the "crack-the-whip" effect. The last trailer in a combination is the most prone to tip over due to this effect. Drivers should be aware of the rearward amplification of their specific vehicles and drive accordingly.

Be more effective than braking.

A trailer may swing out and strike other vehicles if its wheels lock up. This is especially likely with lightly-loaded trailers.

The vehicle will maintain steering.

Double Triple Test | Idaho 2024 #1

Train for FREE with our Idaho CDL double triple practice test online. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a ID CDL double triple license in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

Double Triple Test | Idaho 2024 #1

1 . Before a trip, ensure that the fifth wheel is:

2 . Cargo with a high center of gravity:

3 . When backing a truck, you should:

4 . Blocking a load:

5 . The "crack-the-whip" effect can:

6 . Of the following, which is the most slippery surface?

7 . When the wheels of a trailer lock up:

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