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.

Avoid being an aggressive driver by being realistic about your travel time, making allowance for delays, maintaining reasonable following distances, and not making hand gestures that could anger another driver.

Make hand gestures that could anger other drivers.

Slow down and maintain a reasonable following distance.

Make hand gestures that could anger other drivers.

Cargo weight should be evenly distributed within a trailer to reduce the risk of a rollover. Do not place too much weight on one side of a trailer.

Loaded with most weight on the driver’s side of the trailer.

Placed near the rear of the trailer.

Check your engine during the pre-trip inspection. After starting the engine, you should listen for unusual noises.

Place the engine in first gear.

One way to know when it is time to shift gears is to learn your vehicle's operating rpm range. You should shift up when your engine reaches the top of that range. You can also learn which speeds each gear is good for and shift up based on your speedometer.

The actions of the vehicle next to you.

The speed of your engine (rpm).

The actions of the vehicle next to you.

Double Triple Test | New Mexico 2025 #1

Train for FREE with our New Mexico 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 NM CDL double triple license in 2025, 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 | New Mexico 2025 #1

1 . Which gas would cause concern due to a faulty exhaust system?

2 . During an applied leakage test, what is the maximum leakage rate that is safe for a single vehicle with air brakes?

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

4 . You may be an aggressive driver if you:

5 . To prevent a rollover, cargo should be:

6 . When starting an engine as part of a pre-trip inspection, the driver should:

7 . Do not base your decision to shift gears on:

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