FREE Mississippi Passenger - Real 2022 CDL Questions!

1. When driving down a steep grade, your brakes may fade. What happens if brakes fade?

They become quieter.

They become less effective.

They work better than usual.

They work differently from front to back.

If you use your brakes too much when traveling on a steep downgrade, they may overheat and become less effective. To avoid causing your brakes to overheat on a steep hill, you should rely on engine braking.

2. Mirrors should be adjusted:

While moving.

When the trailers are straight.

When you are standing next to the vehicle.

By an assistant.

Mirrors should be checked prior to the beginning of a trip. On a vehicle with a trailer, mirror adjustment can only be checked accurately if the connected trailer is straight.

3. To best reduce the distractions of a cell phone, you should:

Stay on a single call for an entire trip.

Turn the phone off before driving.

Only us the phone to accept incoming calls.

Use the phone to text rather than talk.

If possible, you should avoid all cell phone distractions by turning it off before starting a trip and leaving it off until you reach your destination.

4. Which of the following is not a cause of hydraulic brake failure?

Loss of hydraulic pressure

Brake fade on long hills

Downshifting

Most cases of hydraulic brake failure come from one of two causes. The brakes may fail due to a loss of hydraulic pressure or due to overuse on long hills, causing the brakes to fade.

5. If you see taillights ahead while you are driving in fog:

The lights may not indicate where the road is as the vehicle may have pulled off the roadway.

You can assume the vehicle ahead is on the road.

It may be an optical illusion.

When driving under foggy conditions, lights cannot be taken as a reliable indication of where the road is. The lights may be coming from a vehicle that has pulled off the road.

6. Hydroplaning:

Only occurs at extremely high speeds.

Can occur at speeds as slow as 30 mph.

Happens most frequently when tire pressure is too high.

Happens most frequently when tires have good tread.

If there is enough water on the road, hydroplaning can occur at speeds as low as 30 mph. It is most likely if the tires' air pressure is too low or if tires' tread is worn.

7. During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.

2 psi

4 psi

6 psi

It is important to know the maximum air loss rate that is safe for your specific vehicle. A double combination vehicle should have a leakage rate no higher than 4 psi in a minute during an applied leakage test.

Passenger