Idaho CDL DMV Endorsement Bus 2

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1. If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:

Speed up.

Drive on the shoulder.

Use the right lane.

You should stay in the right lane of a multilane road if your vehicle is being slowed down by a heavy load. Allow other vehicles to pass your truck using the left lane.

2. Texting while driving is especially dangerous because:

It is both a mental and physical distraction.

A message may be upsetting to the driver.

People like to read and may become too engaged in their phones.

Texting while driving is particularly dangerous because it is both a mental and physical distraction to the driver. In addition to diverting a driver's mental attention away from the road, texting requires a person to remove at least one hand from the vehicle's controls.

3. What do the two systems of a dual air brake system share?

Hoses

An air compressor

Air tanks

Both systems in a dual air brake systems share a single air compressor. If the air compressor is damaged, neither system will be able to operate properly.

4. What is often found in compressed air?

Water

Cardboard

Brake fluid

Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Tanks must be drained regularly to remove this build-up.

5. During a basic vehicle controls skills test exercise, your vehicle's final position should be:

In the general area that was described by the examiner.

In the exact final position described by the examiner.

Within three feet of the final position described by the examiner.

You should finish each exercise with your vehicle in the exact position described by the examiner. You can be penalized for failing to complete an exercise exactly in the manner described by the examiner, potentially resulting in failure of the basic control skills test.

6. What is brake lag?

The time required for the brakes to work after the brake pedal is pressed

The distance between the brake pedal and the floor

The amount of air pressure used to stop the vehicle

Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.

7. A driver should ensure that:

The truck is overloaded.

The truck is properly loaded.

The cargo is mostly in the front of the trailer.

It is essential to the safe operation of a CMV that cargo be properly loaded. Improper loading can affect handling and damage the vehicle. Additionally, improperly loaded materials can cause injury or death by falling off of the vehicle.

8. What is axle weight?

The weight transmitted to the ground by one axle

The weight of one axle

How much weight an axle can hold

"Axle weight" refers to the weight transmitted to the ground by one axle or one set of axles.

9. Eating while driving:

Is a good way to maximize your time.

Is encouraged during long trips.

Is a distraction to the driver.

Eating while driving can be a dangerous distraction to the driver both because it diverts their attention away from the task at hand and requires them to remove a hand from the steering wheel.

10. When driving, your mirrors should:

Not be used, as they are distracting.

Not be used unless there is traffic.

Be checked regularly.

It is important for you to be aware of your surroundings at all times. To do this, regularly check your mirrors.

11. How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?

It stays about the same.

It doubles.

It quadruples.

Increasing your vehicle's speed will increase your vehicle's striking power and braking distance. Doubling your vehicle's speed from 20 to 40 mph will quadruple its braking distance.

12. On slippery roads, you should:

Accelerate and slow down frequently.

Adjust your driving to match weather conditions.

Tailgate other vehicles.

On a slippery road, you must adjust your driving speed to fit conditions. Because it will take longer for your vehicle to stop on a slippery road than on a dry road, you should increase your following distance when conditions are slippery. Avoid driving in a way that requires you to change speeds frequently.

13. When coming to a stop, you should apply the brake pedal by:

Pushing down gradually.

Pushing down quickly.

Pulling up gradually.

When stopping, you should push the brake pedal down gradually. Braking gradually will help you to maintain proper control of your vehicle.

14. Rolling backward when beginning to accelerate is dangerous because:

The transmission may be damaged.

The truck is not made to go backwards.

You may hit a vehicle behind you.

Be sure that you are able to accelerate without first rolling back. Rolling backwards may cause you to collide with a vehicle or other obstacle behind your truck.

15. Before a bus enters a curve, the driver should:

Increase their speed.

Not change their speed.

Reduce their speed.

Buses should always enter curves at reduced speeds. A driver should be especially cautious if entering a curve under wet or slippery conditions.

16. When using a turn signal, you should not:

Signal early.

Signal continuously.

Allow the turn signal to stay on long after the turn has been completed.

Always signal well ahead of a turn or lane change. Signal continuously until you have completed the turn or lane change, then be sure to cancel the signal so you do not confuse other drivers.

17. Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:

Are necessary for the proper function of the system.

Should take up about 10 percent of the tank.

Should be removed regularly.

If water and compressor oil are left to build up in an air brake system, the system can be damaged. Air storage tanks are equipped with drains to allow this accumulation to be removed. Manually controlled drains should be operated at the end of each day of driving.

18. What is the number one cause of death and injury in a work zone?

Drivers speeding

Slow drivers

Animals crossing the road

Speeding is the leading cause of death and injury in work zones. Use extra caution when driving near workers in a work zone.

19. One way to prevent drowsiness while driving is to:

Drive alone.

Avoid regular exercise.

Get adequate sleep the night before the trip.

Driving while fatigued can be extremely dangerous. Strategies for preventing drowsiness while driving include getting a full night's sleep before a trip; having someone ride with you; scheduling trips for times during which you are normally awake; and avoiding medications that may cause drowsiness. Exercising regularly can increase your energy levels and make you less likely to become tired while driving.

20. You should check and adjust your mirrors:

Before driving.

While driving.

After driving.

Be sure to check your mirrors before beginning a drive. Your posture may change day to day and your mirrors may need to be adjusted.

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