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Florida CDL DMV Knowledge Test Class A 1

Take 6 practice tests for CDL is the best way to prepare for your Florida DMV exam is by taking our free practice tests. The following question are from real Florida DMV practice test. More than 95% people pass a DMV exam when practice at DMV Practice Test.

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1. During the basic control skills test, you can acquire points by:
Crossing over an exercise boundary.
Pulling up one time.
Exiting the vehicle one time to check your positioning.
Setting the parking brake.

The examiner will score the number of times your vehicle touches or crosses an exercise boundary line. Each encroachment will count as an error, resulting in points against your skills test score.

2. During exercises that are not the straight line backing exercise, you may exit your vehicle to check its position no more than:
One time.
Two times.
Three times.
Four times.

A driver is allowed to exit their vehicle to check its position during any basic control skills test exercise. This action is called a "look." During the straight line backing exercise, a driver may not exceed one look. During any other exercise, a driver may not exceed two looks.

3. When preparing to enter traffic, you should do all of the following, except:
Wait for a large gap between vehicles.
Be prepared for your vehicle to accelerate slowly, especially if it is loaded.
Make sure you can completely cross traffic, if necessary, without interfering with traffic.
Assume other drivers will make room for your much larger vehicle.

When crossing or entering traffic, bear in mind the size of your vehicle and the distance it will need to accelerate. Wait for a gap in traffic that is large enough to accommodate your vehicle before you begin to accelerate. Remember that you will need more room to accelerate if your vehicle is heavily loaded. Before crossing a road, be sure that you can get all the way across without interfering with traffic.

4. You can be denied a hazardous materials endorsement for:
Being a permanent resident of the United States.
Never having been convicted of a felony.
Have been committed to a mental institution.

You will be denied a HazMat endorsement, or lose an existing endorsement, if you are not a lawful permanent U.S. resident; you renounce your U.S. citizenship; you are wanted for, under indictment for, or convicted of certain felonies; you are judged as mentally unstable or are committed to a mental institution; or you are deemed to pose a security threat by the Transportation Security Administration (TSA).

5. When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:
Turning on your four-way flashers.
Honking your horn.
Turning on your headlights.
Turning on your windshield wipers.

At dawn or dusk, and in snowy or rainy conditions, you should turn on your headlights to make it easier for other road users to see your vehicle.

6. During the on-road driving test, you must do all of the following, except:
Wear your safety belt.
Obey all traffic laws.
Complete the test without a moving violation.
Obey all traffic signs and signals, but only if other traffic is present.

You must drive in a safe and responsible manner during the on-road driving test. This includes wearing your safety belt; obeying all traffic signs, signals, and laws; and completing the test without an accident or moving violation.

7. Hydraulic brakes can fail due to:
A loss of pressure.
Cold weather.
Driving uphill for long periods of time.
Grooves in the roadway.

Failure of hydraulic brakes is often caused by a loss of hydraulic pressure. Hydraulic brakes may also fade because of overuse on a long downgrade.

8. A vehicle stopped at a green light may indicate that the driver:
Is impaired.
Is colorblind.
Does not know the rules of the road.
Is very patient.

It is important to observe other drivers' actions and identify clues that a person could be driving impaired. Drivers who have had too much to drink, are sleepy, are on drugs, or are ill can present hazards to other drivers. One sign that a driver may be impaired is that they stop in inappropriate places, such as at green traffic lights.

9. Brakes may get out of adjustment:
If they are too hot.
In colder weather.
If they are used.
If they get wet.

Brakes can get out of adjustment quickly, especially if they are used to the point of overheating. Brake adjustment should be checked frequently.

10. What kind of force must emergency brakes use?
Air pressure

Because air pressure can eventually leak away, the emergency brakes in an air brake system must be held on by mechanical force.

11. For safety purposes, when should you turn off a retarder?
When the roadways are slippery
When you are carrying a passenger
When you are carrying a heavy load
When driving in heavy traffic

Retarders are mechanisms in some vehicles that help slow a vehicle and reduce the need for braking. However, using a retarder may cause wheels to skid when they have poor traction. Turn off retarders when traveling under wet, snowy, or icy conditions.

12. When drivers turn, they usually:
Look in the direction of the turn.
Look in the direction opposite the turn.
Look behind their vehicles.

When turning, drivers usually look in the direction of their turn. If a driver fails to signal before a turn or lane change, their body movements may still provide a clue that they are planning to turn.

13. If you need to travel down a hill, you should switch into a lower gear:
After you start moving downhill.
As you go downhill and pick up speed.
Before you start moving downhill.
Near the bottom of the hill.

Always downshift before beginning to drive downhill. Forcing an automatic transmission into a lower gear at a high speed could damage the transmission and also lead to a loss of ability to engine brake. Drive at a speed that will allow you to control your vehicle without overusing your brakes. When determining a safe speed to drive, you should take into account the steepness of the grade, the length of the grade, the weight of your vehicle, road conditions, and weather conditions.

14. To make driving at night easier, you should:
Keep your interior light turned on.
Adjust the instrument panel lights as dimly as you can while still being able to read the gauges.
Not take a nap before driving.
Use only your low beam headlights.

If the interior of your cab is too bright when you are driving at night, you may have difficulty seeing things outside. Keep the interior light off and adjust your instrument lights to the lowest possible level that still allows you to easily read the gauges.

15. If a truck's Anti-Lock Braking System (ABS) is not working:
The truck will not have any brakes.
The truck should be driven only at slow speeds.
The truck will still have brakes.
The truck will lack brakes on its left side.

If an ABS system fails, the vehicle will still have normal braking function. The driver should continue to drive and brake as they normally would.

16. If you realize you may be running late to your destination, you should:
Drive faster.
Drive while using flashing lights so other road users move out of your path.
Drive at a safe speed and arrive when you arrive.
Get upset.

To avoid engaging in dangerous and aggressive driving behavior, you should relax and accept any delays that arise throughout a trip. To help avoid the stress of arriving late to a destination, plan for likely delays when planning your drive.

17. On a leaf spring, the leaves:
May be broken.
Are not required.
Should not be broken.
Should shift.

When inspecting a vehicle's suspension, you should look for broken or missing leaves in the leaf springs. Any defect of this kind is dangerous. If one-fourth or more of the leaves are missing from any leaf spring, the vehicle must be put out-of-service.

18. Which of the following is not an example of a driver who might be a hazard?
A driver operating a vehicle without first scraping ice off the windshield
The operator of a rental truck
The driver of a station wagon with items covering the back windows
A person operating a pick-up truck

Drivers with blocked vision may pose hazards to others on the road. Examples of such drivers include those who haven't scraped ice off of their windshields; those driving vehicles loaded with large items blocking the windows; and those who are driving rental trucks without being used to the limited rear visibility of a truck.

19. Blocking a load:
Is dangerous and should never be done.
Helps stabilize the load.
Is only done with liquids.
Can only be done in dry weather.

Cargo should be blocked to prevent it from sliding around in transit. The shifting of weight in transit can make steering and handling difficult for the driver.

20. If a tire fails, the driver should:
Keep one hand on the steering wheel and use their other hand to wave to other drivers.
Stomp on the brakes.
Not use the brakes.

If a tire fails, braking could cause a loss of control. Unless braking is necessary to avoid a hazard, you should stay off the brakes until your vehicle has slowed considerably. Only then should you brake very gently, pull off the road, and stop.

21. Vehicles with dual air brake systems:
Maintain full-capacity air pressure in the braking systems even when the vehicle is not running.
Maintain some air pressure in the braking systems when the vehicle is not running.
Must be run to build enough air pressure to brakes to operate properly.
Do not need time to build air pressure before a trip.

Before driving a vehicle with a dual air brake system, you must allow the air compressor time to build up at least 100 psi of air pressure in both the primary and secondary systems.

22. Fuel records supporting IFTA quarterly fuel use tax returns must be kept by carriers for:
One year.
Two years.
Three years.
Four years.

In general, if you operate a commercial vehicle in interstate commerce, it must be registered under the International Registration Plan (IRP) and International Fuel Tax Agreement (IFTA). These programs collect and distribute vehicle registration fees and fuel taxes based on what jurisdictions you drive in and for how long. Mileage and fuel records supporting IFTA quarterly fuel tax returns must be retained by carriers for four years.

23. If the spring brakes are activated, you should never:
Push down the brake pedal.
Open the hood.
Release air from the air storage tanks.
Open the door to the cab.

Never apply the brake pedal if your spring breaks are activated. Brakes can be damaged if they are subject to both springs and air pressure.

24. If feeling sleepy while driving, you should:
Press on and finish the trip.
Drive faster to arrive to your destination sooner.
Leave the road and take a nap.
Take an energy pill.

If you begin to feel sleepy while driving, the only safe response is to stop driving and get some sleep. Attempting to fight off exhaustion is dangerous and a major cause of fatal crashes. Stimulants are not a safe solution because they may help keep you awake but will not make you more alert. Once stimulants wear off, you will be even more tired than you were originally.

25. After the engine is started, warning lights and buzzers should all:
Stay on.
Flicker occasionally.
Turn off right away.
Turn off once the vehicle begins moving.

After the engine is started, the warning lights and buzzers should deactivate immediately. The charging circuit warning, oil, coolant, and Anti-Lock Braking System (ABS) lights should all turn off.

26. A stopped bus:
Is not a cause for concern.
Is not a concern if passengers are not unloading.
Should not be on the roadway.
Is a concern, whether passengers are visible or not.

Always drive cautiously around a stopped bus. Passengers may cross in front of or behind it, and the bus may prevent them from seeing your vehicle.

27. When driving, the steering wheel should be:
Held with one hand.
Held with both hands on opposite sides of the wheel.
Held with both hands at the bottom of the wheel.
Held with both hands at the top of the wheel.

Hold the steering wheel firmly with both hands, placing them on opposite sides of the wheel.

28. When driving:
It is best to hide your intentions from others.
You should only use turn signals if there are vehicles near you.
You should not use turn signals in construction zones.
You should always use turn signals to warn others about your intentions.

It is important to communicate your intentions to others on the road. Make sure to signal before turning or changing lanes, even if no other vehicles are nearby.

29. If a tire rim is damaged, it should be:
Left on the vehicle.
Welded to repair the damage.
Put on the axle farthest from the driver.

Wheels or rims with welding repairs are not safe.

30. During the steering box portion of the vehicle inspection test, you should not:
Ensure that the steering box is securely mounted.
Ensure that the steering box is free of leaks.
Look for missing bolts in the steering box.
Assume all cotter keys are present.

Before a trip, ensure that the steering box is securely mounted. Check for missing nuts, bolts, and cotter keys. Be sure that there are no power steering fluid leaks and that there is no damage to power steering hoses.

31. A driver will lose their CDL for at least one year for:
Leaving the scene of an accident involving a CMV.
Improper parking.
Improper lane change.

Leaving the scene of an accident involving a CMV will result in loss of your CDL for at least one year.

32. When checking the springs during a vehicle inspection, do all of the following, except:
Look for missing leaf springs.
Look for broken coil springs.
Ensure torsion springs are not damaged.
Glue cracked leaf springs.

When checking the springs as part of the vehicle inspection test, you should look for missing, shifted, cracked, or broken leaf springs, as well as broken or distorted coil springs. If the vehicle is equipped with torsion bars, torque arms, or other types of suspension components, ensure that they are not damaged and are mounted securely.

33. It is illegal to operate a CMV with a minimum blood alcohol concentration (BAC) of:
0.01 percent.
0.04 percent.
0.08 percent.

It is illegal to operate a CMV with a blood alcohol concentration (BAC) of 0.04 percent or higher. Operating a CMV while under the influence of alcohol will result in loss of license for at least one year.

34. Distracted drivers may be:
Staying within their lanes.
Traveling at consistent speeds.
Preoccupied with using their cell phones.
Not talking to anyone else in their vehicles.

You may be able to tell that another driver is distracted if you can see them drifting within a lane or across lane dividers; traveling at inconsistent speeds; being preoccupied with a cell phone, a map, food, or other items; or engaging in conversation with passengers.

35. You should always use at least ____ to secure cargo on a flatbed trailer.
One tie-down
Two tie-downs
Three tie-downs
Four tie-downs

When transporting cargo on a flatbed trailer, you should use at least one tie-down for every 10 feet of cargo. Any cargo, no matter how small, should be restrained by a minimum of two tie-downs.

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