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CDL Class A Practice Test
Practice mode
Question
1
of 25
QUESTION 1 / 25
Which of the following should be avoided when driving a commercial vehicle?
Choose one answer below.
A
Adjusting mirrors while driving
✓
B
Maintaining consistent speed
✓
C
Using a hands-free device
✓
D
Staying aware of surroundings
✓
QUESTION 2 / 25
When driving downhill, how should you control your speed?
Choose one answer below.
A
Use a higher gear and brake continuously
✓
B
Use a lower gear and avoid using brakes continuously
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C
Accelerate to maintain speed
✓
D
Shift to neutral
✓
QUESTION 3 / 25
What is black ice?
Choose one answer below.
A
type of tire tread
✓
B
Ice thick enough to see the road beneath
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C
black-colored ice that forms on roads
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D
Ice that is too thin to drive on
✓
QUESTION 4 / 25
What is a crucial step before driving a large truck?
Choose one answer below.
A
Checking the traffic report
✓
B
Conducting a pre-trip vehicle inspection
✓
C
Listening to the weather forecast
✓
D
Adjusting the seat and mirrors
✓
QUESTION 5 / 25
What three kinds of emergency equipment must be carried in a vehicle?
Choose one answer below.
A
First aid kit, spare tire, warning devices
✓
B
Fire extinguishers, spare electrical fuses, warning devices for parked vehicles
✓
C
Flashlight, toolkit, spare water
✓
D
Emergency blanket, triangle, spare battery
✓
QUESTION 6 / 25
What does "gross vehicle weight rating" (GVWR) refer to?
Choose one answer below.
A
The total weight of the vehicle including fuel and cargo
✓
B
The maximum weight a commercial vehicle is rated to safely handle
✓
C
The weight limit for loading cargo onto the vehicle
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D
The average weight of similar vehicles
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QUESTION 7 / 25
Expecting delays while driving can help reduce what?
Choose one answer below.
A
Fuel consumption
✓
B
Driving speed
✓
C
Stress levels
✓
D
Navigational errors
✓
QUESTION 8 / 25
During a CDL road test, how long is the required driving time?
Choose one answer below.
A
minimum of 10 minutes
✓
B
minimum of 20 minutes
✓
C
minimum of 30 minutes
✓
D
minimum of 1 hour
✓
QUESTION 9 / 25
How often should you check your mirrors while driving?
Choose one answer below.
A
Every 5-8 seconds
✓
B
Every 10-15 seconds
✓
C
Every 20-25 seconds
✓
D
Only when changing lanes
✓
QUESTION 10 / 25
What should you do if you encounter an aggressive driver?
Choose one answer below.
A
Challenge them with speed
✓
B
Stay calm and avoid making eye contact; don’t engage
✓
C
Report them to the authorities immediately
✓
D
Drive closely behind them to intimidate
✓
QUESTION 11 / 25
How should you handle skids while driving?
Choose one answer below.
A
Steer towards the barrier
✓
B
Steer in the direction you want to go and avoid slamming on the brakes
✓
C
Brake hard to regain traction
✓
D
Let go of the steering wheel
✓
QUESTION 12 / 25
What is the procedure to prepare for descending a hill?
Choose one answer below.
A
Select a high gear before starting downhill
✓
B
Shift into a lower gear before starting downhill
✓
C
Switch off the engine before starting downhill
✓
D
Release the brakes completely before going downhill
✓
QUESTION 13 / 25
How should drivers react when approaching a construction zone?
Choose one answer below.
A
Accelerate to pass quickly
✓
B
Maintain current speed
✓
C
Reduce speed and be prepared to stop
✓
D
Change lanes without signaling
✓
QUESTION 14 / 25
How many feet should you signal before making a lane change?
Choose one answer below.
A
At least 50 feet
✓
B
At least 100 feet
✓
C
At least 150 feet
✓
D
At least 200 feet
✓
QUESTION 15 / 25
What are the key indicators of tire wear to inspect on a vehicle?
Choose one answer below.
A
Tread depth, color fade, and air pressure
✓
B
Tread depth, uneven wear, and cracks
✓
C
Color, tire age, and tread depth
✓
D
Air pressure, tread depth, and thickness
✓
QUESTION 16 / 25
How can drivers safely navigate through inclement weather conditions?
Choose one answer below.
A
By driving at the posted speed limit
✓
B
By reducing speed and increasing following distance
✓
C
By using high beams for better visibility
✓
D
By driving faster to reach their destination sooner
✓
QUESTION 17 / 25
Why is it important for truck drivers to use their mirrors effectively?
Choose one answer below.
A
To see the decoration of their truck
✓
B
To monitor traffic and adjust to conditions
✓
C
To check their blind spots only
✓
D
To entertain themselves during long drives
✓
QUESTION 18 / 25
What are the signs of a fatigued driver?
Choose one answer below.
A
Excessive speed and quick lane changes
✓
B
Constantly checking mirrors
✓
C
Yawning, drifting out of lanes, and difficulty concentrating
✓
D
Frequent acceleration and deceleration
✓
QUESTION 19 / 25
What do you check first during a vehicle inspection?
Choose one answer below.
A
The engine compartment
✓
B
The tires
✓
C
The lights
✓
D
The mirrors
✓
QUESTION 20 / 25
What is the correct method to test that air flows to all trailers?
Choose one answer below.
A
By observing the air gauge readings only
✓
B
Closing the service line valve
✓
C
Opening the service line valve and checking for service pressure
✓
D
Inspecting the air lines for blockages
✓
QUESTION 21 / 25
What is one of the main responsibilities of a commercial driver?
Choose one answer below.
A
To improve the vehicle’s aesthetic appeal
✓
B
To ensure the company gets the most miles
✓
C
To maintain accurate driving logs
✓
D
To always drive above the speed limit
✓
QUESTION 22 / 25
What is the main focus of the CDL requirements when it comes to driver health?
Choose one answer below.
A
Maintaining technical skills
✓
B
Ensuring physical and mental fitness for safe driving
✓
C
Knowledge of vehicle mechanics
✓
D
Familiarity with traffic laws
✓
QUESTION 23 / 25
What is the maximum blood alcohol concentration (BAC) allowed for commercial drivers within 4 hours of operating a vehicle?
Choose one answer below.
A
0.02%
✓
B
0.04%
✓
C
0.08%
✓
D
0.10%
✓
QUESTION 24 / 25
What does "CDL" disqualification for drug or alcohol violations entail?
Choose one answer below.
A
minimum two-year disqualification for a first offense
✓
B
minimum one-year disqualification for a first offense
✓
C
minimum three-month disqualification for a first offense
✓
D
minimum six-month disqualification for a first offense
✓
QUESTION 25 / 25
Which of the following best describes a combination vehicle?
Choose one answer below.
A
vehicle with a trailer that is 10,000 pounds or less
✓
B
vehicle that tows another vehicle
✓
C
vehicle over 26,000 pounds that tows any weight
✓
D
motorcycle towing a sidecar
✓
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