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NC CDL General Knowledge Practice Test
Practice mode
Question
1
of 25
QUESTION 1 / 25
What is a good rule to follow when using a fire extinguisher?
Choose one answer below.
A
Point at the flames
✓
B
Shake the extinguisher before use
✓
C
Aim at the base of the fire
✓
D
Use it when the fire is small only
✓
QUESTION 2 / 25
Which statement about alcohol and driving is true?
Choose one answer below.
A
Alcohol does not impact judgment
✓
B
It is always safe to drive after a drink
✓
C
Alcohol first affects judgment and self-control
✓
D
driver can never lose their license for DUI
✓
QUESTION 3 / 25
On which types of fires can you use an "ABC" fire extinguisher?
Choose one answer below.
A
Only trash and paper fires
✓
B
Flammable gases only
✓
C
Electrical fires and burning tires
✓
D
Wood and fabric fires only
✓
QUESTION 4 / 25
What should you NOT do in the event of hydraulic brake failure?
Choose one answer below.
A
Shift up
✓
B
Press the brake pedal firmly
✓
C
Use the emergency brake
✓
D
Check for leaks
✓
QUESTION 5 / 25
When backing and turning, you should turn toward which side?
Choose one answer below.
A
The passenger side for better visibility.
✓
B
The driver's side to watch the rear of the vehicle.
✓
C
The side opposite of the direction you're turning.
✓
D
Either side, depending on the circumstances.
✓
QUESTION 6 / 25
What is the most important reason for being alert to hazards while driving?
Choose one answer below.
A
To enhance fuel efficiency
✓
B
You will have time to plan your escape if the hazard becomes an emergency
✓
C
To avoid traffic violations
✓
D
To arrive at your destination faster
✓
QUESTION 7 / 25
In terms of cargo safety, what is the function of blocking and bracing?
Choose one answer below.
A
To improve vehicle speed
✓
B
To secure the load and prevent movement
✓
C
To reduce the overall weight
✓
D
To enhance visibility while driving
✓
QUESTION 8 / 25
How should you use the brake pedal when driving down a steep downhill grade?
Choose one answer below.
A
Brake continuously to maintain speed
✓
B
Release the brake when going over the safe speed
✓
C
Apply the brake only when needed
✓
D
Release the brake when 5 MPH below safe speed and repeat
✓
QUESTION 9 / 25
During an en-route inspection, what should you check regarding cargo?
Choose one answer below.
A
GPS functionality
✓
B
Lane departure system
✓
C
Cargo doors and securement
✓
D
Lighting systems
✓
QUESTION 10 / 25
What is a significant risk when transporting liquids in tankers?
Choose one answer below.
A
Overloading the vehicle
✓
B
Cargo surging during sudden stops
✓
C
Driving too slowly
✓
D
Using incorrect tire types
✓
QUESTION 11 / 25
How often should you check your mirrors while driving?
Choose one answer below.
A
Every 15 seconds
✓
B
Every minute
✓
C
Frequently to remain aware of surroundings
✓
D
Only when changing lanes
✓
QUESTION 12 / 25
What is essential to check on a trailer before driving?
Choose one answer below.
A
Ensure the air conditioning works
✓
B
Check that the trailer connection is secure and that the lights are functioning
✓
C
Inspect the trailer's color
✓
D
Only check the floor for stability
✓
QUESTION 13 / 25
If you had to drive onto the shoulder to avoid a crash, what should you do before returning to the pavement?
Choose one answer below.
A
Accelerate quickly back onto the pavement
✓
B
Ease back onto the highway
✓
C
Come to a complete stop, if possible
✓
D
Signal and merge immediately
✓
QUESTION 14 / 25
What is controlled braking used for?
Choose one answer below.
A
To speed up safely
✓
B
To keep a vehicle in a straight line when braking
✓
C
To avoid skidding
✓
D
To steer the vehicle
✓
QUESTION 15 / 25
What is the definition of counter-steering?
Choose one answer below.
A
Accelerating after skidding
✓
B
Turning the wheel back after a correction
✓
C
Using brakes to avoid skidding
✓
D
Slowing down before a turn
✓
QUESTION 16 / 25
What is a true statement regarding driving in strong winds?
Choose one answer below.
A
Winds are manageable at all times
✓
B
Wind poses a lesser risk for trucks
✓
C
Winds are a significant issue when exiting tunnels
✓
D
Wind direction should be ignored
✓
QUESTION 17 / 25
What should you check for on your tires during a pre-trip inspection?
Choose one answer below.
A
The color of the tire tread.
✓
B
The tire pressure and tread depth.
✓
C
The age of the tires only.
✓
D
Whether the tires match in size and brand.
✓
QUESTION 18 / 25
What is the purpose of escape ramps?
Choose one answer below.
A
To allow vehicles to change lanes
✓
B
To give directions to drivers
✓
C
To stop runaway vehicles
✓
D
To provide rest areas for drivers
✓
QUESTION 19 / 25
What may result from a vehicle loaded with most of the weight on the steering axle?
Choose one answer below.
A
Improved vehicle handling and stability.
✓
B
Hard steering and possible damage to the tires.
✓
C
reduction in brake performance.
✓
D
Enhanced fuel efficiency.
✓
QUESTION 20 / 25
What is a proper use of vehicle lights and flashers?
Choose one answer below.
A
Using high beams in foggy conditions
✓
B
Flashing your brake lights to alert others of a stop
✓
C
Leaving headlights off during the day
✓
D
Using turn signals to change lanes only
✓
QUESTION 21 / 25
What should drivers be aware of when transporting hazardous materials?
Choose one answer below.
A
Only the weight of the materials is important
✓
B
Hazards are irrelevant as long as the vehicle is in good condition
✓
C
They must comply with specific regulations and safety guidelines
✓
D
Type of cargo is not important
✓
QUESTION 22 / 25
If you are being tailgated, what should you do?
Choose one answer below.
A
Accelerate to get away
✓
B
Switch lanes frequently
✓
C
Increase your following distance
✓
D
Brake suddenly to warn the driver
✓
QUESTION 23 / 25
For your safety, when setting out reflective triangles, what should you do?
Choose one answer below.
A
Place them as directed by traffic signs
✓
B
Hold the triangles between yourself and oncoming traffic
✓
C
Set them on the side of the road
✓
D
Use them only at night
✓
QUESTION 24 / 25
What can a driver do to minimize the risk of vehicle rollover?
Choose one answer below.
A
Drive at the highest permissible speed
✓
B
Ensure a low center of gravity
✓
C
Maximize the load on the top of the vehicle
✓
D
Use wider tires
✓
QUESTION 25 / 25
How can excessive weight on the rear axle affect a vehicle?
Choose one answer below.
A
It can improve acceleration
✓
B
It can increase stability
✓
C
It can lead to increased braking distance
✓
D
It can enhance fuel efficiency
✓
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