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California CDL Class A Practice Exam
Practice mode
Question
1
of 25
QUESTION 1 / 25
What action should be avoided during a tire blowout?
Choose one answer below.
A
Steering straight ahead
✓
B
Braking suddenly
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C
Using cruise control
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D
Accelerating gracefully
✓
QUESTION 2 / 25
What is a necessary precaution when chocking wheels of a hazmat vehicle?
Choose one answer below.
A
Ensure they are visible to others
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B
Choose proper chocking material
✓
C
Obtain a safety inspection
✓
D
Confirm all connections are secure
✓
QUESTION 3 / 25
What is the cutoff pressure for the air compressor during a pressure test?
Choose one answer below.
A
100 psi
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B
110 psi
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C
130 psi
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D
140 psi
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QUESTION 4 / 25
What is the maximum total length for a combination of truck and semitrailer?
Choose one answer below.
A
65 feet
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B
75 feet
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C
80 feet
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D
90 feet
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QUESTION 5 / 25
How many passengers must a vehicle accommodate for a Commercial Driver's License (CDL) to be required?
Choose one answer below.
A
5 or more
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B
8 or more
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C
10 or more
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D
12 or more
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QUESTION 6 / 25
What is the minimum distance from a gathering place that a vehicle carrying explosives should be parked?
Choose one answer below.
A
200 feet
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B
300 feet
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C
400 feet
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D
500 feet
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QUESTION 7 / 25
When driving in adverse weather conditions, what should a driver do?
Choose one answer below.
A
Increase speed to avoid hazards
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B
Reduce speed and increase following distance
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C
Turn on high beams and drive normally
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D
Stay in the same speed without adjustments
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QUESTION 8 / 25
What should you do to all connections and wheels when loading or unloading chlorine hazmat?
Choose one answer below.
A
Secure all connections and inflate wheels
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B
Unhook connections and chock wheels
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C
Inspect connections and clean wheels
✓
D
Lubricate connections and check tire pressure
✓
QUESTION 9 / 25
What action should be taken before making a turn with a large vehicle?
Choose one answer below.
A
Honk the horn
✓
B
Check all mirrors and blind spots
✓
C
Speed up
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D
Signal 5 seconds before turning
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QUESTION 10 / 25
How should you load cargo in a truck?
Choose one answer below.
A
Balanced in the back
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B
high center of gravity for stability
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C
Balanced in the center and as low as possible
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D
All cargo stacked to one side
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QUESTION 11 / 25
What is the process for obtaining a Class A license?
Choose one answer below.
A
Only pass a written test
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B
Pass a written test, a skills test, and a medical examination
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C
Complete a driving course
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D
Attend a workshop on driving safety
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QUESTION 12 / 25
At 55 mph, how long does it typically take for the perception time in the stopping distance calculation?
Choose one answer below.
A
1 second
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B
3/4 second
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C
2 seconds
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D
1.5 seconds
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QUESTION 13 / 25
How far must you be away from a bridge, tunnel, gathering place, fire, or building when parked with explosives?
Choose one answer below.
A
150 feet
✓
B
250 feet
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C
300 feet
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D
500 feet
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QUESTION 14 / 25
What is the stopping time for a 40-foot truck traveling under 40 mph?
Choose one answer below.
A
2 seconds
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B
4 seconds
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C
6 seconds
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D
8 seconds
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QUESTION 15 / 25
How long should it take to build air pressure from 85 to 100 psi in a dual air system?
Choose one answer below.
A
30 seconds
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B
45 seconds
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C
60 seconds
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D
90 seconds
✓
QUESTION 16 / 25
How should a driver respond to a driving emergency?
Choose one answer below.
A
Stay calm and assess the situation
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B
Panicking and braking hard
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C
Accelerate to escape
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D
Swerving abruptly
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QUESTION 17 / 25
How should you check the functionality of the trailer emergency brakes?
Choose one answer below.
A
Release the parking brakes
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B
Pull out the trailer air supply knob and gently pull on the trailer
✓
C
Drive the trailer forward slowly
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D
Examine brakes while stationary
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QUESTION 18 / 25
How should you communicate your intentions to other drivers?
Choose one answer below.
A
Use your horn only
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B
Just make eye contact
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C
Use turn signals, brake lights, and hand signals
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D
Speed up to indicate urgency
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QUESTION 19 / 25
How should you perform a hydraulic brake check?
Choose one answer below.
A
Pump the pedal 2 times
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B
Pump the pedal 3 times and hold for 5 seconds
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C
Pump the pedal 4 times and release
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D
Press the pedal once and release
✓
QUESTION 20 / 25
How can you reduce the risk of rollover accidents?
Choose one answer below.
A
Keep loads high and stacked precariously.
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B
Keep loads low and within weight limits.
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C
Drive with heavy loads only on weekends.
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D
Increase speed while cornering.
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QUESTION 21 / 25
How can a driver prepare to avoid potential hazards following an engine failure?
Choose one answer below.
A
By choosing a wide open area to stop
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B
By slowing down instead of stopping
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C
By stopping in the middle of the road
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D
By waiting in the vehicle with the doors locked
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QUESTION 22 / 25
What should you do to prevent tire blowouts?
Choose one answer below.
A
Regularly check tire pressure and tread condition.
✓
B
Only check tires when light is low.
✓
C
Have tires rotated only at specific intervals.
✓
D
Ignore pressure and focus on tread only.
✓
QUESTION 23 / 25
What should you do when approaching a railroad crossing?
Choose one answer below.
A
Stop and wait for a signal
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B
Slow down, look in both directions, and listen for trains
✓
C
Speed up to get across quickly
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D
Ignore the crossing if no train is visible
✓
QUESTION 24 / 25
What is the proper way to secure a load?
Choose one answer below.
A
Loosely pile it in the back
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B
Use straps, chains, or ropes to properly secure the load
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C
Rely on the trailer's weight alone
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D
Use a single bungee cord
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QUESTION 25 / 25
How can driving fatigue be effectively managed for long-distance drivers?
Choose one answer below.
A
Take regular breaks, stay hydrated, and get adequate sleep before driving
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B
Rely on caffeine to stay awake while driving
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C
Drive at a constant speed without stopping
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D
Listen to loud music to stay alert
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