ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
**Question 1.** Which licence class permits a driver to operate a taxi with up to 10 occupants in British
Columbia?
A) Class 5
B) Class 4 Restricted
C) Class 4 Unrestricted
D) Class 2
Answer: B
Explanation: Class 4 Restricted licences are specifically for taxis, ride-hailing vehicles and ambulances
that carry no more than 10 occupants.
**Question 2.** How often must a commercial driver in BC undergo a medical examination to maintain
a Class 4 licence?
A) Every 2 years
B) Every 5 years
C) Every year
D) Only when a health problem arises
Answer: A
Explanation: The Medical Fitness regulations require a medical exam at least once every two years for
commercial drivers.
**Question 3.** The “Code W” identifier on a driver’s record indicates which of the following?
A) A warning for a minor traffic offence
B) A medical condition that restricts driving in the U.S.
C) A waiver for a commercial licence exam
D) A work-related traffic violation
Answer: B
Explanation: Code W denotes a medical condition that can prohibit the driver from operating a vehicle in
the United States.
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
**Question 4.** What is the minimum age to obtain a Class 4 licence in British Columbia?
A) 16 years
B) 18 years
C) 19 years
D) 21 years
Answer: C
Explanation: Drivers must be at least 19 years old to apply for a Class 4 commercial licence.
**Question 5.** Before upgrading from a Class 5 to a Class 4 licence, a driver must have held the Class 5
licence for at least:
A) 6 months
B) 12 months
C) 18 months
D) 24 months
Answer: B
Explanation: The driver qualification rules require a minimum of 12 months holding a valid Class 5
licence before applying for Class 4.
**Question 6.** Which National Safety Code (NSC) standard primarily addresses driver fatigue
management for commercial passenger vehicles?
A) NSC 1 – Driver Training
B) NSC 2 – Vehicle Inspection
C) NSC 6 – Hours of Service
D) NSC 9 – Cargo Securement
Answer: C
Explanation: NSC 6 sets out the hours-of-service regulations that limit driving time to prevent fatigue.
**Question 7.** When scanning the road ahead, a commercial driver should focus on objects that are
approximately how many seconds ahead?
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
A) 3–5 seconds
B) 6–8 seconds
C) 12–15 seconds
D) 20–25 seconds
Answer: C
Explanation: Scanning 12–15 seconds ahead gives sufficient time to react to hazards for larger vehicles.
**Question 8.** Which mirror adjustment technique best eliminates blind spots for a van?
A) Tilt side mirrors outward until you can just see the side of the vehicle
B) Set mirrors to the “normal” passenger-car position
C) Use an interior rear-view mirror only
D) Install additional wide-angle mirrors on the doors
Answer: A
Explanation: Tilting side mirrors outward expands the field of view and reduces blind spots specific to
larger vehicle bodies.
**Question 9.** The recommended following distance for a fully loaded 12-passenger bus traveling at
80 km/h on a dry highway is:
A) 1 second
B) 2 seconds
C) 3 seconds
D) 4 seconds
Answer: C
Explanation: A 3-second gap provides enough cushion for the increased stopping distance of a heavy
passenger vehicle.
**Question 10.** When negotiating a tight city corner, the rear wheels of a bus tend to:
A) Track exactly the same path as the front wheels
B) Move outward, creating a larger turning radius
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
C) “Cheat” inward, following a shorter path than the front wheels
D) Slip and lose traction
Answer: C
Explanation: Off-tracking causes the rear wheels to follow a tighter arc than the front wheels, which
must be accounted for in tight turns.
**Question 11.** Before entering a sharp curve, a driver should:
A) Shift to a higher gear to increase speed
B) Shift to a lower gear to use engine braking
C) Keep the transmission in neutral
D) Apply the brakes heavily
Answer: B
Explanation: Selecting a lower gear provides engine braking and better control before the curve.
**Question 12.** When descending a steep grade in a fully loaded bus, the most effective method to
control speed is:
A) Riding the service brakes continuously
B) Using the engine brake (retarder) and selecting a low gear
C) Shifting between high and low gears repeatedly
D) Applying the parking brake intermittently
Answer: B
Explanation: Engine brakes and low-gear selection prevent brake fade and maintain a safe descending
speed.
**Question 13.** The correct procedure for backing a bus with a guide (swamper) is:
A) Driver looks over the left shoulder while the guide points with both hands
B) Driver uses mirrors only, no guide needed
C) Driver turns the steering wheel sharply and lets the guide correct the path later
D) Driver backs slowly, maintains a straight line, and follows the guide’s hand signals
Ultimate Exam
**Question 1.** Which licence class permits a driver to operate a taxi with up to 10 occupants in British
Columbia?
A) Class 5
B) Class 4 Restricted
C) Class 4 Unrestricted
D) Class 2
Answer: B
Explanation: Class 4 Restricted licences are specifically for taxis, ride-hailing vehicles and ambulances
that carry no more than 10 occupants.
**Question 2.** How often must a commercial driver in BC undergo a medical examination to maintain
a Class 4 licence?
A) Every 2 years
B) Every 5 years
C) Every year
D) Only when a health problem arises
Answer: A
Explanation: The Medical Fitness regulations require a medical exam at least once every two years for
commercial drivers.
**Question 3.** The “Code W” identifier on a driver’s record indicates which of the following?
A) A warning for a minor traffic offence
B) A medical condition that restricts driving in the U.S.
C) A waiver for a commercial licence exam
D) A work-related traffic violation
Answer: B
Explanation: Code W denotes a medical condition that can prohibit the driver from operating a vehicle in
the United States.
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
**Question 4.** What is the minimum age to obtain a Class 4 licence in British Columbia?
A) 16 years
B) 18 years
C) 19 years
D) 21 years
Answer: C
Explanation: Drivers must be at least 19 years old to apply for a Class 4 commercial licence.
**Question 5.** Before upgrading from a Class 5 to a Class 4 licence, a driver must have held the Class 5
licence for at least:
A) 6 months
B) 12 months
C) 18 months
D) 24 months
Answer: B
Explanation: The driver qualification rules require a minimum of 12 months holding a valid Class 5
licence before applying for Class 4.
**Question 6.** Which National Safety Code (NSC) standard primarily addresses driver fatigue
management for commercial passenger vehicles?
A) NSC 1 – Driver Training
B) NSC 2 – Vehicle Inspection
C) NSC 6 – Hours of Service
D) NSC 9 – Cargo Securement
Answer: C
Explanation: NSC 6 sets out the hours-of-service regulations that limit driving time to prevent fatigue.
**Question 7.** When scanning the road ahead, a commercial driver should focus on objects that are
approximately how many seconds ahead?
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
A) 3–5 seconds
B) 6–8 seconds
C) 12–15 seconds
D) 20–25 seconds
Answer: C
Explanation: Scanning 12–15 seconds ahead gives sufficient time to react to hazards for larger vehicles.
**Question 8.** Which mirror adjustment technique best eliminates blind spots for a van?
A) Tilt side mirrors outward until you can just see the side of the vehicle
B) Set mirrors to the “normal” passenger-car position
C) Use an interior rear-view mirror only
D) Install additional wide-angle mirrors on the doors
Answer: A
Explanation: Tilting side mirrors outward expands the field of view and reduces blind spots specific to
larger vehicle bodies.
**Question 9.** The recommended following distance for a fully loaded 12-passenger bus traveling at
80 km/h on a dry highway is:
A) 1 second
B) 2 seconds
C) 3 seconds
D) 4 seconds
Answer: C
Explanation: A 3-second gap provides enough cushion for the increased stopping distance of a heavy
passenger vehicle.
**Question 10.** When negotiating a tight city corner, the rear wheels of a bus tend to:
A) Track exactly the same path as the front wheels
B) Move outward, creating a larger turning radius
, ICBC Class 4 Commercial Drivers Licence CDL
Ultimate Exam
C) “Cheat” inward, following a shorter path than the front wheels
D) Slip and lose traction
Answer: C
Explanation: Off-tracking causes the rear wheels to follow a tighter arc than the front wheels, which
must be accounted for in tight turns.
**Question 11.** Before entering a sharp curve, a driver should:
A) Shift to a higher gear to increase speed
B) Shift to a lower gear to use engine braking
C) Keep the transmission in neutral
D) Apply the brakes heavily
Answer: B
Explanation: Selecting a lower gear provides engine braking and better control before the curve.
**Question 12.** When descending a steep grade in a fully loaded bus, the most effective method to
control speed is:
A) Riding the service brakes continuously
B) Using the engine brake (retarder) and selecting a low gear
C) Shifting between high and low gears repeatedly
D) Applying the parking brake intermittently
Answer: B
Explanation: Engine brakes and low-gear selection prevent brake fade and maintain a safe descending
speed.
**Question 13.** The correct procedure for backing a bus with a guide (swamper) is:
A) Driver looks over the left shoulder while the guide points with both hands
B) Driver uses mirrors only, no guide needed
C) Driver turns the steering wheel sharply and lets the guide correct the path later
D) Driver backs slowly, maintains a straight line, and follows the guide’s hand signals
