ILLINOIS CLASS B NON-CDL
EXAMINATION QUESTIONS AND
ANSWERS
1. What is the maximum Gross Vehicle Weight Rating (GVWR) a driver can operate with an
Illinois Class B Non-CDL?
A. Any weight over 26,001 lbs, towing a vehicle over 10,000 lbs
B. Any weight over 26,001 lbs, towing a vehicle not in excess of 10,000 lbs
C. Only vehicles between 16,001 and 26,000 lbs
D. Any combination of vehicles under 26,000 lbs
Answer: B
Conceptual Explanation: Class B is required for a single vehicle with a GVWR of 26,001 or
more pounds, or any such vehicle towing a vehicle not in excess of 10,000 pounds.
2. Under Illinois law, what is the maximum legal width for any vehicle (excluding mirrors and
safety devices)?
A. 8 feet 0 inches
B. 9 feet 0 inches
,C. 8 feet 6 inches
D. 102.4 inches
Answer: C
Conceptual Explanation: The maximum legal width for any vehicle in Illinois is 8 feet 6
inches (102 inches).
3. What is the maximum legal height for all vehicles on all highways in Illinois?
A. 15 feet 0 inches
B. 14 feet 0 inches
C. 12 feet 6 inches
D. 13 feet 6 inches
Answer: D
Conceptual Explanation: The maximum height for all vehicles is 13 feet 6 inches from the
road surface to the top of the vehicle or load.
4. What is the minimum tread depth required for the front tires of a Class B vehicle?
A. 2/32 inch
B. 3/32 inch
C. 4/32 inch
D. 6/32 inch
, Answer: C
Conceptual Explanation: Front tires require at least 4/32 inch of tread depth. All other
tires require 2/32 inch.
5. When placing emergency reflectors on a divided highway, at what distances should they be
placed?
A. 50 feet, 100 feet, and 500 feet
B. 10 feet, 50 feet, and 100 feet
C. 10 feet, 100 feet, and 200 feet toward the approaching traffic
D. 100 feet in front and 100 feet behind
Answer: C
Conceptual Explanation: On a divided highway, reflectors must be placed at 10 feet, 100
feet, and 200 feet toward the approaching traffic.
6. Which of the following describes ‘Air Brake Lag’ distance?
A. The distance traveled while your brain realizes a hazard
B. The distance the vehicle travels while the air flows through the lines to the brakes
C. The distance traveled after the brakes are physically applied
D. The distance between the tractor and the trailer
Answer: B
EXAMINATION QUESTIONS AND
ANSWERS
1. What is the maximum Gross Vehicle Weight Rating (GVWR) a driver can operate with an
Illinois Class B Non-CDL?
A. Any weight over 26,001 lbs, towing a vehicle over 10,000 lbs
B. Any weight over 26,001 lbs, towing a vehicle not in excess of 10,000 lbs
C. Only vehicles between 16,001 and 26,000 lbs
D. Any combination of vehicles under 26,000 lbs
Answer: B
Conceptual Explanation: Class B is required for a single vehicle with a GVWR of 26,001 or
more pounds, or any such vehicle towing a vehicle not in excess of 10,000 pounds.
2. Under Illinois law, what is the maximum legal width for any vehicle (excluding mirrors and
safety devices)?
A. 8 feet 0 inches
B. 9 feet 0 inches
,C. 8 feet 6 inches
D. 102.4 inches
Answer: C
Conceptual Explanation: The maximum legal width for any vehicle in Illinois is 8 feet 6
inches (102 inches).
3. What is the maximum legal height for all vehicles on all highways in Illinois?
A. 15 feet 0 inches
B. 14 feet 0 inches
C. 12 feet 6 inches
D. 13 feet 6 inches
Answer: D
Conceptual Explanation: The maximum height for all vehicles is 13 feet 6 inches from the
road surface to the top of the vehicle or load.
4. What is the minimum tread depth required for the front tires of a Class B vehicle?
A. 2/32 inch
B. 3/32 inch
C. 4/32 inch
D. 6/32 inch
, Answer: C
Conceptual Explanation: Front tires require at least 4/32 inch of tread depth. All other
tires require 2/32 inch.
5. When placing emergency reflectors on a divided highway, at what distances should they be
placed?
A. 50 feet, 100 feet, and 500 feet
B. 10 feet, 50 feet, and 100 feet
C. 10 feet, 100 feet, and 200 feet toward the approaching traffic
D. 100 feet in front and 100 feet behind
Answer: C
Conceptual Explanation: On a divided highway, reflectors must be placed at 10 feet, 100
feet, and 200 feet toward the approaching traffic.
6. Which of the following describes ‘Air Brake Lag’ distance?
A. The distance traveled while your brain realizes a hazard
B. The distance the vehicle travels while the air flows through the lines to the brakes
C. The distance traveled after the brakes are physically applied
D. The distance between the tractor and the trailer
Answer: B
