Class F - GA study guide actual exam
with correct answers Georgia
driver’s license
INTRODUCTION
This premium exam study bank contains verified actual test questions
designed to help applicants pass the Georgia DDS Class F non-commercial
driver's license written test on their first attempt. The material covers
critical heavy-vehicle operation safety, advanced air brake
configurations, combination vehicle coupling mechanics, and specific
Georgia statutory road laws. Each entry provides an immediate, up-to-
date answer key paired with a highly rigorous explanation to build deep
conceptual understanding and ensure top scores.
Question 1
What is the minimum tread depth required for the front (steering) tires of
a Class F vehicle?
A) 2/32 of an inch
B) 4/32 of an inch
C) 6/32 of an inch
D) 1/32 of an inch
,Answer: B) 4/32 of an inch
Explanation: Georgia DDS regulations dictate that steering axle tires
must have a minimum tread depth of 4/32 of an inch to prevent
hydroplaning and ensure positive steering control. All other tires
require a minimum depth of 2/32 of an inch.
Question 2
What is the minimum tread depth required for the rear (non-steering)
tires of a Class F vehicle?
A) 1/32 of an inch
B) 2/32 of an inch
C) 4/32 of an inch
D) 5/32 of an inch
Answer: B) 2/32 of an inch
Explanation: While the front steering tires require 4/32 of an inch
for steering safety, the rear drive and trailer tires must maintain at
least 2/32 of an inch of tread depth to be legally compliant.
Question 3
When inspecting engine belts, what is the maximum amount of acceptable
play or slack allowed?
A) 1/4 of an inch
B) 1/2 of an inch
,C) 3/4 of an inch
D) 1 inch
Answer: C) 3/4 of an inch
Explanation: Engine belts should be checked for cracking, fraying,
and proper tension. When pressed firmly in the middle, the belt
should not have more than 3/4 of an inch of play.
Question 4
What is the maximum steering wheel play allowed on a standard 20-inch
steering wheel?
A) 5 degrees or 1 inch
B) 10 degrees or 2 inches
C) 15 degrees or 3 inches
D) 20 degrees or 4 inches
Answer: B) 10 degrees or 2 inches
Explanation: If the steering wheel moves more than 10 degrees
(which equates to roughly 2 inches on a standard 20-inch steering
wheel) before the wheels start to turn, it indicates excessive
steering mechanism wear.
Question 5
, Air brake systems add which component to the calculation of total
stopping distance that hydraulic brakes do not have?
A) Perception distance
B) Reaction distance
C) Brake lag distance
D) Effective braking distance
Answer: C) Brake lag distance
Explanation: Air brakes require air to travel through the lines to
push the brake pads against the drums. This introduces "Brake Lag
Distance," which adds roughly 32 feet to your stopping distance at
55 mph.
Question 6
At what air pressure must the air compressor governor cut out?
A) Between 60 and 80 PSI
B) Between 85 and 100 PSI
C) Between 120 and 140 PSI
D) Between 150 and 175 PSI
Answer: C) Between 120 and 140 PSI
Explanation: The safety governor monitors air reservoir pressure
and stops the compressor from pumping when air pressure reaches
its maximum level, typically between 120 and 140 PSI.
with correct answers Georgia
driver’s license
INTRODUCTION
This premium exam study bank contains verified actual test questions
designed to help applicants pass the Georgia DDS Class F non-commercial
driver's license written test on their first attempt. The material covers
critical heavy-vehicle operation safety, advanced air brake
configurations, combination vehicle coupling mechanics, and specific
Georgia statutory road laws. Each entry provides an immediate, up-to-
date answer key paired with a highly rigorous explanation to build deep
conceptual understanding and ensure top scores.
Question 1
What is the minimum tread depth required for the front (steering) tires of
a Class F vehicle?
A) 2/32 of an inch
B) 4/32 of an inch
C) 6/32 of an inch
D) 1/32 of an inch
,Answer: B) 4/32 of an inch
Explanation: Georgia DDS regulations dictate that steering axle tires
must have a minimum tread depth of 4/32 of an inch to prevent
hydroplaning and ensure positive steering control. All other tires
require a minimum depth of 2/32 of an inch.
Question 2
What is the minimum tread depth required for the rear (non-steering)
tires of a Class F vehicle?
A) 1/32 of an inch
B) 2/32 of an inch
C) 4/32 of an inch
D) 5/32 of an inch
Answer: B) 2/32 of an inch
Explanation: While the front steering tires require 4/32 of an inch
for steering safety, the rear drive and trailer tires must maintain at
least 2/32 of an inch of tread depth to be legally compliant.
Question 3
When inspecting engine belts, what is the maximum amount of acceptable
play or slack allowed?
A) 1/4 of an inch
B) 1/2 of an inch
,C) 3/4 of an inch
D) 1 inch
Answer: C) 3/4 of an inch
Explanation: Engine belts should be checked for cracking, fraying,
and proper tension. When pressed firmly in the middle, the belt
should not have more than 3/4 of an inch of play.
Question 4
What is the maximum steering wheel play allowed on a standard 20-inch
steering wheel?
A) 5 degrees or 1 inch
B) 10 degrees or 2 inches
C) 15 degrees or 3 inches
D) 20 degrees or 4 inches
Answer: B) 10 degrees or 2 inches
Explanation: If the steering wheel moves more than 10 degrees
(which equates to roughly 2 inches on a standard 20-inch steering
wheel) before the wheels start to turn, it indicates excessive
steering mechanism wear.
Question 5
, Air brake systems add which component to the calculation of total
stopping distance that hydraulic brakes do not have?
A) Perception distance
B) Reaction distance
C) Brake lag distance
D) Effective braking distance
Answer: C) Brake lag distance
Explanation: Air brakes require air to travel through the lines to
push the brake pads against the drums. This introduces "Brake Lag
Distance," which adds roughly 32 feet to your stopping distance at
55 mph.
Question 6
At what air pressure must the air compressor governor cut out?
A) Between 60 and 80 PSI
B) Between 85 and 100 PSI
C) Between 120 and 140 PSI
D) Between 150 and 175 PSI
Answer: C) Between 120 and 140 PSI
Explanation: The safety governor monitors air reservoir pressure
and stops the compressor from pumping when air pressure reaches
its maximum level, typically between 120 and 140 PSI.
