CDL - Section 2 Exam with all Correct & 100% Verified
Answers |Latest Update |Already Graded A+
What is the most important reason for doing a vehicle inspection? ✔Correct Answer-Safety
What things should you check during a trip? ✔Correct Answer-Instruments, air pressure gauge,
temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/ cargo covers, lights.
Name some key steering system parts. ✔Correct Answer-Steering wheel, tie rod, steering shaft,
hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm,
power steering cylinder.
Name some suspension system defects. ✔Correct Answer-Spring hangers that allow movement of
axle from proper position, cracked or broken spring hangers, missing or broken leaves in any leaf
spring, leaking shock absorbers, air suspension systems that are damaged and or leaking, any parts
of the suspension or frame that is cracked or broden.
What three kinds of emergency equipment must you have? ✔Correct Answer-Fire extinguisher,
three red reflective triangles, spare electrical fuses (unless vehicle has circuit breaker)
What is the minimun tread depth for front tires? For other tires? ✔Correct Answer-You need at
least 4/32-inch tread depth in every major groove on front tires. You need
2/32 inch on other tires.
Name some things you should check on the front of your vehicle during the walk-around inspection.
✔Correct Answer-Condition of front axle, steering system, and windshield; lights and reflectors; and
right front turn signal light clean, operating, and amber or white
What should wheel bearing seals be checked for? ✔Correct Answer-not leaking
How many red reflective triangles should you carry? ✔Correct Answer-Three
How do you test hydraulic brakes for leaks? ✔Correct Answer-With the vehicle stopped, pump the
pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves.
Why put the starter switch key in your pocket during the pre-trip inspection? ✔Correct Answer-to
prevent someone from moving the truck while you are in it
WHY SHOULD YOU BACK TOWARD THE DRIVER'S SIDE? ✔Correct Answer-So you can see better,
watch rear out of side window
If you stopped on a hill, how can you start moving without rolling back? ✔Correct Answer-Partly
engage the clutch before you take your foot off the brake. Put on parking brake whenever necessary
to keep from rolling back. Release the parking brake only when you have applied enough engine
power to keep from rolling back. (2.2.1)
When backing, why is it important to use a helper? ✔Correct Answer-Blind spots (2.2.4)
, What's the most important hand signal that you and the helper should agree on? ✔Correct
Answer-Stop (2.2.4)
What are the two special conditions where you should downshift? ✔Correct Answer-before
starting down a hill and before entering a curve (2.3.1)
When should you downshift automatic transmissions? ✔Correct Answer-going down grades (2.3.3)
Retarders keep you from skidding when the road is slippery. True or False ✔Correct Answer-false
(2.3.4)
What are the two ways to know when to shift? ✔Correct Answer-engine speed (rpm) & road speed
(mph) (2.3.1)
How far ahead does the manual say you should look? ✔Correct Answer-12 to 15 seconds ahead,
which means the distance you would travel in 12 to 15 seconds. At slower speeds, that's about a
block. At highway speeds it's about a quarter of a mile.
What are two main things to look for ahead? ✔Correct Answer-stopping or changing lanes and
knowing what traffic is doing (2.4.1)
What's your most important way to see the sides and rear of your vehicle? ✔Correct Answer-
mirrors (2.4.2)
What does "communicating" mean in safe driving? ✔Correct Answer-signal your intentions and
communicate your presence (2.5.1 and 2.5.2)
Where should your reflectors be placed when stopped on a divided highway? ✔Correct Answer-
10', 100' & 200' to rear (figure 2.9)
What three things add up to total stopping distance? ✔Correct Answer-perception distance +
reaction distance + braking distance (2.6.1)
If you go twice as fast, will your stopping distance increase by two or four times? ✔Correct Answer-
four (2.6.1)
Empty trucks have the best braking. True or False? ✔Correct Answer-False - Empty trucks require
greater stopping distances because an empty vehicle has less traction, false- because they have less
traction (not the case with buses)
What is hydroplaning? ✔Correct Answer-Tires lose their contact with the road and have little or no
traction. You can regain control by releasing the accelerator and pushing in the clutch. (2.6.2)
What is "black ice"? ✔Correct Answer-thin layer that is clear enough that you can see the road
underneath it. It makes the road look wet. (2.6.2)
How do you find out how many seconds of following distance space you have? ✔Correct Answer-1
second per 10 feet of vehicle. Add 1 second above 40 mph. (2.7.1)
If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you
allow? ✔Correct Answer-4 seconds (2.7.1)
Answers |Latest Update |Already Graded A+
What is the most important reason for doing a vehicle inspection? ✔Correct Answer-Safety
What things should you check during a trip? ✔Correct Answer-Instruments, air pressure gauge,
temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/ cargo covers, lights.
Name some key steering system parts. ✔Correct Answer-Steering wheel, tie rod, steering shaft,
hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm,
power steering cylinder.
Name some suspension system defects. ✔Correct Answer-Spring hangers that allow movement of
axle from proper position, cracked or broken spring hangers, missing or broken leaves in any leaf
spring, leaking shock absorbers, air suspension systems that are damaged and or leaking, any parts
of the suspension or frame that is cracked or broden.
What three kinds of emergency equipment must you have? ✔Correct Answer-Fire extinguisher,
three red reflective triangles, spare electrical fuses (unless vehicle has circuit breaker)
What is the minimun tread depth for front tires? For other tires? ✔Correct Answer-You need at
least 4/32-inch tread depth in every major groove on front tires. You need
2/32 inch on other tires.
Name some things you should check on the front of your vehicle during the walk-around inspection.
✔Correct Answer-Condition of front axle, steering system, and windshield; lights and reflectors; and
right front turn signal light clean, operating, and amber or white
What should wheel bearing seals be checked for? ✔Correct Answer-not leaking
How many red reflective triangles should you carry? ✔Correct Answer-Three
How do you test hydraulic brakes for leaks? ✔Correct Answer-With the vehicle stopped, pump the
pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves.
Why put the starter switch key in your pocket during the pre-trip inspection? ✔Correct Answer-to
prevent someone from moving the truck while you are in it
WHY SHOULD YOU BACK TOWARD THE DRIVER'S SIDE? ✔Correct Answer-So you can see better,
watch rear out of side window
If you stopped on a hill, how can you start moving without rolling back? ✔Correct Answer-Partly
engage the clutch before you take your foot off the brake. Put on parking brake whenever necessary
to keep from rolling back. Release the parking brake only when you have applied enough engine
power to keep from rolling back. (2.2.1)
When backing, why is it important to use a helper? ✔Correct Answer-Blind spots (2.2.4)
, What's the most important hand signal that you and the helper should agree on? ✔Correct
Answer-Stop (2.2.4)
What are the two special conditions where you should downshift? ✔Correct Answer-before
starting down a hill and before entering a curve (2.3.1)
When should you downshift automatic transmissions? ✔Correct Answer-going down grades (2.3.3)
Retarders keep you from skidding when the road is slippery. True or False ✔Correct Answer-false
(2.3.4)
What are the two ways to know when to shift? ✔Correct Answer-engine speed (rpm) & road speed
(mph) (2.3.1)
How far ahead does the manual say you should look? ✔Correct Answer-12 to 15 seconds ahead,
which means the distance you would travel in 12 to 15 seconds. At slower speeds, that's about a
block. At highway speeds it's about a quarter of a mile.
What are two main things to look for ahead? ✔Correct Answer-stopping or changing lanes and
knowing what traffic is doing (2.4.1)
What's your most important way to see the sides and rear of your vehicle? ✔Correct Answer-
mirrors (2.4.2)
What does "communicating" mean in safe driving? ✔Correct Answer-signal your intentions and
communicate your presence (2.5.1 and 2.5.2)
Where should your reflectors be placed when stopped on a divided highway? ✔Correct Answer-
10', 100' & 200' to rear (figure 2.9)
What three things add up to total stopping distance? ✔Correct Answer-perception distance +
reaction distance + braking distance (2.6.1)
If you go twice as fast, will your stopping distance increase by two or four times? ✔Correct Answer-
four (2.6.1)
Empty trucks have the best braking. True or False? ✔Correct Answer-False - Empty trucks require
greater stopping distances because an empty vehicle has less traction, false- because they have less
traction (not the case with buses)
What is hydroplaning? ✔Correct Answer-Tires lose their contact with the road and have little or no
traction. You can regain control by releasing the accelerator and pushing in the clutch. (2.6.2)
What is "black ice"? ✔Correct Answer-thin layer that is clear enough that you can see the road
underneath it. It makes the road look wet. (2.6.2)
How do you find out how many seconds of following distance space you have? ✔Correct Answer-1
second per 10 feet of vehicle. Add 1 second above 40 mph. (2.7.1)
If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you
allow? ✔Correct Answer-4 seconds (2.7.1)
