Illinois CDL Drivers Actual Exam Latest
Update 2024-2025 Questions and
Correct Answers Rated A+
What is the most important reason for doing a vehicle inspection?
-answer-safety
What things should you check during a trip? -answer-tires,
brakes, lights and reflectors, brake and electrical connections to
trailer, trailer coupling devices, cargo securement devices.
Name some key steering system parts. -answer-steering wheel,
steering arms, steering wheel shaft, tie rod, steering gear box,
pitman arm, drag link, steering ring knuckle, spindle.
Name some suspension system defects. -answer-spring hangers
that move, cracked or broken spring hangers, missing or broken
leaves, leaking shock absorbers, torque rod arm
What three kinds of emergency equipment must you have? -
answer-fire extinguisher, spare fuses, warning devices (triangles)
What is the minimum tread depth for front tires?for other tires? -
answer-front 4/32 rear 2/32
Name some things you should check on the front of your vehicle
during the walk-around inspection. -answer-condition of front axle,
steering system, windshield, lights and reflectors
,What should wheel bearing seals be checked for? -answer-not
leaking
How many red reflective triangles should you carry? -answer-3
How do you test hydraulic brakes for leaks? -answer-pump break
pedal 3 times, then apply firm pressure to pedal and hold for 5
seconds. The pedal should not move.
Why put the starter switch key in your pocket during the pre-trip
inspection? -answer-so no one can steal your vehicle.
Why should you back toward the driver's side? -answer-so you
can see better.
If stopped on a hill, how can you start moving without rolling
back? -answer-partly engage the clutch before you take your right
foot off the brake.
When backing, why is it important to use a helper? -answer-so
they can help you see and so they can check your blind spots.
What's the most important hand signal that you and the helper
should agree on? -answer-stop
What are the two special conditions where you should downshift?
-answer-before starting down a hill and before entering a curve.
, When should you downshift automatic transmissions? -answer-
you can select a low range to get greater braking when going
down grades.
Retarders keep you from skidding when the road is slippery. True
or false? -answer-false
What are the two ways to know when to shift? -answer-rpm and
mph
How far ahead does the manual say you should look? -answer-
12-15 seconds
What are two main things to look for ahead? -answer-vehicles
coming onto the highway, into your lane or turning and brake
lights.
What's your most important way to see the sides and rear of your
vehicle? -answer-check your mirrors.
What does "communicating" mean in safe driving? -answer-signal
your intentions.
Where should your reflectors be placed when stopped on a
divided highway? -answer-10 feet, 100 feet, 200 feet toward the
approaching traffic.
What three things add up to total stopping distance? -answer-
perception, reaction, braking.
Update 2024-2025 Questions and
Correct Answers Rated A+
What is the most important reason for doing a vehicle inspection?
-answer-safety
What things should you check during a trip? -answer-tires,
brakes, lights and reflectors, brake and electrical connections to
trailer, trailer coupling devices, cargo securement devices.
Name some key steering system parts. -answer-steering wheel,
steering arms, steering wheel shaft, tie rod, steering gear box,
pitman arm, drag link, steering ring knuckle, spindle.
Name some suspension system defects. -answer-spring hangers
that move, cracked or broken spring hangers, missing or broken
leaves, leaking shock absorbers, torque rod arm
What three kinds of emergency equipment must you have? -
answer-fire extinguisher, spare fuses, warning devices (triangles)
What is the minimum tread depth for front tires?for other tires? -
answer-front 4/32 rear 2/32
Name some things you should check on the front of your vehicle
during the walk-around inspection. -answer-condition of front axle,
steering system, windshield, lights and reflectors
,What should wheel bearing seals be checked for? -answer-not
leaking
How many red reflective triangles should you carry? -answer-3
How do you test hydraulic brakes for leaks? -answer-pump break
pedal 3 times, then apply firm pressure to pedal and hold for 5
seconds. The pedal should not move.
Why put the starter switch key in your pocket during the pre-trip
inspection? -answer-so no one can steal your vehicle.
Why should you back toward the driver's side? -answer-so you
can see better.
If stopped on a hill, how can you start moving without rolling
back? -answer-partly engage the clutch before you take your right
foot off the brake.
When backing, why is it important to use a helper? -answer-so
they can help you see and so they can check your blind spots.
What's the most important hand signal that you and the helper
should agree on? -answer-stop
What are the two special conditions where you should downshift?
-answer-before starting down a hill and before entering a curve.
, When should you downshift automatic transmissions? -answer-
you can select a low range to get greater braking when going
down grades.
Retarders keep you from skidding when the road is slippery. True
or false? -answer-false
What are the two ways to know when to shift? -answer-rpm and
mph
How far ahead does the manual say you should look? -answer-
12-15 seconds
What are two main things to look for ahead? -answer-vehicles
coming onto the highway, into your lane or turning and brake
lights.
What's your most important way to see the sides and rear of your
vehicle? -answer-check your mirrors.
What does "communicating" mean in safe driving? -answer-signal
your intentions.
Where should your reflectors be placed when stopped on a
divided highway? -answer-10 feet, 100 feet, 200 feet toward the
approaching traffic.
What three things add up to total stopping distance? -answer-
perception, reaction, braking.
