CDL Test UPDATED ACTUAL Exam
Questions and CORRECT Answers
Seven-step Inspection Method - CORRECT ANSWER - Step 1: Vehicle Overview
Step 2: Check Engine Compartment
Step 3: Start Engine and Inspect Inside the Cab
Step 4: Turn Off Engine and Check Lights
Step 5: Do Walkaround Inspection
Step 6: Check Signal Lights
Step 7: Start the Engine and Check
What is the most important reason for doing a
vehicle inspection? - CORRECT ANSWER - Safety is the most important reason you
inspect your
vehicle, safety for yourself and for other road users.
What things should you check during a trip? - CORRECT ANSWER - • Watch gauges for
signs of trouble.
• Use your senses to check for problems (look, listen,
smell, feel).
• Check critical items when you stop: tires, brakes, gauges, etc..
Name some key steering system parts. - CORRECT ANSWER - steering column, steering
gear box, or tie rods, steering wheel
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.
What three kinds of emergency equipment must
you have? - CORRECT ANSWER - • Fire extinguisher(s).
• Spare electrical fuses (unless equipped with circuit
breakers).
• Warning devices for parked vehicles (for example,
three reflective warning triangles)
What is the minimum 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.
• Condition of steering system.
• Condition of windshield.
• Lights and reflectors.
What should wheel bearing seals be checked for? - CORRECT ANSWER - • Wheel
bearing/seals not leaking.
How many red reflective triangles should you carry? - CORRECT ANSWER -3
, How do you test hydraulic brakes for leaks? - CORRECT ANSWER - pump the brake
pedal three times. Then apply firm pressure to the pedal and hold for five seconds. The pedal
should not move. If it does, there may be a leak or other problem.
Safe operation of a commercial vehicle requires skill in: - CORRECT ANSWER -•
Accelerating.
• Steering.
• Stopping.
• Backing safely.
Why should you back toward the driver's side? - CORRECT ANSWER - Back to the
driver's side so you can see better. Backing toward the right side is very dangerous because you
can't see as well. If you back and turn toward the driver's side, you can watch the rear of your
vehicle by looking out the side window.
If stopped on a hill, how can you start moving
without rolling back? - CORRECT ANSWER - put on the 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. On a tractor-trailer equipped with a trailer brake
hand valve, the hand valve can be applied to keep from rolling back.
When backing, why is it important to use a helper - CORRECT ANSWER - There are
blind spots you can't see. That's why a helper is
important. The helper should stand near the back of your
vehicle where you can see the helper.
What's the most important hand signal that you
and the helper should agree on? - CORRECT ANSWER - Stop
What are the two special conditions where you
should downshift? - CORRECT ANSWER - 1. going starting down a hill
Questions and CORRECT Answers
Seven-step Inspection Method - CORRECT ANSWER - Step 1: Vehicle Overview
Step 2: Check Engine Compartment
Step 3: Start Engine and Inspect Inside the Cab
Step 4: Turn Off Engine and Check Lights
Step 5: Do Walkaround Inspection
Step 6: Check Signal Lights
Step 7: Start the Engine and Check
What is the most important reason for doing a
vehicle inspection? - CORRECT ANSWER - Safety is the most important reason you
inspect your
vehicle, safety for yourself and for other road users.
What things should you check during a trip? - CORRECT ANSWER - • Watch gauges for
signs of trouble.
• Use your senses to check for problems (look, listen,
smell, feel).
• Check critical items when you stop: tires, brakes, gauges, etc..
Name some key steering system parts. - CORRECT ANSWER - steering column, steering
gear box, or tie rods, steering wheel
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.
What three kinds of emergency equipment must
you have? - CORRECT ANSWER - • Fire extinguisher(s).
• Spare electrical fuses (unless equipped with circuit
breakers).
• Warning devices for parked vehicles (for example,
three reflective warning triangles)
What is the minimum 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.
• Condition of steering system.
• Condition of windshield.
• Lights and reflectors.
What should wheel bearing seals be checked for? - CORRECT ANSWER - • Wheel
bearing/seals not leaking.
How many red reflective triangles should you carry? - CORRECT ANSWER -3
, How do you test hydraulic brakes for leaks? - CORRECT ANSWER - pump the brake
pedal three times. Then apply firm pressure to the pedal and hold for five seconds. The pedal
should not move. If it does, there may be a leak or other problem.
Safe operation of a commercial vehicle requires skill in: - CORRECT ANSWER -•
Accelerating.
• Steering.
• Stopping.
• Backing safely.
Why should you back toward the driver's side? - CORRECT ANSWER - Back to the
driver's side so you can see better. Backing toward the right side is very dangerous because you
can't see as well. If you back and turn toward the driver's side, you can watch the rear of your
vehicle by looking out the side window.
If stopped on a hill, how can you start moving
without rolling back? - CORRECT ANSWER - put on the 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. On a tractor-trailer equipped with a trailer brake
hand valve, the hand valve can be applied to keep from rolling back.
When backing, why is it important to use a helper - CORRECT ANSWER - There are
blind spots you can't see. That's why a helper is
important. The helper should stand near the back of your
vehicle where you can see the helper.
What's the most important hand signal that you
and the helper should agree on? - CORRECT ANSWER - Stop
What are the two special conditions where you
should downshift? - CORRECT ANSWER - 1. going starting down a hill
