©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
CDL Exam Questions and Verified Answers
What is the most important reason for doing a vehicle inspection? - Answers✓✓Safety. Safety
for yourself and other road user.
What things should you check during a trip? - Answers✓✓Watch gauges, mirrors, use your
senses to check for problems. Look, listen, and smell. Check critical items when you stop; tires,
wheels, and rims ; brakes, lights and reflectors; brake and electrical connections to trailer.
trailer coupling devices. Cargo securement devices.
Name some key steering system parts. - Answers✓✓Control arm, steering shaft, pitman arm,
steering wheel, hydraulic fluid reservoir
Name some suspension system defects - Answers✓✓Spring hangers that allow movement of
axle from proper position, cracked or broken spring hangers, missing or broken leaves in any
leaf spring. If one-fourth or more are missing, it will put the vehicle out of service. Any defect
could be dangerous.
What three kinds of emergency equipment must you have? - Answers✓✓Fire extinguisher,
spare electrical fuses , warning devices for parked vehicles. ( three reflective triangles, and at
least 6 fuses or 3 liquid burning flares).
What is the minimum tread depth for front tires? For other tires? - Answers✓✓4/32 inch on
every major groove of front tires. 2/32 on other tires. No fabric should show through the side
wall or tread
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
Name some things you should check on the front of your vehicle during the walk around
inspection - Answers✓✓Clean glass, Clean and secure mirrors, door latches or locks work,
condition of tire rims and tires, tight lug nuts, hub oil level is between the add and full mark, no
leaks, springs, shock absorbers, front axle, steering system condition, condition of brakes, spare
tire.
What should wheel bearing seals be checked for? - Answers✓✓Hub oil level and no leaks
How many red reflective triangles should you carry? - Answers✓✓Three
How do you test hydraulic brakes for leaks? - Answers✓✓Pump the brake pedal three times,
then apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
Why put the starter switch key in your pocket during the vehicle inspection? - Answers✓✓For
your saftey
Why should you back toward the driver's side? - Answers✓✓So you can see better. Backing
toward the right side or "blind side" is very dangerous because you can't see as well.
If stopped on a hill, how can you start moving without rolling back? - Answers✓✓Partly
engage the clutch before taking foot off the brake. Put on the parking brake whenever
necessary. Release the parking brake when you have applied enough engine power to keep
from rolling back.
When backing, why is it important to use a helper? - Answers✓✓There are blind spots you
cannot see
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
What is the most important hand signal that you and the helper should agree on? -
Answers✓✓Agree on a signal for stop most importantly.
Retarders keep you from skidding when the road is slippery. True or false? - Answers✓✓False
What are the two ways to know when to shift? - Answers✓✓Use engine speed (rpm) or road
speed (mph)
When preparing to do a pre-trip inspection you must check to see that the parking brakes are on
and/or chocked - Answers✓✓True
When getting in to start the engine and inspect inside of the cab you must? - Answers✓✓Make
sure the parking brake is on, Put the gearshift in neutral (or park if automatic). Start engine and
listen for unusual noises.
Look at the gauges- the oil pressure gauge should come up to normal within how long after
starting the engine? - Answers✓✓Within seconds
You should check the following for looseness, sticking, damage or improper settings. -
Answers✓✓the steering wheel, accelerator, brake and clutch pads
After inspecting mirrors and windshields for cracks, dirt, illegal stickers or other obstructions to
see, you should... - Answers✓✓Clean and adjust as necessary
When checking lights you should... - Answers✓✓Make sure that the parking brake is set, turn
off the engine and take the key with you, turn on the headlights and four way flashers
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
What is the proper way to hold the steering wheel? - Answers✓✓Firmly with both hands on
opposite sides of the wheel.
What are two special conditions where you should down shift - Answers✓✓Before starting
down a hill and before entering a curve.
When should you downshift automatic transmissions - Answers✓✓When going down grades.
How far ahead should you look? - Answers✓✓Most good drivers look 12 to 15 seconds ahead
What are two main things to look for ahead? - Answers✓✓Traffic coming onto the highway,
into your lane, or turning. Brake lights or turn signals
What's your most important way to see the sides and rear of your vehicle? -
Answers✓✓Mirrors
What does "communicating" mean in safe driving? - Answers✓✓Showing other drivers your
intentions
Where should you place reflectors when stopped on a divided highway? - Answers✓✓10 feet
100 feet and 200 feet toward the approaching traffic
What three things add up to total stopping distance? - Answers✓✓Perception distance +
Reaction distance + braking distance. At 55mph it takes 290 feet or 6 seconds.
If you go twice as fast, will your stopping distance increase by two or four times? -
Answers✓✓Four
27/11/2024 11:35AM
CDL Exam Questions and Verified Answers
What is the most important reason for doing a vehicle inspection? - Answers✓✓Safety. Safety
for yourself and other road user.
What things should you check during a trip? - Answers✓✓Watch gauges, mirrors, use your
senses to check for problems. Look, listen, and smell. Check critical items when you stop; tires,
wheels, and rims ; brakes, lights and reflectors; brake and electrical connections to trailer.
trailer coupling devices. Cargo securement devices.
Name some key steering system parts. - Answers✓✓Control arm, steering shaft, pitman arm,
steering wheel, hydraulic fluid reservoir
Name some suspension system defects - Answers✓✓Spring hangers that allow movement of
axle from proper position, cracked or broken spring hangers, missing or broken leaves in any
leaf spring. If one-fourth or more are missing, it will put the vehicle out of service. Any defect
could be dangerous.
What three kinds of emergency equipment must you have? - Answers✓✓Fire extinguisher,
spare electrical fuses , warning devices for parked vehicles. ( three reflective triangles, and at
least 6 fuses or 3 liquid burning flares).
What is the minimum tread depth for front tires? For other tires? - Answers✓✓4/32 inch on
every major groove of front tires. 2/32 on other tires. No fabric should show through the side
wall or tread
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
Name some things you should check on the front of your vehicle during the walk around
inspection - Answers✓✓Clean glass, Clean and secure mirrors, door latches or locks work,
condition of tire rims and tires, tight lug nuts, hub oil level is between the add and full mark, no
leaks, springs, shock absorbers, front axle, steering system condition, condition of brakes, spare
tire.
What should wheel bearing seals be checked for? - Answers✓✓Hub oil level and no leaks
How many red reflective triangles should you carry? - Answers✓✓Three
How do you test hydraulic brakes for leaks? - Answers✓✓Pump the brake pedal three times,
then apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
Why put the starter switch key in your pocket during the vehicle inspection? - Answers✓✓For
your saftey
Why should you back toward the driver's side? - Answers✓✓So you can see better. Backing
toward the right side or "blind side" is very dangerous because you can't see as well.
If stopped on a hill, how can you start moving without rolling back? - Answers✓✓Partly
engage the clutch before taking foot off the brake. Put on the parking brake whenever
necessary. Release the parking brake when you have applied enough engine power to keep
from rolling back.
When backing, why is it important to use a helper? - Answers✓✓There are blind spots you
cannot see
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
What is the most important hand signal that you and the helper should agree on? -
Answers✓✓Agree on a signal for stop most importantly.
Retarders keep you from skidding when the road is slippery. True or false? - Answers✓✓False
What are the two ways to know when to shift? - Answers✓✓Use engine speed (rpm) or road
speed (mph)
When preparing to do a pre-trip inspection you must check to see that the parking brakes are on
and/or chocked - Answers✓✓True
When getting in to start the engine and inspect inside of the cab you must? - Answers✓✓Make
sure the parking brake is on, Put the gearshift in neutral (or park if automatic). Start engine and
listen for unusual noises.
Look at the gauges- the oil pressure gauge should come up to normal within how long after
starting the engine? - Answers✓✓Within seconds
You should check the following for looseness, sticking, damage or improper settings. -
Answers✓✓the steering wheel, accelerator, brake and clutch pads
After inspecting mirrors and windshields for cracks, dirt, illegal stickers or other obstructions to
see, you should... - Answers✓✓Clean and adjust as necessary
When checking lights you should... - Answers✓✓Make sure that the parking brake is set, turn
off the engine and take the key with you, turn on the headlights and four way flashers
, ©Themoon EXAM SOLUTIONS
27/11/2024 11:35AM
What is the proper way to hold the steering wheel? - Answers✓✓Firmly with both hands on
opposite sides of the wheel.
What are two special conditions where you should down shift - Answers✓✓Before starting
down a hill and before entering a curve.
When should you downshift automatic transmissions - Answers✓✓When going down grades.
How far ahead should you look? - Answers✓✓Most good drivers look 12 to 15 seconds ahead
What are two main things to look for ahead? - Answers✓✓Traffic coming onto the highway,
into your lane, or turning. Brake lights or turn signals
What's your most important way to see the sides and rear of your vehicle? -
Answers✓✓Mirrors
What does "communicating" mean in safe driving? - Answers✓✓Showing other drivers your
intentions
Where should you place reflectors when stopped on a divided highway? - Answers✓✓10 feet
100 feet and 200 feet toward the approaching traffic
What three things add up to total stopping distance? - Answers✓✓Perception distance +
Reaction distance + braking distance. At 55mph it takes 290 feet or 6 seconds.
If you go twice as fast, will your stopping distance increase by two or four times? -
Answers✓✓Four
