CDL Exam | Questions with 100% Correct
Answers | Verified | Latest Update 2026
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Terms in this set (278)
What is the most important reason Safety. Safety for yourself and other road user.
for doing a vehicle inspection?
What things should you check Watch gauges, mirrors, use your senses to check
during a trip? 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 Control arm, steering shaft, pitman arm, steering
parts. wheel, hydraulic fluid reservoir
Name some suspension system Spring hangers that allow movement of axle from
defects 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 Fire extinguisher, spare electrical fuses , warning
equipment must you have? devices for parked vehicles. ( three reflective
triangles, and at least 6 fuses or 3 liquid burning
flares).
,What is the minimum tread depth 4/32 inch on every major groove of front tires.
for front tires? For other tires? 2/32 on other tires. No fabric should show
through the side wall or tread
Name some things you should Clean glass, Clean and secure mirrors, door
check on the front of your vehicle latches or locks work, condition of tire rims and
during the walk around inspection 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 Hub oil level and no leaks
be checked for?
How many red reflective triangles Three
should you carry?
How do you test hydraulic brakes Pump the brake pedal three times, then apply
for leaks? firm pressure to the pedal and hold for five
seconds. The pedal should not move.
Why put the starter switch key in For your saftey
your pocket during the vehicle
inspection?
Why should you back toward the So you can see better. Backing toward the right
driver's side? side or "blind side" is very dangerous because
you can't see as well.
If stopped on a hill, how can you Partly engage the clutch before taking foot off
start moving without rolling back? 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 There are blind spots you cannot see
to use a helper?
What is the most important hand Agree on a signal for stop most importantly.
signal that you and the helper
should agree on?
Retarders keep you from skidding False
when the road is slippery. True or
false?
What are the two ways to know Use engine speed (rpm) or road speed (mph)
when to shift?
When preparing to do a pre-trip True
inspection you must check to see
that the parking brakes are on
and/or chocked
When getting in to start the engine Make sure the parking brake is on, Put the
and inspect inside of the cab you gearshift in neutral (or park if automatic). Start
must? engine and listen for unusual noises.
Look at the gauges- the oil pressure Within seconds
gauge should come up to normal
within how long after starting the
engine?
You should check the following for the steering wheel, accelerator, brake and clutch
looseness, sticking, damage or pads
improper settings.
After inspecting mirrors and Clean and adjust as necessary
windshields for cracks, dirt, illegal
stickers or other obstructions to
see, you should...
Answers | Verified | Latest Update 2026
Save
Terms in this set (278)
What is the most important reason Safety. Safety for yourself and other road user.
for doing a vehicle inspection?
What things should you check Watch gauges, mirrors, use your senses to check
during a trip? 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 Control arm, steering shaft, pitman arm, steering
parts. wheel, hydraulic fluid reservoir
Name some suspension system Spring hangers that allow movement of axle from
defects 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 Fire extinguisher, spare electrical fuses , warning
equipment must you have? devices for parked vehicles. ( three reflective
triangles, and at least 6 fuses or 3 liquid burning
flares).
,What is the minimum tread depth 4/32 inch on every major groove of front tires.
for front tires? For other tires? 2/32 on other tires. No fabric should show
through the side wall or tread
Name some things you should Clean glass, Clean and secure mirrors, door
check on the front of your vehicle latches or locks work, condition of tire rims and
during the walk around inspection 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 Hub oil level and no leaks
be checked for?
How many red reflective triangles Three
should you carry?
How do you test hydraulic brakes Pump the brake pedal three times, then apply
for leaks? firm pressure to the pedal and hold for five
seconds. The pedal should not move.
Why put the starter switch key in For your saftey
your pocket during the vehicle
inspection?
Why should you back toward the So you can see better. Backing toward the right
driver's side? side or "blind side" is very dangerous because
you can't see as well.
If stopped on a hill, how can you Partly engage the clutch before taking foot off
start moving without rolling back? 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 There are blind spots you cannot see
to use a helper?
What is the most important hand Agree on a signal for stop most importantly.
signal that you and the helper
should agree on?
Retarders keep you from skidding False
when the road is slippery. True or
false?
What are the two ways to know Use engine speed (rpm) or road speed (mph)
when to shift?
When preparing to do a pre-trip True
inspection you must check to see
that the parking brakes are on
and/or chocked
When getting in to start the engine Make sure the parking brake is on, Put the
and inspect inside of the cab you gearshift in neutral (or park if automatic). Start
must? engine and listen for unusual noises.
Look at the gauges- the oil pressure Within seconds
gauge should come up to normal
within how long after starting the
engine?
You should check the following for the steering wheel, accelerator, brake and clutch
looseness, sticking, damage or pads
improper settings.
After inspecting mirrors and Clean and adjust as necessary
windshields for cracks, dirt, illegal
stickers or other obstructions to
see, you should...
