CDL PERMIT TEST 2025 QUESTIONS
100% ANSWERED.
What is the most important reason for doing a vehicle inspection - ANSWERTo ensure
the vehicle is safe to drive and roadworthy.
What things should you check during a trip - ANSWERTires, brakes, lights, connections
to trailer, trailer coupling devices, cargo securement devices(tarps, canvass, or straps)
Name some key steering system parts - ANSWERSteering wheel, steering shaft, gear
box, hydraulic fluid reservoir, pitman arm, drag link, steering knuckle, spindle, power
steering cylinder, steering arm, tie rod
Name some suspension system defects - ANSWERMissing or broken leaf springs,
leaking shock absorbers, broken spring hangers, torque rod (arm, ubolts, spring
hangers, or other axle positioning parts) cracked or damaged
Name three kinds of emergency equipment you must have - ANSWERFire extinguisher,
3 red triangles, spare fuses, flare
What is the minimum tread depth for front tires? For other tires? - ANSWER4/32" for
front tires, 2/32" for all others
Name some things you should check on the front of your vehicle during the walk around
inspection - ANSWERCondition of axle and steering system (grab for looseness),
condition of the windshield (clean/dirty, damaged, wiper arms, wiper blades, and lights
& reflectors (amber at front for clearance and reflectors, white or amber for turn signal)
What should wheel bearing seals be checked for? - ANSWERLeaks
How many red reflective triangles should you carry? - ANSWERThree
How do you test hydraulic brakes for leaks? - ANSWERPump three times, hold brake
down for 5 seconds. Brakes should hold, if not there is a problem.
Why put the starter switch key in your
pocket during the pre-trip inspection? - ANSWERSo no one moves the truck while you
are inspecting it.
Why should you back toward the driver's
side? - ANSWERIt is safer because the driver can see more
If stopped on a hill, how can you start
, moving without rolling back? - ANSWEREngage parking brake or clutch before
removing foot from brake
When backing, why is it important to use a
helper? - ANSWERThe helper can see more than the driver, including blind spots, safer
What's the most important hand signal that
you and the helper should agree on? - ANSWERStop
What are the two special conditions where
you should downshift? - ANSWERBefore a downward grade, and slowing for a curve
When should you downshift automatic
transmissions? - ANSWERBefore coming to a downward grade
Retarders keep you from skidding when
the road is slippery. True or False? - ANSWERFalse
What are the two ways to know when to
shift? - ANSWERRPM or MPH
How far ahead does the manual say you
should look? - ANSWER12-15 seconds
What are two main things to look for
ahead? - ANSWERLook for traffic or other hazards in the road
What's your most important way to see the
sides and rear of your vehicle? - ANSWERAdjust mirrors when the trailer is straight for
best viewing angles
What does "communicating" mean in safe
driving? - ANSWERUsing signals, horn, or lights to warn drivers of hazards or changes
in driving such as changing lanes, slowing down, accidents, etc
Where should your reflectors be placed
when stopped on a divided highway? - ANSWERBehind the vehicle, 10ft, 100ft, 200ft
What three things add up to total stopping
distance? - ANSWERPerception Distance + Reaction Distance +
Braking Distance
If you go twice as fast, will your stopping
distance increase by two or four times? - ANSWERFour times
Empty trucks have the best braking. True
100% ANSWERED.
What is the most important reason for doing a vehicle inspection - ANSWERTo ensure
the vehicle is safe to drive and roadworthy.
What things should you check during a trip - ANSWERTires, brakes, lights, connections
to trailer, trailer coupling devices, cargo securement devices(tarps, canvass, or straps)
Name some key steering system parts - ANSWERSteering wheel, steering shaft, gear
box, hydraulic fluid reservoir, pitman arm, drag link, steering knuckle, spindle, power
steering cylinder, steering arm, tie rod
Name some suspension system defects - ANSWERMissing or broken leaf springs,
leaking shock absorbers, broken spring hangers, torque rod (arm, ubolts, spring
hangers, or other axle positioning parts) cracked or damaged
Name three kinds of emergency equipment you must have - ANSWERFire extinguisher,
3 red triangles, spare fuses, flare
What is the minimum tread depth for front tires? For other tires? - ANSWER4/32" for
front tires, 2/32" for all others
Name some things you should check on the front of your vehicle during the walk around
inspection - ANSWERCondition of axle and steering system (grab for looseness),
condition of the windshield (clean/dirty, damaged, wiper arms, wiper blades, and lights
& reflectors (amber at front for clearance and reflectors, white or amber for turn signal)
What should wheel bearing seals be checked for? - ANSWERLeaks
How many red reflective triangles should you carry? - ANSWERThree
How do you test hydraulic brakes for leaks? - ANSWERPump three times, hold brake
down for 5 seconds. Brakes should hold, if not there is a problem.
Why put the starter switch key in your
pocket during the pre-trip inspection? - ANSWERSo no one moves the truck while you
are inspecting it.
Why should you back toward the driver's
side? - ANSWERIt is safer because the driver can see more
If stopped on a hill, how can you start
, moving without rolling back? - ANSWEREngage parking brake or clutch before
removing foot from brake
When backing, why is it important to use a
helper? - ANSWERThe helper can see more than the driver, including blind spots, safer
What's the most important hand signal that
you and the helper should agree on? - ANSWERStop
What are the two special conditions where
you should downshift? - ANSWERBefore a downward grade, and slowing for a curve
When should you downshift automatic
transmissions? - ANSWERBefore coming to a downward grade
Retarders keep you from skidding when
the road is slippery. True or False? - ANSWERFalse
What are the two ways to know when to
shift? - ANSWERRPM or MPH
How far ahead does the manual say you
should look? - ANSWER12-15 seconds
What are two main things to look for
ahead? - ANSWERLook for traffic or other hazards in the road
What's your most important way to see the
sides and rear of your vehicle? - ANSWERAdjust mirrors when the trailer is straight for
best viewing angles
What does "communicating" mean in safe
driving? - ANSWERUsing signals, horn, or lights to warn drivers of hazards or changes
in driving such as changing lanes, slowing down, accidents, etc
Where should your reflectors be placed
when stopped on a divided highway? - ANSWERBehind the vehicle, 10ft, 100ft, 200ft
What three things add up to total stopping
distance? - ANSWERPerception Distance + Reaction Distance +
Braking Distance
If you go twice as fast, will your stopping
distance increase by two or four times? - ANSWERFour times
Empty trucks have the best braking. True
