Illinois CDL Drivers Test UPDATED
ACTUAL Exam Questions and CORRECT
Answers
SAFETY - CORRECT ANSWER - What is the most important reason for doing a vehicle
inspection?
TIRES, BRAKES, LIGHTS AND REFLECTORS, BRAKE AND ELECTRICAL
CONNECTIONS TO TRAILER, TRAILER COUPLING DEVICES, CARGO SECUREMENT
DEVICES. - CORRECT ANSWER - What things should you check during a trip?
STEERING WHEEL, STEERING ARMS, STEERING WHEEL SHAFT, TIE ROD,
STEERING GEAR BOX, PITMAN ARM, DRAG LINK, STEERING RING KNUCKLE,
SPINDLE. - CORRECT ANSWER - Name some key steering system parts.
SPRING HANGERS THAT MOVE, CRACKED OR BROKEN SPRING HANGERS,
MISSING OR BROKEN LEAVES, LEAKING SHOCK ABSORBERS, TORQUE ROD ARM -
CORRECT ANSWER - Name some suspension system defects.
FIRE EXTINGUISHER, SPARE FUSES, WARNING DEVICES (TRIANGLES) - CORRECT
ANSWER - What three kinds of emergency equipment must you have?
FRONT 4/32 REAR 2/32 - CORRECT ANSWER - What is the minimum tread depth for
front tires?For other tires?
CONDITION OF FRONT AXLE, STEERING SYSTEM, WINDSHIELD, LIGHTS AND
REFLECTORS - CORRECT ANSWER - Name some things you should check on the
front of your vehicle during the walk-around inspection.
NOT LEAKING - CORRECT ANSWER - What should wheel bearing seals be checked
for?
,3 - CORRECT ANSWER - How many red reflective triangles should you carry?
PUMP BREAK PEDAL 3 TIMES, THEN APPLY FIRM PRESSURE TO PEDAL AND HOLD
FOR 5 SECONDS. THE PEDAL SHOULD NOT MOVE. - CORRECT ANSWER - How
do you test hydraulic brakes for leaks?
SO NO ONE CAN STEAL YOUR VEHICLE. - CORRECT ANSWER - Why put the
starter switch key in your pocket during the pre-trip inspection?
SO YOU CAN SEE BETTER. - CORRECT ANSWER - Why should you back toward the
driver's side?
PARTLY ENGAGE THE CLUTCH BEFORE YOU TAKE YOUR RIGHT FOOT OFF THE
BRAKE. - CORRECT ANSWER - If stopped on a hill, how can you start moving without
rolling back?
SO THEY CAN HELP YOU SEE AND SO THEY CAN CHECK YOUR BLIND SPOTS. -
CORRECT ANSWER - When backing, why is it important to use a helper?
STOP - CORRECT ANSWER - What's the most important hand signal that you and the
helper should agree on?
BEFORE STARTING DOWN A HILL AND BEFORE ENTERING A CURVE. - CORRECT
ANSWER - What are the two special conditions where you should downshift?
YOU CAN SELECT A LOW RANGE TO GET GREATER BRAKING WHEN GOING
DOWN GRADES. - CORRECT ANSWER - When should you downshift automatic
transmissions?
, FALSE - CORRECT ANSWER - Retarders keep you from skidding when the road is
slippery. True or False?
RPM AND MPH - CORRECT ANSWER - What are the two ways to know when to shift?
12-15 SECONDS - CORRECT ANSWER - How far ahead does the manual say you
should look?
VEHICLES COMING ONTO THE HIGHWAY, INTO YOUR LANE OR TURNING AND
BRAKE LIGHTS. - CORRECT ANSWER - What are two main things to look for ahead?
CHECK YOUR MIRRORS. - CORRECT ANSWER - What's your most important way to
see the sides and rear of your vehicle?
SIGNAL YOUR INTENTIONS. - CORRECT ANSWER - What does "communicating"
mean in safe driving?
10 FEET, 100 FEET, 200 FEET TOWARD THE APPROACHING TRAFFIC. - CORRECT
ANSWER - Where should your reflectors be placed when stopped on a divided highway?
PERCEPTION, REACTION, BRAKING. - CORRECT ANSWER - What three things add
up to total stopping distance?
FOUR - CORRECT ANSWER - If you go twice as fast, will your stopping distance
increase by two or four times?
FALSE - CORRECT ANSWER - Empty trucks have the best braking. True or False?
TIRES LOSE CONTACT WITH THE ROAD AND HAVE LITTLE OR ON TRACTION. -
CORRECT ANSWER - What is hydroplaning?
ACTUAL Exam Questions and CORRECT
Answers
SAFETY - CORRECT ANSWER - What is the most important reason for doing a vehicle
inspection?
TIRES, BRAKES, LIGHTS AND REFLECTORS, BRAKE AND ELECTRICAL
CONNECTIONS TO TRAILER, TRAILER COUPLING DEVICES, CARGO SECUREMENT
DEVICES. - CORRECT ANSWER - What things should you check during a trip?
STEERING WHEEL, STEERING ARMS, STEERING WHEEL SHAFT, TIE ROD,
STEERING GEAR BOX, PITMAN ARM, DRAG LINK, STEERING RING KNUCKLE,
SPINDLE. - CORRECT ANSWER - Name some key steering system parts.
SPRING HANGERS THAT MOVE, CRACKED OR BROKEN SPRING HANGERS,
MISSING OR BROKEN LEAVES, LEAKING SHOCK ABSORBERS, TORQUE ROD ARM -
CORRECT ANSWER - Name some suspension system defects.
FIRE EXTINGUISHER, SPARE FUSES, WARNING DEVICES (TRIANGLES) - CORRECT
ANSWER - What three kinds of emergency equipment must you have?
FRONT 4/32 REAR 2/32 - CORRECT ANSWER - What is the minimum tread depth for
front tires?For other tires?
CONDITION OF FRONT AXLE, STEERING SYSTEM, WINDSHIELD, LIGHTS AND
REFLECTORS - CORRECT ANSWER - Name some things you should check on the
front of your vehicle during the walk-around inspection.
NOT LEAKING - CORRECT ANSWER - What should wheel bearing seals be checked
for?
,3 - CORRECT ANSWER - How many red reflective triangles should you carry?
PUMP BREAK PEDAL 3 TIMES, THEN APPLY FIRM PRESSURE TO PEDAL AND HOLD
FOR 5 SECONDS. THE PEDAL SHOULD NOT MOVE. - CORRECT ANSWER - How
do you test hydraulic brakes for leaks?
SO NO ONE CAN STEAL YOUR VEHICLE. - CORRECT ANSWER - Why put the
starter switch key in your pocket during the pre-trip inspection?
SO YOU CAN SEE BETTER. - CORRECT ANSWER - Why should you back toward the
driver's side?
PARTLY ENGAGE THE CLUTCH BEFORE YOU TAKE YOUR RIGHT FOOT OFF THE
BRAKE. - CORRECT ANSWER - If stopped on a hill, how can you start moving without
rolling back?
SO THEY CAN HELP YOU SEE AND SO THEY CAN CHECK YOUR BLIND SPOTS. -
CORRECT ANSWER - When backing, why is it important to use a helper?
STOP - CORRECT ANSWER - What's the most important hand signal that you and the
helper should agree on?
BEFORE STARTING DOWN A HILL AND BEFORE ENTERING A CURVE. - CORRECT
ANSWER - What are the two special conditions where you should downshift?
YOU CAN SELECT A LOW RANGE TO GET GREATER BRAKING WHEN GOING
DOWN GRADES. - CORRECT ANSWER - When should you downshift automatic
transmissions?
, FALSE - CORRECT ANSWER - Retarders keep you from skidding when the road is
slippery. True or False?
RPM AND MPH - CORRECT ANSWER - What are the two ways to know when to shift?
12-15 SECONDS - CORRECT ANSWER - How far ahead does the manual say you
should look?
VEHICLES COMING ONTO THE HIGHWAY, INTO YOUR LANE OR TURNING AND
BRAKE LIGHTS. - CORRECT ANSWER - What are two main things to look for ahead?
CHECK YOUR MIRRORS. - CORRECT ANSWER - What's your most important way to
see the sides and rear of your vehicle?
SIGNAL YOUR INTENTIONS. - CORRECT ANSWER - What does "communicating"
mean in safe driving?
10 FEET, 100 FEET, 200 FEET TOWARD THE APPROACHING TRAFFIC. - CORRECT
ANSWER - Where should your reflectors be placed when stopped on a divided highway?
PERCEPTION, REACTION, BRAKING. - CORRECT ANSWER - What three things add
up to total stopping distance?
FOUR - CORRECT ANSWER - If you go twice as fast, will your stopping distance
increase by two or four times?
FALSE - CORRECT ANSWER - Empty trucks have the best braking. True or False?
TIRES LOSE CONTACT WITH THE ROAD AND HAVE LITTLE OR ON TRACTION. -
CORRECT ANSWER - What is hydroplaning?
