California DMV Class A/B CDL
& Endorsements Complete
Guide for Test Preparation
2026 Exam All Answers and
Illustrations Given
What is the minimum age to apply for a Commercial Driver License for
intrastate commerce? - 18 years old
What is the minimum age to apply for a Commercial Driver License for
interstate commerce? - 21 years old
What must applicants provide to apply for a Commercial Learner's
Permit? - Required documentation and fees
,What is the fee for an original Class A or B Commercial Driver License? -
$85
What is the fee for an original Class C Commercial Driver License? - $50
What languages are the commercial knowledge tests available in? -
English, Arabic, Chinese, Punjabi, Russian, and Spanish
What is the passing score for the general knowledge test? - 40 out of 50
questions
How many attempts are allowed to pass the knowledge tests on a single
application? - Three attempts
What must be done if a load extends four or more feet beyond the rear
of a truck? - A red or orange flag must be placed on the end of the load.
What is the required tread depth for front tires of a commercial motor
vehicle? - 4/32 of an inch
What is the required tread depth for tires that are not on the front of a
commercial motor vehicle? - 2/32 of an inch
What should be done if one-fourth of the leaves in a leaf spring are
missing? - The vehicle will be put out-of-service until it is fixed.
What can a broken exhaust system allow into the cabin? - Poisonous
fumes
,What should a pre-trip inspection include? - A check of the engine oil
level and other fluids.
What indicates that a vehicle's ABS is not working when starting the
engine? - The yellow light on the left rear of the trailer stays on.
How often should cargo being transported be checked? - Before the trip,
within the first 50 miles, and every three hours or 150 miles thereafter.
What is essential for the safe operation of a CMV regarding sleep? -
Most people need seven to eight hours of sleep per night.
What should a driver look for under the vehicle during a pre-trip
inspection? - Fresh fluids on the ground.
What should be done if a driver fails to comprehend instructions in
English during skills tests? - They will receive a verbal warning up to two
times.
What is the fee for a passenger transport endorsement (PV)? - $85
What is the fee for a driving or skills retest? - $39
What is the fee for a replacement license if lost or stolen? - $37
What must applicants do before taking their skills tests? - Hold a
Commercial Learner's Permit for a minimum of 14 days.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, What is required for a hazardous materials endorsement? -
Fingerprinting and passing a background check.
What should be done during a pre-trip inspection regarding the vehicle's
condition? - Check for any damage or leaning.
What is the purpose of consistency in a pre-trip inspection? - To help a
driver learn all the proper steps and decrease the possibility of forgetting
something.
What should you do if the yellow light on the left rear of a trailer stays on
after starting the engine? - The system is not working properly.
How quickly should oil pressure come up to a normal level when starting
an engine? - Within seconds.
How can you check for a leak in hydraulic brakes? - Pump the brake
pedal three times, then hold down the pedal for five seconds. If the pedal
moves, there may be a problem.
What should you do when stopping a manual transmission vehicle? -
Push the clutch in when the engine is close to idle.
When backing with a trailer, which direction should you turn the steering
wheel initially? - In the direction opposite of the turn.
How do you follow a turning trailer when backing up? - Change the
direction of the steering wheel.
& Endorsements Complete
Guide for Test Preparation
2026 Exam All Answers and
Illustrations Given
What is the minimum age to apply for a Commercial Driver License for
intrastate commerce? - 18 years old
What is the minimum age to apply for a Commercial Driver License for
interstate commerce? - 21 years old
What must applicants provide to apply for a Commercial Learner's
Permit? - Required documentation and fees
,What is the fee for an original Class A or B Commercial Driver License? -
$85
What is the fee for an original Class C Commercial Driver License? - $50
What languages are the commercial knowledge tests available in? -
English, Arabic, Chinese, Punjabi, Russian, and Spanish
What is the passing score for the general knowledge test? - 40 out of 50
questions
How many attempts are allowed to pass the knowledge tests on a single
application? - Three attempts
What must be done if a load extends four or more feet beyond the rear
of a truck? - A red or orange flag must be placed on the end of the load.
What is the required tread depth for front tires of a commercial motor
vehicle? - 4/32 of an inch
What is the required tread depth for tires that are not on the front of a
commercial motor vehicle? - 2/32 of an inch
What should be done if one-fourth of the leaves in a leaf spring are
missing? - The vehicle will be put out-of-service until it is fixed.
What can a broken exhaust system allow into the cabin? - Poisonous
fumes
,What should a pre-trip inspection include? - A check of the engine oil
level and other fluids.
What indicates that a vehicle's ABS is not working when starting the
engine? - The yellow light on the left rear of the trailer stays on.
How often should cargo being transported be checked? - Before the trip,
within the first 50 miles, and every three hours or 150 miles thereafter.
What is essential for the safe operation of a CMV regarding sleep? -
Most people need seven to eight hours of sleep per night.
What should a driver look for under the vehicle during a pre-trip
inspection? - Fresh fluids on the ground.
What should be done if a driver fails to comprehend instructions in
English during skills tests? - They will receive a verbal warning up to two
times.
What is the fee for a passenger transport endorsement (PV)? - $85
What is the fee for a driving or skills retest? - $39
What is the fee for a replacement license if lost or stolen? - $37
What must applicants do before taking their skills tests? - Hold a
Commercial Learner's Permit for a minimum of 14 days.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, What is required for a hazardous materials endorsement? -
Fingerprinting and passing a background check.
What should be done during a pre-trip inspection regarding the vehicle's
condition? - Check for any damage or leaning.
What is the purpose of consistency in a pre-trip inspection? - To help a
driver learn all the proper steps and decrease the possibility of forgetting
something.
What should you do if the yellow light on the left rear of a trailer stays on
after starting the engine? - The system is not working properly.
How quickly should oil pressure come up to a normal level when starting
an engine? - Within seconds.
How can you check for a leak in hydraulic brakes? - Pump the brake
pedal three times, then hold down the pedal for five seconds. If the pedal
moves, there may be a problem.
What should you do when stopping a manual transmission vehicle? -
Push the clutch in when the engine is close to idle.
When backing with a trailer, which direction should you turn the steering
wheel initially? - In the direction opposite of the turn.
How do you follow a turning trailer when backing up? - Change the
direction of the steering wheel.
