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Missouri Class C CDL Exam Practice Questions Complete
(Verified Updated!!!2026–2027)
Exam Blueprint Overview
A Missouri Class C CDL is required for vehicles that do not meet the
criteria for Class A or B, but are designed to transport 16 or more
persons (including the driver) or are placarded for hazardous
materials.
Test Component Details
General Knowledge Test 50 questions; need 40 correct (80%) to pass
Passenger Test (P) 20 questions; need 16 correct (80%) to pass
Hazardous Materials Test (H) 30 questions; need 24 correct (80%) to pass
Air Brakes Test 25 questions; need 20 correct (80%) to pass
School Bus Test (S) 20 questions; need 16 correct (80%) to pass
Required Tests for Class C: Basic Knowledge Test, and either the
Passenger Test, the Hazardous Materials Test, or both.
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Class C Endorsements: Hazardous Materials (H), Tank Vehicles (N), Tank
Vehicles Transporting Hazardous Materials (X), Passenger Transport (P),
School Bus (S). The Doubles/Triples (T) endorsement is only available for
Class A driver's licenses.
ELDT Requirement: Entry-Level Driver Training is required for anyone
obtaining a Class C CDL with Passenger, School Bus, or hazardous
materials endorsement for the first time.
SECTION 1: GENERAL KNOWLEDGE (Questions)
Vehicle Inspection & Basic Control
1. What is the most important reason to inspect your truck or
bus before driving?
A) To check the battery fluid level
B) To check the amount of fuel in the vehicle
C) Safety for yourself and others
D) To check the tire pressure
Correct Answer: C
Rationale: The most important reason for a pre-trip inspection
is safety. A pre-trip inspection helps you find problems that
could cause a crash, breakdown, or fire.
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2. A pre-trip inspection should take at minimum:
A) 5 minutes
B) 15 minutes
C) 30 minutes
D) 60 minutes
Correct Answer: B
Rationale: A thorough pre-trip inspection should take at least
15 minutes to complete properly.
3. For proper steering, steering wheel play should be no more
than:
A) 30 degrees
B) 25 degrees
C) 10 degrees
D) 45 degrees
Correct Answer: C
Rationale: Steering wheel play should be no more than 10
degrees (about 2 inches at the rim of a 20-inch wheel).
4. If you find anything unsafe during the pre-trip inspection, you
are required to:
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A) Get it fixed before driving
B) Write it in your inspection report
C) Drive cautiously until it is fixed
D) Ignore it if it's minor
Correct Answer: A
Rationale: If you find anything unsafe during the pre-trip
inspection, you must get it fixed before driving.
5. You should downshift:
A) Before starting down a hill or entering a curve
B) Before exiting a curve
C) Before starting up a hill
D) After reaching the top of a hill
Correct Answer: A
Rationale: Downshift before starting down a hill or entering a
curve so you can use engine braking and maintain control.
6. The definition of Gross Vehicle Weight is:
A) Axle weight + cargo weight
B) Total weight of a single vehicle + cargo
C) Total weight of cargo
D) Weight of the vehicle only
Missouri Class C CDL Exam Practice Questions Complete
(Verified Updated!!!2026–2027)
Exam Blueprint Overview
A Missouri Class C CDL is required for vehicles that do not meet the
criteria for Class A or B, but are designed to transport 16 or more
persons (including the driver) or are placarded for hazardous
materials.
Test Component Details
General Knowledge Test 50 questions; need 40 correct (80%) to pass
Passenger Test (P) 20 questions; need 16 correct (80%) to pass
Hazardous Materials Test (H) 30 questions; need 24 correct (80%) to pass
Air Brakes Test 25 questions; need 20 correct (80%) to pass
School Bus Test (S) 20 questions; need 16 correct (80%) to pass
Required Tests for Class C: Basic Knowledge Test, and either the
Passenger Test, the Hazardous Materials Test, or both.
, Page |2
Class C Endorsements: Hazardous Materials (H), Tank Vehicles (N), Tank
Vehicles Transporting Hazardous Materials (X), Passenger Transport (P),
School Bus (S). The Doubles/Triples (T) endorsement is only available for
Class A driver's licenses.
ELDT Requirement: Entry-Level Driver Training is required for anyone
obtaining a Class C CDL with Passenger, School Bus, or hazardous
materials endorsement for the first time.
SECTION 1: GENERAL KNOWLEDGE (Questions)
Vehicle Inspection & Basic Control
1. What is the most important reason to inspect your truck or
bus before driving?
A) To check the battery fluid level
B) To check the amount of fuel in the vehicle
C) Safety for yourself and others
D) To check the tire pressure
Correct Answer: C
Rationale: The most important reason for a pre-trip inspection
is safety. A pre-trip inspection helps you find problems that
could cause a crash, breakdown, or fire.
, Page |3
2. A pre-trip inspection should take at minimum:
A) 5 minutes
B) 15 minutes
C) 30 minutes
D) 60 minutes
Correct Answer: B
Rationale: A thorough pre-trip inspection should take at least
15 minutes to complete properly.
3. For proper steering, steering wheel play should be no more
than:
A) 30 degrees
B) 25 degrees
C) 10 degrees
D) 45 degrees
Correct Answer: C
Rationale: Steering wheel play should be no more than 10
degrees (about 2 inches at the rim of a 20-inch wheel).
4. If you find anything unsafe during the pre-trip inspection, you
are required to:
, Page |4
A) Get it fixed before driving
B) Write it in your inspection report
C) Drive cautiously until it is fixed
D) Ignore it if it's minor
Correct Answer: A
Rationale: If you find anything unsafe during the pre-trip
inspection, you must get it fixed before driving.
5. You should downshift:
A) Before starting down a hill or entering a curve
B) Before exiting a curve
C) Before starting up a hill
D) After reaching the top of a hill
Correct Answer: A
Rationale: Downshift before starting down a hill or entering a
curve so you can use engine braking and maintain control.
6. The definition of Gross Vehicle Weight is:
A) Axle weight + cargo weight
B) Total weight of a single vehicle + cargo
C) Total weight of cargo
D) Weight of the vehicle only
