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Mississippi CDL HazMat Endorsement Test Practice Questions - Mississippi CDL Hazardous Materials Endorsement Test Exam
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Question
1
of 25
QUESTION 1 / 25
Before driving a vehicle that must display hazardous materials placards in Mississippi, what endorsement must be on the CDL?
Choose one answer below.
A
Hazardous Materials endorsement or X endorsement when combined with tank vehicle authority
✓
B
Passenger endorsement because placards warn the public
✓
C
Air Brakes endorsement because placards are mounted outside the vehicle
✓
D
No endorsement if the load stays inside Mississippi
✓
QUESTION 2 / 25
Which Mississippi CDL manual section is the main study section for the Hazardous Materials endorsement knowledge test?
Choose one answer below.
A
Section 2 only
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B
Section 9
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C
Section 10 only
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D
The vehicle inspection checklist only
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QUESTION 3 / 25
What is the main purpose of hazardous materials shipping papers?
Choose one answer below.
A
To communicate the material, hazard, quantity, and emergency information to carriers and responders
✓
B
To replace placards on the outside of the vehicle
✓
C
To prove the driver paid fuel tax
✓
D
To document only the route chosen by dispatch
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QUESTION 4 / 25
Where should hazmat shipping papers be kept while the driver is behind the wheel?
Choose one answer below.
A
Locked in the trailer with the cargo
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B
In clear view within reach or in the driver door pouch as required
✓
C
At the motor carrier office only
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D
Under the passenger seat with personal paperwork
✓
QUESTION 5 / 25
What shape are standard hazardous materials placards?
Choose one answer below.
A
Round
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B
Triangle
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C
Diamond or square-on-point
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D
Octagon
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QUESTION 6 / 25
A placarded vehicle generally needs placards displayed in which locations?
Choose one answer below.
A
Only on the rear
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B
Only on both sides
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C
Front, rear, and both sides
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D
Only near the cab doors
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QUESTION 7 / 25
What does a four-digit UN or NA identification number help emergency responders identify?
Choose one answer below.
A
The driver license number
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B
The hazardous material involved
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C
The carrier insurance policy
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D
The trailer registration year
✓
QUESTION 8 / 25
Which hazard class covers explosives?
Choose one answer below.
A
Class 1
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B
Class 3
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C
Class 7
✓
D
Class 9
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QUESTION 9 / 25
Which hazard class covers gases such as oxygen, propane, or helium?
Choose one answer below.
A
Class 2
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B
Class 4
✓
C
Class 6
✓
D
Class 8
✓
QUESTION 10 / 25
Which hazard class covers flammable liquids such as gasoline or acetone?
Choose one answer below.
A
Class 1
✓
B
Class 3
✓
C
Class 5
✓
D
Class 7
✓
QUESTION 11 / 25
Which hazard class covers corrosive materials such as hydrochloric acid or battery fluid?
Choose one answer below.
A
Class 2
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B
Class 5
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C
Class 8
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D
Class 9
✓
QUESTION 12 / 25
Which hazard class covers radioactive materials?
Choose one answer below.
A
Class 4
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B
Class 6
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C
Class 7
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D
Class 9
✓
QUESTION 13 / 25
What should a driver do if unsure whether a vehicle needs placards?
Choose one answer below.
A
Drive until an inspector decides
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B
Ask the employer and consult the regulations before moving the load
✓
C
Use DANGEROUS placards for every load
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D
Remove all labels from packages
✓
QUESTION 14 / 25
What is the driver checking when comparing package labels and shipping papers?
Choose one answer below.
A
That the hazards shown on packages match the shipping description and required labels
✓
B
That every package is the same color
✓
C
That the shipper used the cheapest packaging
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D
That the route avoids toll roads
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QUESTION 15 / 25
Which item is a required driver responsibility before accepting a hazardous materials shipment?
Choose one answer below.
A
Check that required shipping papers, labels, markings, and placards are present and consistent
✓
B
Rewrite the shipper certification for the shipper
✓
C
Open every inner package to inspect contents
✓
D
Choose the UN number from memory
✓
QUESTION 16 / 25
What is the safest general response to a hazmat leak or spill?
Choose one answer below.
A
Keep away, warn others, communicate the hazard, and call for qualified help
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B
Walk through the spill to identify it by smell
✓
C
Pour water on every leaking material
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D
Move leaking packages into the cab
✓
QUESTION 17 / 25
Why should a driver approach a hazmat incident from uphill and upwind when possible?
Choose one answer below.
A
To avoid vapors, smoke, and runoff moving toward the driver
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B
To make placards easier to remove
✓
C
To keep the vehicle engine warmer
✓
D
To shorten the official report
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QUESTION 18 / 25
What should be given to emergency responders after a hazmat crash if the driver can do so safely?
Choose one answer below.
A
Shipping papers and emergency response information
✓
B
The driver personal phone only
✓
C
The bill for cleanup
✓
D
A list of fuel stops
✓
QUESTION 19 / 25
Which fire extinguisher rating is identified in the Mississippi CDL hazmat driving rules for placarded vehicles?
Choose one answer below.
A
10 B:C or more
✓
B
1 A only
✓
C
Kitchen Class K only
✓
D
No extinguisher is required
✓
QUESTION 20 / 25
When fueling a placarded vehicle, what must the driver do?
Choose one answer below.
A
Turn off the engine and control the fuel flow at the nozzle
✓
B
Leave the engine running to power warning lights
✓
C
Block the nozzle open and inspect tires
✓
D
Smoke only if no liquid is visible
✓
QUESTION 21 / 25
What is the correct smoking rule near Class 1 explosives, Class 3 flammable liquids, and other listed ignition-sensitive materials?
Choose one answer below.
A
Do not smoke or carry a lighted smoking material near the vehicle
✓
B
Smoke only on the upwind side
✓
C
Smoke only during daylight
✓
D
Smoking is allowed if placards are covered
✓
QUESTION 22 / 25
What is the purpose of the Emergency Response Guidebook?
Choose one answer below.
A
To help identify hazards and initial protective actions during hazmat incidents
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B
To calculate CDL license fees
✓
C
To replace required shipping papers
✓
D
To assign state road test routes
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QUESTION 23 / 25
What does the Mississippi H endorsement stand for?
Choose one answer below.
A
Hazardous Materials
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B
Heavy Combination
✓
C
Highway Route
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D
Hydraulic Brakes
✓
QUESTION 24 / 25
What does the X endorsement combine?
Choose one answer below.
A
Tank Vehicle and Hazardous Materials
✓
B
Passenger and School Bus
✓
C
Air Brakes and Doubles
✓
D
General Knowledge and Combination Vehicles
✓
QUESTION 25 / 25
Which federal agency conducts the hazardous materials endorsement security threat assessment?
Choose one answer below.
A
TSA
✓
B
IRS
✓
C
EPA only
✓
D
National Weather Service
✓
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