Mississippi Hazardous Materials CDL Practice Test

What is a placard?

• A. Diamond-shaped sign placed on the outside of a vehicle that identifies hazard class
• B. A registration document
• C. A bill of lading
• D. A driver license

Who is responsible for proper labeling, packaging, and shipping papers?

• A. The shipper
• B. The driver
• C. The carrier only
• D. The receiver

Drivers transporting hazardous materials must have:

• A. A CDL with H endorsement and TSA background check
• B. Only a regular CDL
• C. Only a Class A license
• D. Any commercial license

How long are hazmat shipping papers typically kept?

• A. Within reach of the driver while driving
• B. In the back of the trailer
• C. In the office
• D. Locked in the cab

What must be on the shipping paper for hazardous materials?

• A. Proper shipping name, hazard class, ID number, packing group, total quantity, emergency contact
• B. Just the destination
• C. Only the weight
• D. Only the shipper name

What does the letter "X" before the proper shipping name mean?

• A. The material is hazardous
• B. The material is non-hazardous
• C. The material requires special permits
• D. It is for export only

When transporting hazmat, what must you do at a railroad crossing?

• A. Stop 15-50 feet from the nearest rail
• B. Slow down only
• C. Sound horn and proceed
• D. Continue at speed

You must NEVER smoke within how many feet of placarded vehicles containing flammable materials?

• A. 25 feet
• B. 5 feet
• C. 10 feet
• D. 50 feet

Class 1 materials are:

• A. Explosives
• B. Gases
• C. Flammable liquids
• D. Radioactive materials

What does PIH stand for?

• A. Poison Inhalation Hazard
• B. Pressure In Handling
• C. Public Information Hazard
• D. Packaged Industrial Hazmat

Which class of hazmat must always have placards regardless of amount?

• A. Class 1.1, 1.2, 1.3 explosives, certain Division 2.3 PIH, etc.
• B. Any class 3
• C. Any class 9
• D. No class needs placards always

Drivers should never:

• A. Park hazmat vehicles within 5 feet of the traveled portion of a highway
• B. Drive in the right lane
• C. Use cruise control
• D. Use turn signals

When should the engine be off when fueling a placarded vehicle?

• A. Always — engine off during fueling
• B. Only diesel
• C. Only when raining
• D. Only when over half tank

You may not park within how many feet of an open fire?

• A. 300 feet
• B. 50 feet
• C. 100 feet
• D. 500 feet

Which placard requires drivers to stop at all railroad crossings?

• A. Any placarded vehicle except certain quantities
• B. Only explosives
• C. Only flammable
• D. Only oxidizers

Cargo tanks of any size carrying hazardous materials of which class do not have to stop at railroad crossings?

• A. Empty tanks that have not been cleaned/purged still must stop
• B. Only the empty exception
• C. Class 9 only
• D. Class 8 only

What is the "Emergency Response Guidebook" (ERG)?

• A. Reference for first responders for hazmat incidents
• B. Driver license guide
• C. Shipping paper template
• D. Insurance form

When you discover a leak in a hazmat shipment, you should:

• A. Park safely, secure the area, notify emergency response, do not move the vehicle
• B. Try to seal it
• C. Continue to nearest dropoff
• D. Wash off with water

Which is true about transporting Division 1.1 explosives?

• A. Many materials cannot be loaded with them
• B. They can be loaded with anything
• C. No placard required
• D. Only state permit needed

You can never transport which of the following with food in the same vehicle?

• A. Poison (Class 6.1)
• B. Class 9
• C. Class 3
• D. Class 8 always allowed

How often must hazmat tanks be inspected for leaks?

• A. Per regulation: at minimum each pre-trip and en-route inspections
• B. Yearly
• C. Monthly
• D. Weekly

When transporting Class 7 (Radioactive) materials, drivers must:

• A. Carry a route plan and follow specific routes
• B. Drive only at night
• C. Carry no other cargo
• D. Only carry one piece

What is "compatibility" of hazardous materials?

• A. Whether materials can be safely loaded together
• B. Whether they can be combined chemically
• C. Whether they can be stored long-term
• D. Whether they can be exported

Which fire extinguishers must hazmat vehicles carry?

• A. 10 BC or larger UL rating
• B. Water only
• C. 5 BC
• D. No requirement

What does the term "outage" mean in tank loading?

• A. Empty space left in a tank for liquid expansion
• B. Power outage
• C. Tank leak
• D. Stop in route

What must drivers do before transporting hazmat?

• A. Inspect placards, papers, vehicle, and route plan
• B. Just check engine oil
• C. Just sign papers
• D. Refuel

Drivers transporting Division 1.1 or 1.2 explosives must have:

• A. Written route plan and follow it
• B. Only verbal directions
• C. No special plan
• D. GPS only

You cannot transport hazardous materials in a passenger compartment because:

• A. Risk to driver and contamination
• B. Saves space
• C. It is allowed actually
• D. Only at night

What are "leaking" packages?

• A. Drums, bags, or containers showing release of contents
• B. Empty packages
• C. Marked with X
• D. Wet packages

Hazmat training must be repeated:

• A. Every three years
• B. Every year
• C. Every five years
• D. Once only

Which placard color indicates flammable liquids?

• A. Red
• B. Orange
• C. Yellow
• D. Green

Which placard color indicates corrosive materials?

• A. Black and white
• B. Red
• C. Yellow
• D. Green

Which placard color indicates non-flammable gas?

• A. Green
• B. Red
• C. Yellow
• D. Orange

What is "RQ" on shipping papers?

• A. Reportable Quantity for environmental release
• B. Required Quantity
• C. Restricted Quantity
• D. Reduced Quantity

When emergency response is needed for hazmat, call:

• A. CHEMTREC at 1-800-424-9300 or carrier's emergency contact
• B. 911 only
• C. DOT
• D. EPA

What is the "manifest" for hazmat?

• A. Shipping paper that follows the load
• B. Cargo claim form
• C. Insurance document
• D. Vehicle title

How should you mark each package?

• A. Proper shipping name and ID number must be visible
• B. Only weight
• C. Only destination
• D. No markings needed

Hazmat drivers must not allow:

• A. Unauthorized passengers
• B. Other drivers
• C. Mechanics
• D. Inspectors

When driving placarded loads, what should you avoid most?

• A. Tunnels and densely populated areas where possible
• B. Highways
• C. Bridges
• D. Rest areas

Which item must be in the cab on hazmat trips?

• A. Shipping papers, ERG, emergency contact info
• B. Bill of lading only
• C. Driver log
• D. Insurance card only

When parking a placarded vehicle (other than 1.1/1.2/1.3 explosives), the vehicle should be:

• A. Attended or in a safe haven
• B. Parked anywhere
• C. Left running
• D. Idle for 8 hours

When transporting Class 1 (1.1, 1.2) explosives, the vehicle must be attended:

• A. At all times
• B. Only in cities
• C. Only at night
• D. Never

Cargo heaters in trailers carrying hazmat are:

• A. Generally restricted; certain types prohibited with explosives or flammables
• B. Always allowed
• C. Required
• D. Only allowed in winter

What is the rule on smoking in hazmat vehicles?

• A. No smoking in or near vehicles carrying flammable, explosive, or oxidizer materials
• B. Allowed outside cab
• C. Allowed at fueling
• D. Allowed if windows are open

What is the difference between Class 9 and Class 7?

• A. 9 = miscellaneous hazardous; 7 = radioactive
• B. 9 = explosives, 7 = corrosives
• C. 9 = gas, 7 = liquid
• D. They are the same

What is segregation in hazmat?

• A. Required separation of incompatible materials in transport
• B. Driver isolation
• C. Tank isolation
• D. Loading times only

When must you use a security plan?

• A. Carriers transporting certain quantities of hazardous materials
• B. Always
• C. Only for explosives
• D. Only for radioactive

Which class is "Other Regulated Material" (ORM-D)?

• A. Replaced by limited quantity provisions; was for consumer commodities
• B. Class 9
• C. Class 8
• D. Class 1

Hazmat shipping name should always:

• A. Be exactly as listed in the Hazardous Materials Table
• B. Be descriptive in plain English
• C. Be optional
• D. Use trade names

What does subsidiary hazard mean?

• A. Secondary hazard class for material with multiple hazards
• B. Backup placard
• C. Less important data
• D. Future hazard

Drivers may carry tools to repair hazmat vehicles only if:

• A. Tools are not capable of igniting flammables when used
• B. They are battery powered
• C. They are wrapped
• D. Anywhere

What is the proper order to load placarded materials?

• A. Refer to segregation table; certain combinations prohibited
• B. Heaviest first only
• C. Alphabetical
• D. Largest first

Hazmat may not be transported:

• A. On certain routes restricted by state or local jurisdictions
• B. On any highway
• C. Only at night
• D. Only in winter

Tank vehicles with hazmat must:

• A. Be marked, placarded, and inspected before each trip
• B. Be cleaned monthly
• C. Be inspected annually only
• D. Be inspected weekly

Hazmat employees must understand:

• A. General awareness, function-specific, safety, and security awareness training
• B. Only loading
• C. Only paperwork
• D. Only driving

When a placarded vehicle is involved in a crash, the driver should:

• A. Notify authorities, isolate area, refer to ERG, contact CHEMTREC
• B. Try to clean spill
• C. Continue to destination
• D. Move vehicle home

What is "consist" relative to a train (analogy)?

• A. Hazmat shipping papers list materials similar to a train consist
• B. A type of placard
• C. A spill kit
• D. A vehicle

When can placards be removed from a vehicle?

• A. When the vehicle is empty and properly cleaned/purged
• B. Anytime after delivery
• C. Only at the shipper
• D. Only at the receiver

Why must drivers know the hazardous materials regulations?

• A. Federal law requires it and lives depend on safe transport
• B. For paperwork only
• C. For insurance
• D. For company audits only

Which document covers federal hazmat regulations?

• A. 49 CFR Parts 100-185
• B. 49 CFR Part 392 only
• C. 49 CFR Part 396
• D. 40 CFR

Where should the emergency contact phone number for hazmat appear?

• A. On the shipping paper, monitored 24 hours
• B. Only on the placard
• C. On the truck
• D. Verbal only