Texas A&M Engineering Extension Service
Hazardous Materials Technician (TEEX
Hazmat Technician) Questions and Answers
Exam
Bags - ANSWER>>- Typically contains up to 100 lbs
- Tote bags may contain up to 500 lbs
- Contains: Explosives, toxics, corrosives, pesticides, insecticides, oxidizers, &
flammable Materials
- Hazard Classes: 1, 4, 5, 6, 8, & 9
- Examples: Cement, Fertilizers, & pesticides
Carboys - ANSWER>>- Generally doesn't exceed 20 gal
- Glass or plastic bottles encased in outer protective packaging
- Contains: toxics, acidic or caustic corrosives, and water
- Hazard Classes: 1, 3, 5, 6, 8, & 9
- Examples: Sulfuric Acid, Hydrochloric acid, Ammonium Hydroxide
Cylinders - ANSWER>>- Generally will not exceed 1,000 pounds of water capacity
- Internal Press: A few psi to several hundred
- Contains: Toxics, Corrosives, Pesticides, Insecticides, Oxidizers, & Flammable
Materials
- Hazard Classes: 2, 3, & 6
- Examples: Aerosol Containers, Cleaners, Lubricants, Paints, & toiletries
Non-Insulated Cylinders:
- Contains: Acetylene, Gaseous Nitrogen, LPG or Oxygen
Cryogenic Cylinders:
,- Hazard Class: 2
- Examples: Argon, Helium, Nitrogen, & Oxygen
Drums and Barrels - ANSWER>>- Generally wont exceed 55 gal
- Open Head Drum: removable head
- Closed Head Drum: two openings, one 2in & 1 0.75in that are closed with plugs
- Contains: Toxics, Corrosives, Pesticides, Insecticides, Oxidizers, & Flammable
Materials
- Hazard Classes: 1, 3, 4, 5, 6, 8, & 9
- Examples: Lubricating Grease, Caustic Powders, Hydrogen Peroxide, Poisons &
Solvents
Ton Containers - ANSWER>>- Max Capacity: Transport 1 ton
- Internal Pressure: 100-500 psi
- Possible Contents: Liquified gases & some nonflammable gases
- Moderate BLEVE Potential
- Hazard Class: 2.2 (anhydrous ammonia) & 2.3 (Poisonous Gas)
- Examples: Chlorine, Sulfur Dioxide, Phosgene, & Anhydrous Ammonia
- Other Information:
-- Convex design usually contains refrigerant gases
-- Concave usually contains Chlorine, Phosgene & other gasses
Flexible Intermediate Bulk Containers - ANSWER>>"Super Sacks"
- Capacity: 500 - 5,000 lbs
- Possible Contents: Solid materials including explosives, flammable solids,
oxidizers, and organic peroxides, poisons, & corrosives
- Hazard Classifications: 1.5, 4, 5, 6, 8, & 9
- Examples: Fertilizers, Pesticides, Caustic Powders, & Water Treatment Chemicals
Rigid Intermediate Bulk Containers - ANSWER>>- Capacity: 300-500 gal
- Possible Contents: Liquid materials including corrosives
- Hazard Classes: 8 & 9
,- Examples: Acrylic Acid, Butyric Acid, Hydroic Acid, Sodium Aluminate, Asbestos &
Sulfur
Rigid Intermediate Bulk Containers (Portable Tanks/Totes) - ANSWER>>- Capacity:
300-500 gal
- Possible Contents: Liquid Materials, including flammable & combustible liquids,
oxidizers, & corrosives; non-hazardous liquid materials
- Hazard Classes: 3, 5.1, & 8
- Examples: Liquid Fertilizer, Pesticides, & Food Grade Commodities
Portable Bins - ANSWER>>- Capacity: May be more than 3 tons
- Possible Contents: Liquid materials, including corrosives & class 9 materials
- Hazard Classes: 4.3, 8, & 9
- Examples: Liquid Fertilizers, Pesticides, & Food Grade Commodities
MC-306/DOT-406
(Non-Pressure Liquids Tanks) - ANSWER>>- Generally won't exceed 9,000 gal
(3+6= 9)
- Hazard Classes: 3, 4, 6, & 9
- Mild to Moderate BLEVE potential
- Examples: Gasoline, Fuel oil, alcohol, & other flammable and combustible liquids
- Oval ends, underbelly outlets, and rollover spill rails on the ceiling
- Emergency shutoff on the driver side front of the trailer
MC-307 (Low Pressure Chemical) - ANSWER>>- Generally won't exceed 6,000-
7,000 gallons
- Pressure ranges from 18-40 psi
- Hazard Classes: 3, 6, 8, & 9
- Possible Contents: (Flammable & Corrosives)
- Moderate BLEVE potential
- Round Cylindrical or Horseshoe shape
MC-312 (Corrosive Liquid Tank) - ANSWER>>- Generally won't exceed 6,000 gal
, - Pressure Ranges from 35-50 psi
- Hazard Class: 3, 5, 6, 8, & 9
- Possible Contents: Liquids (Toxic, corrosives, pesticides, insecticides, oxidizers, &
flammable materials)
- Moderate to High BLEVE potential
- Examples: Sulfuric Acid, Chlorosulphonic Acid, & Hydrofluoric Acid
- Easily identified by small, round, horseshoe ends
MC-331 (High Pressure) - ANSWER>>- Generally won't exceed 11,500 gal except
border states (17,500 gal)
- Pressure Range: 100-500 psi
- Hazard Class: 2
- Possible Contents: Gases (Flammable, Toxic, Corrosives, & Oxidizers)
- High BLEVE potential
- Examples: LPG & Anhydrous Ammonia
MC-338 Cryogenic Liquid Tank - ANSWER>>- Generally wont exceed 8,000-10,000
gal
- Pressure Range: 25-500 psi
- Hazard Class: 2
- Possible Contents: Cryogenic Liquids
- High BLEVE Potential
- Examples: Liquid Oxygen, Liquid Nitrogen, & Liquid Carbon Dioxide
- Notes:
-- Tank within a tank
-- Dished ends
-- Valves found in the compartment on back of tank
Dry Bulk Cargo Tanks - ANSWER>>"Hopper Trailer"
- Maximum Capacity: 1,500 cubic feet
- Pressure Range: Rarely exceeds 22 psi
- Hazard Class: 5, 6, 8, & 9
Hazardous Materials Technician (TEEX
Hazmat Technician) Questions and Answers
Exam
Bags - ANSWER>>- Typically contains up to 100 lbs
- Tote bags may contain up to 500 lbs
- Contains: Explosives, toxics, corrosives, pesticides, insecticides, oxidizers, &
flammable Materials
- Hazard Classes: 1, 4, 5, 6, 8, & 9
- Examples: Cement, Fertilizers, & pesticides
Carboys - ANSWER>>- Generally doesn't exceed 20 gal
- Glass or plastic bottles encased in outer protective packaging
- Contains: toxics, acidic or caustic corrosives, and water
- Hazard Classes: 1, 3, 5, 6, 8, & 9
- Examples: Sulfuric Acid, Hydrochloric acid, Ammonium Hydroxide
Cylinders - ANSWER>>- Generally will not exceed 1,000 pounds of water capacity
- Internal Press: A few psi to several hundred
- Contains: Toxics, Corrosives, Pesticides, Insecticides, Oxidizers, & Flammable
Materials
- Hazard Classes: 2, 3, & 6
- Examples: Aerosol Containers, Cleaners, Lubricants, Paints, & toiletries
Non-Insulated Cylinders:
- Contains: Acetylene, Gaseous Nitrogen, LPG or Oxygen
Cryogenic Cylinders:
,- Hazard Class: 2
- Examples: Argon, Helium, Nitrogen, & Oxygen
Drums and Barrels - ANSWER>>- Generally wont exceed 55 gal
- Open Head Drum: removable head
- Closed Head Drum: two openings, one 2in & 1 0.75in that are closed with plugs
- Contains: Toxics, Corrosives, Pesticides, Insecticides, Oxidizers, & Flammable
Materials
- Hazard Classes: 1, 3, 4, 5, 6, 8, & 9
- Examples: Lubricating Grease, Caustic Powders, Hydrogen Peroxide, Poisons &
Solvents
Ton Containers - ANSWER>>- Max Capacity: Transport 1 ton
- Internal Pressure: 100-500 psi
- Possible Contents: Liquified gases & some nonflammable gases
- Moderate BLEVE Potential
- Hazard Class: 2.2 (anhydrous ammonia) & 2.3 (Poisonous Gas)
- Examples: Chlorine, Sulfur Dioxide, Phosgene, & Anhydrous Ammonia
- Other Information:
-- Convex design usually contains refrigerant gases
-- Concave usually contains Chlorine, Phosgene & other gasses
Flexible Intermediate Bulk Containers - ANSWER>>"Super Sacks"
- Capacity: 500 - 5,000 lbs
- Possible Contents: Solid materials including explosives, flammable solids,
oxidizers, and organic peroxides, poisons, & corrosives
- Hazard Classifications: 1.5, 4, 5, 6, 8, & 9
- Examples: Fertilizers, Pesticides, Caustic Powders, & Water Treatment Chemicals
Rigid Intermediate Bulk Containers - ANSWER>>- Capacity: 300-500 gal
- Possible Contents: Liquid materials including corrosives
- Hazard Classes: 8 & 9
,- Examples: Acrylic Acid, Butyric Acid, Hydroic Acid, Sodium Aluminate, Asbestos &
Sulfur
Rigid Intermediate Bulk Containers (Portable Tanks/Totes) - ANSWER>>- Capacity:
300-500 gal
- Possible Contents: Liquid Materials, including flammable & combustible liquids,
oxidizers, & corrosives; non-hazardous liquid materials
- Hazard Classes: 3, 5.1, & 8
- Examples: Liquid Fertilizer, Pesticides, & Food Grade Commodities
Portable Bins - ANSWER>>- Capacity: May be more than 3 tons
- Possible Contents: Liquid materials, including corrosives & class 9 materials
- Hazard Classes: 4.3, 8, & 9
- Examples: Liquid Fertilizers, Pesticides, & Food Grade Commodities
MC-306/DOT-406
(Non-Pressure Liquids Tanks) - ANSWER>>- Generally won't exceed 9,000 gal
(3+6= 9)
- Hazard Classes: 3, 4, 6, & 9
- Mild to Moderate BLEVE potential
- Examples: Gasoline, Fuel oil, alcohol, & other flammable and combustible liquids
- Oval ends, underbelly outlets, and rollover spill rails on the ceiling
- Emergency shutoff on the driver side front of the trailer
MC-307 (Low Pressure Chemical) - ANSWER>>- Generally won't exceed 6,000-
7,000 gallons
- Pressure ranges from 18-40 psi
- Hazard Classes: 3, 6, 8, & 9
- Possible Contents: (Flammable & Corrosives)
- Moderate BLEVE potential
- Round Cylindrical or Horseshoe shape
MC-312 (Corrosive Liquid Tank) - ANSWER>>- Generally won't exceed 6,000 gal
, - Pressure Ranges from 35-50 psi
- Hazard Class: 3, 5, 6, 8, & 9
- Possible Contents: Liquids (Toxic, corrosives, pesticides, insecticides, oxidizers, &
flammable materials)
- Moderate to High BLEVE potential
- Examples: Sulfuric Acid, Chlorosulphonic Acid, & Hydrofluoric Acid
- Easily identified by small, round, horseshoe ends
MC-331 (High Pressure) - ANSWER>>- Generally won't exceed 11,500 gal except
border states (17,500 gal)
- Pressure Range: 100-500 psi
- Hazard Class: 2
- Possible Contents: Gases (Flammable, Toxic, Corrosives, & Oxidizers)
- High BLEVE potential
- Examples: LPG & Anhydrous Ammonia
MC-338 Cryogenic Liquid Tank - ANSWER>>- Generally wont exceed 8,000-10,000
gal
- Pressure Range: 25-500 psi
- Hazard Class: 2
- Possible Contents: Cryogenic Liquids
- High BLEVE Potential
- Examples: Liquid Oxygen, Liquid Nitrogen, & Liquid Carbon Dioxide
- Notes:
-- Tank within a tank
-- Dished ends
-- Valves found in the compartment on back of tank
Dry Bulk Cargo Tanks - ANSWER>>"Hopper Trailer"
- Maximum Capacity: 1,500 cubic feet
- Pressure Range: Rarely exceeds 22 psi
- Hazard Class: 5, 6, 8, & 9
