OSFM HAZMAT State Exam Study
Guide and All Actual Answers 2025.
Acute Exposure - Answer Short Contact with chemical, it may last seconds or few hours (Single
occurrence)
Chronic Exposure - Answer Long term exposure
Name of Contamination Zones - Answer Cold Zone - No contamination (Awareness)
Warm Zone - Decon Zone (Operations)
Hot Zone - Contaminated Area (Technician)
Level A Suit - Answer Hot Zone, Fully encapsulated with w/ SCBA. High Hazards with
respiratory, skin, and eyes
Level B Suit - Answer Hazmat identify but not require a high level of skin protection. Protects
against liquid splash protection but no protection against vapors, same respiratory protection,
but not same skin protection
Level C Suit - Answer Same as B but lower-level respiratory protection. Suit offers liquid splash
protection but not to chemical vapors or gasses. Most common use in workers today. Wear in a
site where chemical(s) will not affect skin and when air contaminants and the site hazards have
been characterized. C is not allowed by OSHA for Chem Emergency Response.
Level D Suits - Answer No respiratory protection. Used when an atmosphere contains no
known hazards. Bunker gear is Level D
Types of tankers and what they carry (what carries chlorine, name of tanker with rings, which
one has vents out the top, what type carries propane) - Answer MC 331: Carries Chlorine and
Propane
MC312/DOT412 has the heavy reinforcement Rings
MC306/DOT406 is a low pressure that has vents
What level of O2 is dangers - Answer 19.5%
, Direct contamination results from direct contact with a contaminant or through cross
contamination
What tanker carries 6,300 gallons and works between 14 and 25 psi (IM-something) - Answer
IM-102 [IMO Type 2] carries 6300 and works between 14 to 25 psi
The physical changes to the material caused by the chemical, which can include swelling,
stiffening, wrinkling, changes in color, and other physical deterioration - Answer Degradation
What level do you wear in the decon zone in the warm zone - Answer One below than the Hot
Zone (level B)
What's it called when you have to go a fast decon - Answer Emergency Decon
Name for cancer causing stuff - Answer Carcinogen
If there is no operations chief, who do you respond to - Answer Incident Commander
If you don't have the right materials to stop contamination what do you do? - Answer Retreat
to safe distance
If a guy is diking, damming, etc. he taking what type of measures - Answer Defensive
3 types of dams. Complete Dam, Underflow dam and ____ dam - Answer Overflow
What senses is safe that can you use to spot a hazard - Answer Sight and sound
What book do you use for BLEVE - Answer ERG
4-5 ERG question - Answer White: Intro, Instruction, Guidance, Placards, and more
Yellow: Materials order by 4-digit UN/NA number
Blue: Materials ordered by dangerous good name
Orange: Safety procedure and direction. Initial response phase
Guide and All Actual Answers 2025.
Acute Exposure - Answer Short Contact with chemical, it may last seconds or few hours (Single
occurrence)
Chronic Exposure - Answer Long term exposure
Name of Contamination Zones - Answer Cold Zone - No contamination (Awareness)
Warm Zone - Decon Zone (Operations)
Hot Zone - Contaminated Area (Technician)
Level A Suit - Answer Hot Zone, Fully encapsulated with w/ SCBA. High Hazards with
respiratory, skin, and eyes
Level B Suit - Answer Hazmat identify but not require a high level of skin protection. Protects
against liquid splash protection but no protection against vapors, same respiratory protection,
but not same skin protection
Level C Suit - Answer Same as B but lower-level respiratory protection. Suit offers liquid splash
protection but not to chemical vapors or gasses. Most common use in workers today. Wear in a
site where chemical(s) will not affect skin and when air contaminants and the site hazards have
been characterized. C is not allowed by OSHA for Chem Emergency Response.
Level D Suits - Answer No respiratory protection. Used when an atmosphere contains no
known hazards. Bunker gear is Level D
Types of tankers and what they carry (what carries chlorine, name of tanker with rings, which
one has vents out the top, what type carries propane) - Answer MC 331: Carries Chlorine and
Propane
MC312/DOT412 has the heavy reinforcement Rings
MC306/DOT406 is a low pressure that has vents
What level of O2 is dangers - Answer 19.5%
, Direct contamination results from direct contact with a contaminant or through cross
contamination
What tanker carries 6,300 gallons and works between 14 and 25 psi (IM-something) - Answer
IM-102 [IMO Type 2] carries 6300 and works between 14 to 25 psi
The physical changes to the material caused by the chemical, which can include swelling,
stiffening, wrinkling, changes in color, and other physical deterioration - Answer Degradation
What level do you wear in the decon zone in the warm zone - Answer One below than the Hot
Zone (level B)
What's it called when you have to go a fast decon - Answer Emergency Decon
Name for cancer causing stuff - Answer Carcinogen
If there is no operations chief, who do you respond to - Answer Incident Commander
If you don't have the right materials to stop contamination what do you do? - Answer Retreat
to safe distance
If a guy is diking, damming, etc. he taking what type of measures - Answer Defensive
3 types of dams. Complete Dam, Underflow dam and ____ dam - Answer Overflow
What senses is safe that can you use to spot a hazard - Answer Sight and sound
What book do you use for BLEVE - Answer ERG
4-5 ERG question - Answer White: Intro, Instruction, Guidance, Placards, and more
Yellow: Materials order by 4-digit UN/NA number
Blue: Materials ordered by dangerous good name
Orange: Safety procedure and direction. Initial response phase
