Indiana Haz-Mat Ops-Awareness Test
Questions 2025/2026 Exam All Answers
and Illustrations Given
What level of hazardous materials training enables fire fighters to recognize a
potential hazardous materials incident, isolate and deny entry to other responders
and the public, evacuate persons in danger, and take defensive action - 🧠 ANSWER
✔✔Operations
What is it called when there is too much fuel in a fuel/air mixture? - 🧠 ANSWER
✔✔Too Rich
How is flammable range related to the relative danger of a substance? - 🧠
ANSWER ✔✔The wider the ranger, the more dangerous the substance is.
, What mnemonic helps fire fighters remember a set of lighter-than-air gases? - 🧠
ANSWER ✔✔4H MEDIC ANNA
A change in the state of a material is known as a ________ change - 🧠 ANSWER
✔✔Physical
When a chemical change occurs, the event is usually accompanied by - 🧠
ANSWER ✔✔The release of some form of energy
What is the temperature at which a flammable liquid will ignite without the need
for an external ignition source - 🧠 ANSWER ✔✔Ignition Temperature
What is it called when there is not enough fuel in a fuel/air mixture - 🧠 ANSWER
✔✔Too Lean
How does the vapor pressure of a liquid relate to its rate of evaporation - 🧠
ANSWER ✔✔The greater the vapor pressure, the faster a liquid will evaporate
Which is a type of radiation? - 🧠 ANSWER ✔✔Alpha
What is the term for a catastrophic failure of a pressurized cylinder of liquid - 🧠
ANSWER ✔✔BLEVE
Questions 2025/2026 Exam All Answers
and Illustrations Given
What level of hazardous materials training enables fire fighters to recognize a
potential hazardous materials incident, isolate and deny entry to other responders
and the public, evacuate persons in danger, and take defensive action - 🧠 ANSWER
✔✔Operations
What is it called when there is too much fuel in a fuel/air mixture? - 🧠 ANSWER
✔✔Too Rich
How is flammable range related to the relative danger of a substance? - 🧠
ANSWER ✔✔The wider the ranger, the more dangerous the substance is.
, What mnemonic helps fire fighters remember a set of lighter-than-air gases? - 🧠
ANSWER ✔✔4H MEDIC ANNA
A change in the state of a material is known as a ________ change - 🧠 ANSWER
✔✔Physical
When a chemical change occurs, the event is usually accompanied by - 🧠
ANSWER ✔✔The release of some form of energy
What is the temperature at which a flammable liquid will ignite without the need
for an external ignition source - 🧠 ANSWER ✔✔Ignition Temperature
What is it called when there is not enough fuel in a fuel/air mixture - 🧠 ANSWER
✔✔Too Lean
How does the vapor pressure of a liquid relate to its rate of evaporation - 🧠
ANSWER ✔✔The greater the vapor pressure, the faster a liquid will evaporate
Which is a type of radiation? - 🧠 ANSWER ✔✔Alpha
What is the term for a catastrophic failure of a pressurized cylinder of liquid - 🧠
ANSWER ✔✔BLEVE
