TCFP HazMat Operations Questions & Answers 2026/2027 | Hazmat Exam Prep

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Tcfp HazMat Operations
Analyzing a hazardous material incident to determine the scope of the problem involves... -
ANS-1. Surveying the incident to identify containers and materials involved, determine if wether
hazardous material has been released and evaluate the surrounding conditions
2. Collect hazard and response information from SDS, CHEMTREC and shipping/manufacturer
contracts
3.Predict the behavior of Hazardous materials and its container
4.Estimate the potential harm through TRACE-MP

Boiling Point.. - ANS-Boiling point is the temperature at which vapor pressure is equal or greater
than atmospheric pressure.

When a liquid inside a container begins to boil, the increase in vapor pressure may exceed the
vessel's ability to relieve excess pressure. Causing a catastrophic failure and BLEVE

Chemical Reactivity is.. - ANS-The tendency of a substance to undergo chemical changes in a
system

CHEMTREC - ANS-CHEMTREC is the acronym for the Chemical Transportation Emergency
Center. It is a 24-hour emergency response service that provides assistance in the handling of
incidents involving hazardous materials

Cone Roof tank - ANS-Cone-shaped or pointed roofs with weak roof-to-shell seams that will
break if the container becomes overpressured
-when partially full the empty space in the container contains dangers vapors
Contents:flammable, combustible or corrosive liquids (Non pressured)

Corrosivity is.. - ANS-Having the quality of corroding or eating away

Covered Floating Roof tank - ANS-Has a fixed cone roof with vents along the top edge, and a
floating deck inside that stays on the surface of the liquids to minimize vapors
-above ground
-non-pressure
Contents: flammable/combustible liquids

Describe the response options available for Crime Scene management and evidence
preservation - ANS-1. Maintain scene control
2. Limit access
3. Maintain chain of custody
4. Coordinate with AHJ




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Describe the response options available for Defensive Control Techniques - ANS-1. Damming
(Overflow or Underflow)
2. Diking
3. Retention
4. Dispersion
5. Absorption
6. Adsorption
7. Dilution
8. Dissolution
9. Diversion
10. Vapor dispersion
11. Vapor suppression
12. Ventilation
13. Remote valve shutoff

Describe the response options available for Evacuation - ANS-1. Full scale evacuation
2. Shelter-in-place
3. Combination

Describe the response options available for Exposure protection/Isolating the Area -
ANS-1.Establish initial isolation zone
2.Establish protective action distance
3. Establish control zones

Describe the response options available for Recovery and Termination - ANS-1. Short-term
recovery
2. Long-term recovery
3. Termination activities
a)Debriefing
b) Critique
c) Post incident analysis
4. Demobilization

Describe the response options available for Search and Rescue - ANS-1. Based on training and
equipment
2. Risk-benefit analysis (risk a lot to save a lot, risk a little to save a little)

Describe: Compressed gas tube trailers - ANS-Pressure at 3000 to 5000 psi
Individual steel cylinders stacked and banded together
Usually has overpressure device for each cylinder
Valves are protected in the rear

Contents: Helium, hydrogen, methane and other gases




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Describe: Corrosive liquid tanks - ANS-MC 312, DOT 412,
Pressure less thean 75 psi
Typical capacity 7000 gallons
Rubber lined or steel
Small diameter round shape when viewed from the rear
Splashguard serving as rollover protection around the valve fittings

Contents: Corrosive liquids (usually acids)

Describe: Cryogenic Intermodal tanks IMO Type 7 - ANS-Contents: Refrigerated liquid gases,
argon, oxygen, helium

Describe: Cryogenic liquid tank - ANS-Insulated, vacuum jacketed tanks with safety release
valves and rupture disk. Capacities can range from 300 to 400,000 gallons.

Refrigerated storage tanks: less than 15psi
High pressure cryogenic tanks: greater than 15psi

Describe: Cryogenic liquid tank cars (railroad) - ANS-Fittings are in ground level cabinets at
diagonal corners of the car or in the center of one end of the car.

Describe: Cryogenic liquid tanks - ANS-MC338,
Pressure at less than 22 psi
Well insulated steel tank
Round tank with flat ends
Large and bulky double shelling and heavy insulation
Loading and Unloading station attached at either the rear or at the front of the rear dual wheels

Contents: Liquid oxygen, liquid nitrogen, liquid carbon dioxide, and other gases that have been
liquefied by lowering their temperature

Describe: Dry Bulk cargo tanks - ANS-Pressure less than 22 psi
Typically not under pressure
Bottom valves
shape varies but has v shaped bottom unloading compartments
Top manway assemblies

Contents: Calcium carbide, oxidizers, corrosive solids, cement, plastic pellets and fertilizers

Describe: High Pressure tanks - ANS-MC 331,
Pressure above 100 psi
Typical maximum capacity of 11,500 gallons
Single steel compartment
Bolted manway on the front or rear




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