Texas Hazardous Materials Technician Licensing Exam Questions & Answers PDF 2026

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Licensing Exam – b b




Test Questions And Correct Answers (Verified A
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nswers) Plus Rationales 2026/2027 Q&A | Insta b b b b b b




nt Download Pdf
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1.
What is the primary responsibility of a Hazardous Materials Technician at an incid
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ent scene? b


A) Evacuating civilians b


B) Providing emergency medical care b b b


C) Stopping the release of hazardous substances b b b b b


D) Directing traffic b




Answer: C) Stopping the release of hazardous substances
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Technicians are trained to approach, contain, and stop hazardous material release
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s using specialized skills and protective equipment.
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2.
Which of the following is a Level A protective suit primarily designed to provide?
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A) Splash protection only
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B) Maximum vapor and chemical protection
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C) Fire resistance only
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D) Minimal respiratory protection
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Answer: B) Maximum vapor and chemical protection
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Level A protection includes a fully encapsulated suit and SCBA, offering the highest level
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of respiratory, skin, and eye protection.
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3.

,The Emergency Response Guidebook (ERG) is most useful during which phase of a
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hazardous materials incident?
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A) Termination
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B) Mitigation
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C) Initial response
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D) Recovery b




Answer: C) Initial response b b b


The ERG provides first responders with quick reference data for initial identification
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, protective distances, and immediate actions.
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4.
Which U.S. agency regulates the transportation of hazardous materials?
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A) OSHA b


B) EPA b


C) DOT b


D) NRC b




Answer: C) DOT b b


The U.S. Department of Transportation oversees labeling, placarding, and safe mo
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vement of hazardous materials in commerce.
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5.
What does the red quadrant on the NFPA 704 diamond represent?
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A) Health hazard
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B) Flammability hazard
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C) Reactivity hazard
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D) Special information
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Answer: B) Flammability hazard b b b


The NFPA 704 red section indicates flammability risk on a 0–
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4 scale, with higher numbers meaning greater hazard.
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,6.
When approaching a hazardous material spill, technicians should:
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A) Approach from uphill and upwind
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B) Approach directly downwind
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C) Approach from the lowest point
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D) Approach quickly to save time
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Answer: A) Approach from uphill and upwind
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Approaching from uphill and upwind reduces exposure to vapors and liquids.
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7.
A material with a pH of 2 is considered:
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A) Neutral
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B) Weakly alkaline
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C) Strongly acidic
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D) Strongly alkaline
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Answer: C) Strongly acidic b b b


The pH scale below 7 indicates acidity; 2 is considered strongly acidic and highly corro
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sive.


8.
Which federal regulation covers worker safety related to hazardous materials?
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A) 29 CFR 1910.120
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B) 40 CFR Part 261
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C) 49 CFR Part 172
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D) 29 CFR 1910.134
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Answer: A) 29 CFR 1910.120 b b b b


This is OSHA’s HAZWOPER standard, which governs hazardous waste operations
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and emergency response.
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9.

, Which of the following is a sign of chlorine gas exposure?
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A) Sweet taste in mouth
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B) Severe eye irritation and coughing
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C) Metallic taste
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D) Skin blistering only
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Answer: B) Severe eye irritation and coughing
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Chlorine gas causes burning eyes, coughing, chest tightness, and respiratory distre
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ss.


10.
What is the minimum respiratory protection required for a technician entering an
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IDLH (Immediately Dangerous to Life and Health) environment?
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A) Air-purifying respirator b


B) SCBA (Self-Contained Breathing Apparatus)
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C) N95 mask b


D) Powered Air-Purifying Respirator (PAPR) b b b




Answer: B) SCBA (Self-Contained Breathing Apparatus)
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An SCBA provides an independent air supply, making it essential for IDLH atmosphe
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res.


11.
What is the most reliable method to identify an unknown hazardous substance at an
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incident scene? b


A) Container shape and size b b b


B) Shipping papers and labels b b b


C) Smelling the substance b b


D) Asking bystanders b




Answer: B) Shipping papers and labels
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Shipping papers, placards, and labels provide regulatory identification and are safe
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r and more reliable than sensory methods.
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