2026/2027 | Actual Exam | Graded A+ Certification Prep |
Complete Solutions | Pass Guaranteed - A+ Graded
TEST OVERVIEW:
● Total Questions: 100
● Time Limit: 3 hours
● Passing Score: 70% (Awareness), 75% (Operations)
● Standards Reference: OSHA 29 CFR 1910.120, NFPA 470 (2022), DOT ERG 2024,
TCFP Standards
SECTION 1: AWARENESS LEVEL - RECOGNITION AND IDENTIFICATION (15
Questions)
Q1: You respond to a motor vehicle accident on Interstate 35. The overturned
tractor-trailer displays a diamond-shaped placard with a red top section, white bottom
section, and the number "4" in the center. The driver is unconscious near the vehicle.
What is your immediate action?
A. Approach the vehicle to read the shipping papers and identify the exact chemical
name
B. Establish initial isolation distance of 150 feet in all directions, identify this as a
flammable solid (Class 4.1), and request HMRT from a safe upwind position [CORRECT]
C. Enter the cab to check for additional placards and container specifications
,D. Begin patient extrication immediately while wearing standard turnout gear
Correct Answer: B
Rationale: The placard described is the Class 4.1 Flammable Solid placard (red/white
split with number 4). Per DOT ERG 2024 Guide 170 (Flammable Solids), the initial
isolation distance for a small spill is 150 feet (50 meters) in all directions. OSHA 29 CFR
1910.120(q)(6)(i) mandates Awareness-level personnel recognize hazards, protect
themselves, and notify authorities—NEVER approach to investigate. Option A violates
isolation protocols; Option C places responder in danger zone; Option D ignores
chemical hazard and PPE requirements. The unconscious driver creates a rescue vs.
recovery decision point—Awareness-level personnel do NOT perform rescue in
hazardous atmosphere.
Q2: At a fixed facility, you observe a 55-gallon drum with a yellow band at the top and
the words "OXIDIZER" and "5.1" visible. A white vapor cloud is forming at ground level.
What does this indicate?
A. The material is a Class 8 Corrosive and requires base neutralization
B. This is a Class 5.1 Oxidizer; the vapor suggests possible decomposition or reaction
with combustibles—establish 800-foot isolation and notify HMRT [CORRECT]
C. The yellow color indicates radioactive material; evacuate 3000 feet immediately
D. Standard fire attack with fog streams is appropriate for oxidizer control
Correct Answer: B
,Rationale: Class 5.1 Oxidizers (yellow placard/drum marking with "OXIDIZER" and "5.1")
support combustion and can react violently with organic materials. The vapor cloud
indicates potential decomposition or reaction. DOT ERG 2024 Guide 140 recommends
800 feet (250 meters) initial isolation for oxidizers in small spills. Yellow drum tops
indicate oxidizers per NFPA 704/ANSI labeling standards. Option A confuses oxidizers
with corrosives (white top); Option C confuses oxidizer yellow with radioactive yellow
(which uses trefoil symbol); Option D is catastrophic—water on oxidizers can accelerate
decomposition or cause explosive reactions.
Q3: A railcar involved in a derailment displays the following markings: "UN 1075" on an
orange panel, a red diamond placard with flame symbol, and the words "LIQUEFIED
PETROLEUM GAS." The car is upright but hissing. What is the correct interpretation?
A. UN 1075 is a flammable gas (Class 2.1) requiring 800-foot initial isolation per ERG
Guide 115 [CORRECT]
B. This is a non-flammable compressed gas requiring only 50-foot isolation
C. UN 1075 indicates a toxic gas requiring Level A PPE for all personnel
D. The hissing indicates the relief valve is operating normally; no special precautions
needed
Correct Answer: A
Rationale: UN 1075 = Liquefied Petroleum Gas (Propane/Butane mixture), a Class 2.1
Flammable Gas. DOT ERG 2024 Guide 115 (Flammable Gases) specifies 800 feet (250
meters) initial isolation for small spills due to flammability range (2.1-9.5% LEL) and
vapor density >1 (settles in low areas). The hissing indicates active release—extremely
, dangerous. Option B confuses 2.1 with 2.2 (non-flammable); Option C confuses with
toxic gases (Class 2.3); Option D is fatal misinterpretation—relief valve operation during
derailment indicates potential BLEVE (Boiling Liquid Expanding Vapor Explosion)
hazard.
Q4: You discover a package in a public building with the following characteristics:
6-sided box, no visible wires, oily stains on exterior, protruding nails, and excessive
postage. The label shows "TOXIC BY INHALATION" and "6.1" with a skull/crossbones
symbol. What is your action?
A. Carefully open the package to determine exact contents using PPE
B. Isolate the area 300 feet, evacuate downwind, treat as CBRNE/WMD possible, and
request bomb squad + HMRT [CORRECT]
C. Move the package to a safe location using standard work gloves
D. Spray with decontamination solution to neutralize potential toxins
Correct Answer: B
Rationale: This is a suspicious package with multiple indicators: excessive postage,
protruding nails (shrapnel), oily stains (chemical residue), and Class 6.1 Toxic Material
labeling. NFPA 470 (2022) Chapter 7 and TCFP WMD protocols require treating such
findings as potential CBRNE devices. DOT ERG 2024 Guide 153 (Toxic Materials)
recommends 300 feet initial isolation for toxic solids/liquids. The combination of
explosive and toxic indicators demands bomb squad and HMRT coordination. Options
A, C, and D represent fatal violations of isolation and evidence preservation protocols.