PRO BOARD HAZMAT TECH EXAM REAL EXAM 2026 | ALL QUESTIONS
AND CORRECT ANSWERS | VERIFIED ANSWERS | BRAND NEW
VERSION!
Question 1
Which of the following are common toxic gases detected by multi-gas sensors?
A) Ammonia, Chlorine, Methane, and Oxygen
B) Ammonia, Sulfur Dioxide, Carbon Monoxide, and Hydrogen Sulfide
C) Carbon Dioxide, Carbon Monoxide, Nitrogen, and Argon
D) Hydrogen Cyanide, Propane, Butane, and Methane
E) Sulfur Dioxide, Chlorine, Ethane, and Oxygen
Correct Answer: B) Ammonia, Sulfur Dioxide, Carbon Monoxide, and Hydrogen Sulfide
Rationale: These four gases (NH3, SO2, CO, H2S) are common industrial hazards and are
frequently included as sensors in a multi-gas monitor designed for toxic gas detection.
Question 2
What is the class designation for a railcar with the specification marking DOT111A60ALW1?
A) ALW1
B) A60
C) 60ALW1
D) 111A
E) DOT111
Correct Answer: E) DOT111
Rationale: The first part of the specification marking on a railcar indicates its general class. In
this case, DOT111 is the class designation for a non-pressurized (general service) tank car.
Question 3
What is the primary difference between Type B and Type C radioactive packaging?
A) The quantity of radioactive material they can carry.
B) The level of shielding provided.
C) The type of transport and the severity of the accident survival requirements.
,D) Type C is for liquids, and Type B is for solids.
E) Type B is for domestic transport, and Type C is for international.
Correct Answer: C) The type of transport and the severity of the accident survival
requirements.
Rationale: Type B packaging has stringent requirements to withstand severe accidents. Type C
packaging is designed for transport by air and has even more rigorous requirements to survive
high-speed impact and fire, reflecting the greater risks of air transport.
Question 4
Which type of radioactive packaging is used for small quantities of material but with higher
concentrations of radioactivity than those shipped in industrial packaging?
A) Excepted
B) Type A
C) Type B
D) Type C
E) Industrial
Correct Answer: B) Type A
Rationale: Type A packaging is used for radioactive materials with a specific activity level that
is higher than what is allowed in Excepted or Industrial packaging. It is designed to withstand
normal transport conditions without loss of contents.
Question 5
Which of the following is NOT one of the five main types of radioactive packaging?
A) Excepted
B) Type A
C) Type D
D) Type C
E) Industrial
,Correct Answer: C) Type D
Rationale: The five standard categories of radioactive material packaging are Excepted,
Industrial, Type A, Type B, and Type C. There is no "Type D" category.
Question 6
A device introduced into a pipeline to separate products or to clean and test the pipeline is
known as a:
A) Slug
B) Scraper
C) Pig
D) Plug
E) Diverter
Correct Answer: C) Pig
Rationale: A "pig" is the industry term for a device that travels through a pipeline. Pipeline
Inspection Gauges (PIGs) are used for various maintenance tasks, including cleaning,
inspection, and separating different products being transported in the same line.
Question 7
A document that contains a list of items learned through managing an incident and provides
recommendations for improvement is the:
A) Incident Action Plan (IAP)
B) Post-Incident Analysis (PIA)
C) Lessons Learned report
D) Activity Log
E) Exposure Record
Correct Answer: C) Lessons Learned report
Rationale: The Lessons Learned report is a key component of incident termination. Its purpose
is to capture both successes and failures to improve future responses.
Question 8
What is a common source of leaks on a standard 55-gallon drum?
, A) The chime
B) The bung
C) A gouge
D) A score
E) The seam
Correct Answer: B) The bung
Rationale: The bung is the threaded opening and plug on the top or side of a drum. The
threads or gasket of the bung are a very common failure point, leading to leaks.
Question 9
To accomplish the rolling-slide in method of overpacking a 55-gallon drum, the overpack drum
should be tilted at an approximate angle of:
A) 15°
B) 25°
C) 35°
D) 45°
E) 60°
Correct Answer: C) 35°
Rationale: Tilting the overpack drum to approximately 35° allows the leaking drum to be
rolled up the edge and then slid into the overpack with minimal effort and spillage.
Question 10
Appendix A of OSHA 1910.120 outlines two non-mandatory test methods for evaluating the
integrity of totally encapsulating chemical suits: the air pressure test and the:
A) Water test
B) Smoke test
C) Permeation test
D) Ammonia test
E) Halogen test
AND CORRECT ANSWERS | VERIFIED ANSWERS | BRAND NEW
VERSION!
Question 1
Which of the following are common toxic gases detected by multi-gas sensors?
A) Ammonia, Chlorine, Methane, and Oxygen
B) Ammonia, Sulfur Dioxide, Carbon Monoxide, and Hydrogen Sulfide
C) Carbon Dioxide, Carbon Monoxide, Nitrogen, and Argon
D) Hydrogen Cyanide, Propane, Butane, and Methane
E) Sulfur Dioxide, Chlorine, Ethane, and Oxygen
Correct Answer: B) Ammonia, Sulfur Dioxide, Carbon Monoxide, and Hydrogen Sulfide
Rationale: These four gases (NH3, SO2, CO, H2S) are common industrial hazards and are
frequently included as sensors in a multi-gas monitor designed for toxic gas detection.
Question 2
What is the class designation for a railcar with the specification marking DOT111A60ALW1?
A) ALW1
B) A60
C) 60ALW1
D) 111A
E) DOT111
Correct Answer: E) DOT111
Rationale: The first part of the specification marking on a railcar indicates its general class. In
this case, DOT111 is the class designation for a non-pressurized (general service) tank car.
Question 3
What is the primary difference between Type B and Type C radioactive packaging?
A) The quantity of radioactive material they can carry.
B) The level of shielding provided.
C) The type of transport and the severity of the accident survival requirements.
,D) Type C is for liquids, and Type B is for solids.
E) Type B is for domestic transport, and Type C is for international.
Correct Answer: C) The type of transport and the severity of the accident survival
requirements.
Rationale: Type B packaging has stringent requirements to withstand severe accidents. Type C
packaging is designed for transport by air and has even more rigorous requirements to survive
high-speed impact and fire, reflecting the greater risks of air transport.
Question 4
Which type of radioactive packaging is used for small quantities of material but with higher
concentrations of radioactivity than those shipped in industrial packaging?
A) Excepted
B) Type A
C) Type B
D) Type C
E) Industrial
Correct Answer: B) Type A
Rationale: Type A packaging is used for radioactive materials with a specific activity level that
is higher than what is allowed in Excepted or Industrial packaging. It is designed to withstand
normal transport conditions without loss of contents.
Question 5
Which of the following is NOT one of the five main types of radioactive packaging?
A) Excepted
B) Type A
C) Type D
D) Type C
E) Industrial
,Correct Answer: C) Type D
Rationale: The five standard categories of radioactive material packaging are Excepted,
Industrial, Type A, Type B, and Type C. There is no "Type D" category.
Question 6
A device introduced into a pipeline to separate products or to clean and test the pipeline is
known as a:
A) Slug
B) Scraper
C) Pig
D) Plug
E) Diverter
Correct Answer: C) Pig
Rationale: A "pig" is the industry term for a device that travels through a pipeline. Pipeline
Inspection Gauges (PIGs) are used for various maintenance tasks, including cleaning,
inspection, and separating different products being transported in the same line.
Question 7
A document that contains a list of items learned through managing an incident and provides
recommendations for improvement is the:
A) Incident Action Plan (IAP)
B) Post-Incident Analysis (PIA)
C) Lessons Learned report
D) Activity Log
E) Exposure Record
Correct Answer: C) Lessons Learned report
Rationale: The Lessons Learned report is a key component of incident termination. Its purpose
is to capture both successes and failures to improve future responses.
Question 8
What is a common source of leaks on a standard 55-gallon drum?
, A) The chime
B) The bung
C) A gouge
D) A score
E) The seam
Correct Answer: B) The bung
Rationale: The bung is the threaded opening and plug on the top or side of a drum. The
threads or gasket of the bung are a very common failure point, leading to leaks.
Question 9
To accomplish the rolling-slide in method of overpacking a 55-gallon drum, the overpack drum
should be tilted at an approximate angle of:
A) 15°
B) 25°
C) 35°
D) 45°
E) 60°
Correct Answer: C) 35°
Rationale: Tilting the overpack drum to approximately 35° allows the leaking drum to be
rolled up the edge and then slid into the overpack with minimal effort and spillage.
Question 10
Appendix A of OSHA 1910.120 outlines two non-mandatory test methods for evaluating the
integrity of totally encapsulating chemical suits: the air pressure test and the:
A) Water test
B) Smoke test
C) Permeation test
D) Ammonia test
E) Halogen test
