ASOPE Boiler Operator Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the ASOPE Boiler Operator Vocabulary Game
A free word game for the ASOPE Boiler Operator exam. Each round shows a clue for one of 20 exam terms across 11 topics. Recall the term, spell it out, then read a short explanation. Rounds pick a random term, so you can keep playing as long as you like.
How to Play
- 1Read the clue and type a term with the right number of letters (3 to 6). Abbreviations count: type the letters only.
- 2Press Check Answer or Enter. Each letter changes color to show how close you are.
- 3You have 6 tries. Stuck? Need a hint? asks the AI tutor for a nudge without giving the term away, and Skip moves to a new term.
- 4After the round, read the explanation, ask the AI to explain it, share your result, or press Next.
- ARight letter, right spot
- AIn the term, wrong spot
- ANot in the term
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Topics in the ASOPE Boiler Operator Vocabulary Game
Boiler types and construction
Valves and fittings
Combustion and burners
Boiler operating controls
Preventive maintenance
Dangerous boiler conditions
Steam systems
Boiler water treatment
Safety and relief valves
Electrical theory
Industry safety
Sources for these terms (16)
- Improving Steam System Performance: A Sourcebook for Industry, Second Edition (DOE/GO-102012-3423, Revised October 2012) · Source checked 2026-11-03
- National Board BULLETIN: Description of Construction and Inspection Procedure for Steam Locomotive and Fire Tube Boilers · Source checked 2026-11-03
- National Board BULLETIN: Low-Water Cutoff: A Maintenance Must · Source checked 2026-11-03
- National Board BULLETIN: Low Water Cut-Off Technology · Source checked 2026-11-03
- National Board BULLETIN: How to Destroy a Boiler -- Part 1 · Source checked 2026-11-03
- National Board BULLETIN: Boiler Efficiency and Steam Quality: The Challenge of Creating Quality Steam Using Existing Boiler Efficiencies · Source checked 2026-11-03
- National Board BULLETIN: Water Maintenance Essential to Prevent Boiler Scaling · Source checked 2026-11-03
- National Board BULLETIN: Steam Traps Affect Boiler Plant Efficiency · Source checked 2026-11-03
- National Board BULLETIN: Preventing Steam/Condensate System Accidents · Source checked 2026-11-03
- National Board BULLETIN: Fuel Firing Apparatus - Natural Gas · Source checked 2026-11-03
- National Board BULLETIN: Temperature Considerations for Pressure Relief Valve Application · Source checked 2026-11-03
- National Board BULLETIN: Suggested Daily Boiler Log Program · Source checked 2026-11-03
- OSHA: Personal Protective Equipment · Source checked 2026-11-03
- OSHA: 29 CFR 1910.1200 Hazard Communication · Source checked 2026-11-03
- NIST Special Publication 330: The International System of Units (SI) (2019 edition) · Source checked 2026-11-03
- Facility Operating Engineer - Third Class (ASOPE) · Source checked 2026-11-03
About the Boiler Operator Exam
The Boiler Operator exam tests the knowledge and skills required to safely operate and maintain stationary boilers, covering ASOPE's entry-level Facility Operating Engineer - Third Class curriculum and the core content areas shared by most state and local stationary engineer licenses.
Exam sponsor: ASOPE (American Society of Power Engineers, Inc.) nationally; state and local licensing agencies where a jurisdiction-specific exam is required. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
50 questions
Time Limit
3 hours (ASOPE Third Class; 4 hours for First Class and above)
Passing Score
70% (ASOPE written exam); state/local boards set their own standard
Exam / Certification Fees
$45 (ASOPE); state and local boards set their own separate fees
Exam sponsor websiteReported exam pass rate: N/A. Pass rates are not publicly available from ASOPE or state/local boiler boards Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the Boiler Operator vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How does the Boiler Operator vocabulary game work?
Each round shows a clue for one of 20 Boiler Operator terms. Guess the term in six tries: green means the right letter in the right spot, yellow means the letter is in the term but in another spot, and gray means it is not in the term. After the round, read the explanation and play the next term.
Where do the Boiler Operator terms come from?
OpenExamPrep researched each term from the ASOPE (American Society of Power Engineers, Inc.) nationally; state and local licensing agencies where a jurisdiction-specific exam is required content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
Is 'Boiler Operator' one standardized national exam?
No. ASOPE (American Society of Power Engineers, Inc.) offers a national, voluntary entry-level license (Facility Operating Engineer - Third Class, a 50-question written multiple-choice exam), but most U.S. states and many cities also run their own boiler or stationary engineer licensing exams with different content, fees, and passing scores. Check your state's or city's boiler board for jurisdiction-specific rules.
How many questions are on the ASOPE Boiler Operator exam?
ASOPE's entry-level Facility Operating Engineer - Third Class exam has 50 written multiple-choice questions. State and local boiler operator exams vary in length.