PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free Special Boiler Operator Practice Questions

Pass your ABSA Special Boiler Operator Certificate of Competency exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More SOPEEC Power Engineering Certifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

SOPEEC 3rd Class Power Engineer Exam

Practice Questions

SOPEEC 1st Class Power Engineer Exam

Practice Questions

SOPEEC 2nd Class Power Engineer Exam

Practice Questions

SOPEEC 4th Class Power Engineer Exam Part 4A

Practice Questions

SOPEEC 4th Class Power Engineer Exam Part 4B

Practice Questions

SOPEEC 5th Class Power Engineer Exam

Practice Questions
2026 Statistics

Key Facts: Special Boiler Operator Exam

50

Exam Questions

ABSA AB-57 Syllabus

65%

Passing Score

ABSA Examination Rules

1.5 hrs

Exam Time Limit

ABSA Schedule

$113.10

Fee (CAD)

ABSA Fee Schedule

250 kW

Max Capacity Limit

Power Engineers Reg

The ABSA Special Boiler Operator certification is a site-specific license for small boiler plants in Alberta. It requires passing a 50-question multiple-choice exam (AB-57 syllabus) with a score of 65% or higher, costing $113.10 CAD.

Sample Special Boiler Operator Practice Questions

Try these sample questions to test your Special Boiler Operator exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Albertan legislative act gives the Alberta Boilers Safety Association (ABSA) its authority to administer pressure equipment safety programs?
A.The Safety Codes Act
B.The Power Engineers Act
C.The Boiler and Pressure Vessel Act
D.The Occupational Health and Safety Act
Explanation: The Safety Codes Act is the primary legislation that governs pressure equipment safety in Alberta, and ABSA is delegated by the government to administer this Act with respect to pressure equipment.
2Under the Alberta Power Engineers Regulation, what is the maximum capacity of a power plant that a Special Boiler Operator is certified to supervise as a chief engineer?
A.250 kW
B.500 kW
C.100 kW
D.1000 kW
Explanation: The Special Boiler Operator Certificate of Competency restricts the holder to supervising a power plant with a capacity not exceeding 250 kW.
3What is the minimum boiler capacity that generally requires supervision by a certified operator under the Alberta Power Engineers Regulation?
A.20 kW
B.10 kW
C.50 kW
D.100 kW
Explanation: Boilers with a capacity exceeding 20 kW must generally be operated by or under the supervision of a certified operator, subject to specific regulatory exemptions.
4According to the Alberta Power Engineers Regulation, how is the heating surface of a boiler converted to capacity in kilowatts (kW)?
A.1 square metre of heating surface is equivalent to 10 kW
B.1 square metre of heating surface is equivalent to 1 kW
C.1 square metre of heating surface is equivalent to 5 kW
D.1 square metre of heating surface is equivalent to 15 kW
Explanation: Section 1(2)(a) of the Alberta Power Engineers Regulation states that 1 square metre of heating surface of a boiler is equivalent to 10 kilowatts (kW).
5A power boiler has a registered heating surface of 18 square metres. What is its capacity in kilowatts (kW) under the Alberta regulations?
A.180 kW
B.18 kW
C.90 kW
D.270 kW
Explanation: Using the regulatory conversion of 1 square metre = 10 kW, a boiler with 18 square metres of heating surface has a capacity of 18 * 10 = 180 kW.
6A heating plant contains two boilers: one fuel-fired boiler with a capacity of 110 kW and another with a capacity of 120 kW. What is the total capacity of this plant, and can a Special Boiler Operator act as the chief engineer?
A.230 kW; yes, because the total capacity does not exceed 250 kW.
B.230 kW; no, because the individual boiler capacities are summed and exceed 200 kW.
C.120 kW; yes, because capacity is determined only by the largest single boiler.
D.250 kW; yes, because the total is exactly at the limit of 250 kW.
Explanation: The total capacity of a plant is the sum of the capacities of all boilers connected to the same header or within the same plant (110 + 120 = 230 kW). Since 230 kW is less than or equal to 250 kW, a Special Boiler Operator is qualified to supervise it.
7An owner wants to install a new steam boiler with a heating surface of 28 square metres. Can a Special Boiler Operator be hired as the chief engineer of this single-boiler plant?
A.No, because the boiler capacity would be 280 kW, which exceeds the 250 kW limit.
B.Yes, because a Special Boiler Operator can operate any single boiler regardless of size.
C.Yes, as long as the operating pressure remains below 103 kPa (15 psi).
D.No, because a Special Boiler Operator is restricted to plants under 20 square metres of heating surface.
Explanation: A heating surface of 28 square metres is equivalent to 28 * 10 = 280 kW. This exceeds the 250 kW maximum limit for a Special Boiler Operator, so a higher class of operator is required.
8What is the status of the Special Boiler Operator Certificate of Competency regarding annual registration renewal and fees in Alberta?
A.It is site-specific and does not require an annual renewal fee.
B.It must be renewed annually by paying the prescribed ABSA fee.
C.It must be renewed every five years by retaking the examination.
D.It is valid for three years and requires submitting continuing education hours.
Explanation: The Special Boiler Operator certificate is site-specific and is currently exempt from the annual renewal registration fee that applies to standard Power Engineer certificates.
9If a Special Boiler Operator leaves their current employer and begins working at a different small boiler plant, what must they do regarding their certificate?
A.They must return the original certificate to ABSA and apply for a replacement certificate for the new site, paying the duplicate fee.
B.They can continue using the original certificate at the new site without notifying ABSA.
C.They must retake the written examination for the new location.
D.They must notify ABSA within 30 days but can keep and use the same physical certificate.
Explanation: Because a Special Boiler Operator Certificate of Competency is issued for a specific plant at a specific location, changing employment requires returning the certificate, submitting a new application for the new site, and paying the replacement fee.
10Under the Pressure Equipment Safety Regulation, who is responsible for ensuring that a pressure vessel is operated safely and maintained in good working order?
A.The owner of the pressure equipment
B.The ABSA Safety Codes Officer
C.The installer or contractor who connected the boiler
D.The manufacturer of the boiler shell
Explanation: The owner of the pressure equipment is legally responsible for its safe operation, maintenance, and compliance with all regulations.

About the Special Boiler Operator Exam

The ABSA Special Boiler Operator Certificate of Competency is a site-specific certification in Alberta. It authorizes the holder to provide general supervision for stationary power plants with a capacity exceeding 20 kW but not exceeding 250 kW. The syllabus (AB-57) covers crucial engineering concepts: the Alberta Safety Codes Act and regulations, firetube and tubeless boiler construction, electric boilers (electrode and immersion type), safety valve principles, water level indicators, blowoff piping, feedwater systems, and boiler water chemistry control.

Assessment

The official ABSA Special Boiler Operator exam consists of 50 multiple-choice questions administered in a 1.5-hour session. Questions test practical knowledge of safety regulations, boiler construction, essential fittings (safety valves, level indicators), and safe operating procedures.

Time Limit

1.5 hours

Passing Score

65%

Exam Fee

$113.10 CAD (Alberta Boilers Safety Association (ABSA))

Special Boiler Operator Exam Content Outline

20%

Legislation and Regulations

Knowledge of the Safety Codes Act, Power Engineers Regulation, Pressure Equipment Safety Regulation, and Pressure Welders Regulation.

30%

Boiler Types and Construction

Understanding firetube and tubeless type boilers, electric boilers (electrode and immersion type), and heat transfer modes.

30%

Boiler Fittings and Valves

Operation and testing of safety valves, water columns, gauge glasses, pressure gauges, blowoff systems, and operating controls.

20%

Boiler Operations and Maintenance

Startup and shutdown procedures, low water cutoff testing, burner safeguard systems, water treatment chemistry, and emergency response.

How to Pass the Special Boiler Operator Exam

What You Need to Know

  • Passing score: 65%
  • Assessment: The official ABSA Special Boiler Operator exam consists of 50 multiple-choice questions administered in a 1.5-hour session. Questions test practical knowledge of safety regulations, boiler construction, essential fittings (safety valves, level indicators), and safe operating procedures.
  • Time limit: 1.5 hours
  • Exam fee: $113.10 CAD

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Special Boiler Operator Study Tips from Top Performers

1Memorize the capacity limits: 20 kW minimum threshold, 250 kW maximum SBO threshold, and the 1 square meter = 10 kW conversion factor.
2Understand safety valve settings: low-pressure steam is limited to 15 psi (103 kPa); low-pressure hot water is limited to 160 psi (1100 kPa) and 121°C (250°F).
3Study safety valve rules: must be mounted vertically, directly to the shell, and require at least 75% of set pressure to pull the test lever safely without seat damage.
4Review the sequence for operating blowoff valves: open quick-opening first, then slow-opening; close slow-opening first, then quick-opening.
5Study boiler chemistry: pH should be maintained between 9.5 and 11.5, softeners exchange calcium/magnesium for sodium, and sodium sulfite is used as an oxygen scavenger.

Frequently Asked Questions

What is the capacity range for a Special Boiler Operator in Alberta?

A Special Boiler Operator is qualified to supervise a power plant with a total capacity exceeding 20 kW but not exceeding 250 kW. Capacity is calculated based on the heating surface (1 square meter of heating surface = 10 kW) or manufacturer's rated capacity.

Is the ABSA Special Boiler Operator Certificate of Competency transferable to other plant locations?

No. The Special Boiler Operator certificate is site-specific. It is issued for one specific plant at a designated location. If you change employers or move to another site, you must return the original certificate to ABSA, submit a new application (Form AB-66) for the new location, and pay a replacement fee.

What is the passing score for the ABSA Special Boiler Operator exam?

The passing mark is 65%. The exam consists of 50 multiple-choice questions, meaning you must answer at least 33 questions correctly.

Does this certificate expire, and are there annual renewal fees?

No, the Special Boiler Operator Certificate of Competency does not expire as long as you remain at the designated plant site, and it is currently exempt from the annual renewal registration fee that applies to other classes of power engineers.

Who can perform repairs or alterations on a boiler under this regulation?

All pressure repairs and alterations on boilers in Alberta must be pre-authorized by ABSA and performed by an organization holding a valid Certificate of Authorization Permit, using welders qualified with a Grade B Pressure Welder certificate.