Part A of the 4th Class Power Engineer certificate exam, known as 4A, is the theory paper. The SOPEEC syllabus splits it into 12 units, A to L, with 55 objectives: mechanics, chemistry and thermodynamics, legislation and codes, plant safety, environment, materials and welding, piping and valves, electricity, instrumentation and controls, plant communication, boilers and boiler systems. SOPEEC says that every jurisdiction requires both papers, that 4A has 100 multiple-choice questions and is 3 hours long in most jurisdictions, and that you need at least 65 per cent on each paper. That is about 1.8 minutes a question. SOPEEC's syllabus and exam pages give no count of questions per unit, and nor do the regulator pages we checked. A Handbook of Formulae and Physical Constants, steam tables and refrigeration tables are normally provided, and you may use the listed code books and a non-programmable calculator. Ontario calls the certificate Operating Engineer, and Alberta numbers the units A1 to A12.
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01What is the 4th Class Power Engineering exam, Part A (4A)?
To earn a 4th Class Power Engineer's Certificate of Competency you pass two exam papers and meet your jurisdiction's other requirements. Part A, called 4A, is theory, legislation and codes, safety and the boiler itself; Part B, called 4B, is operating the plant. SOPEEC's 4th Class exam information page says every jurisdiction requires both papers, that each has 100 multiple-choice questions and is 3 hours long in most jurisdictions, and that each needs at least 65 per cent of the marks. Its 4A sample questions work that out to 1.8 minutes a question, and each sample question has four options, A to D.
It is not a Red Seal exam. SOPEEC, the Standardization of Power Engineer Examinations Committee, sets the syllabus and maintains the exam banks. It answers to the Canadian Association of Chief Inspectors (ACI), which owns the exam materials, and has one representative from each jurisdiction. Each jurisdiction's regulator runs the sittings: ABSA in Alberta, Technical Safety BC, TSASK in Saskatchewan, Inspection and Technical Services in Manitoba, TSSA in Ontario and the others in the table below. Pass all the papers, meet your jurisdiction's requirements, and you can get a Standardized Certificate, which SOPEEC says all Canadian jurisdictions recognize.
The names vary. In Ontario the certificate is a Certificate of Qualification as an Operating Engineer, and TSSA's guide is for the 4th Class Power (Operating) Engineer. Alberta's syllabus, AB-54, numbers the Part A units A1 to A12 instead of A to L, so A1 is Unit A and A12 is Unit L. Technical Safety BC calls the paper 4A1. The free textbook units, A-1 to A-12, follow the same order.
The current SOPEEC Reference Syllabus for Fourth Class is the November 2022 issue of the syllabus that took effect on 1 November 2017. ABSA says AB-54 covers identical subjects, and TSSA says it has adopted the SOPEEC syllabus. Study notes from before 2017 follow the older syllabus.
02What is the exam format by province?
The syllabus is national, but each regulator sets eligibility, booking and rewrite rules. This is what each regulator's own page or guide says; where we could not confirm a format, the table says so.
| Jurisdiction | Regulator | Format | Notes |
|---|---|---|---|
| Alberta | ABSA | 100 multiple choice, 3 hours, 65% on each paper, for all 4th Class papers since 1 January 2023 | Book through CPECS (cpecs.ca). You qualify with a 4th Class course ABSA accepts, the first full term of a two-year power engineering technology program, or a mechanical engineering degree; Part A of a course qualifies you for Part A of the exam. Three failed papers in succession bring a disqualification of at least 6 months. A passed paper counts for 7 years. |
| British Columbia | Technical Safety BC | 100 multiple choice, 3 hours, 65%, since 1 March 2023; the paper is 4A1 | Eligibility starts with an approved 4th Class course or a listed alternative. Three chances to pass, with a letter after each attempt giving your marks and areas to improve. Wait 30 days after a fail; after a third fail you must ask permission to try again. |
| Saskatchewan | TSASK | 100 multiple choice, 3 hours, 65% on each paper | No prerequisites to challenge 4th Class, which TSASK calls entry level. You must reside in Saskatchewan. Set dates in Regina and Saskatoon, limited seats, non-refundable. Wait 30 days after a fail. |
| Manitoba | Inspection and Technical Services | Points to the SOPEEC syllabi; the exam page does not restate the format | Apply on the Power Engineer Examination Application Form; proof of experience or education may be required. |
| Ontario | TSSA (Operating Engineer) | 100 multiple choice, 3 hours, 65% on each paper (guide effective October 2024) | Rewrites allowed after 60 days. TSSA recommends a 4th Class course first. Get your certificate within five years of passing, or rewrite. |
| Nova Scotia | Technical Safety Division | 3 hours for 4th Class papers (2026 to 2027 exam schedule) | Applications must reach Technical Safety 35 days before the exam. Rewrites need a rewrite application. |
| Newfoundland and Labrador | Apprenticeship and Trades Certification Division | Two papers, A and B; 65% on every paper | An approved program equal to the SOPEEC syllabus is required. Fail a paper three times below 45% and you wait three months. |
| New Brunswick, PEI, NWT, Nunavut, Yukon | Offices listed on SOPEEC's members page | SOPEEC members; format not separately confirmed | Ask the office before you book. |
| Quebec | Emploi-Québec (Stationary Enginemen Act) | Joined SOPEEC at the 4th Class level in 2006; format not confirmed | Ask the office before you book. |
Older figures still circulate. SOPEEC's 2017 brief of the revised syllabus and its 2011 note on writing a multiple-choice exam both say 150 questions in 3.5 hours. ABSA gives 100 questions and 3 hours for all 4th Class papers from 1 January 2023, Technical Safety BC from 1 March 2023, and the current SOPEEC syllabus, the 4A samples and TSSA's current guide all say 100 questions and 3 hours. If a document says 150, check its date.
SOPEEC recommends writing in the jurisdiction where you are employed. If you move partway through, the marks from your earlier papers can be forwarded, and the new jurisdiction gives credit under its own regulations.
03What do units A to L cover?
The SOPEEC syllabus numbers its 55 objectives straight through, 1 to 55. The IPECC 4th Class curriculum breaks each into learning outcomes; the summaries below use both, in plain words. The syllabus gives no per-unit question counts, so none are given here.
Unit A: Elementary Mechanics and Dynamics
Nine objectives (1 to 9): basic terms; forces, moments and equilibrium; simple machines, with mechanical advantage, velocity ratio and efficiency; vectors solved graphically; speed, velocity and acceleration; force, work, pressure (gauge and absolute), power and energy; friction; stress, strain and factor of safety; and belt, gear and chain drives. Almost every objective here is a calculation.
Free unit A practice questions: Mechanics & Dynamics →
Unit B: Elementary Chemistry and Thermodynamics
Four objectives (10 to 13): basic chemistry, including bonding, chemical equations and simple stoichiometry; the laws of thermodynamics, specific and sensible heat, and expansion; heat transfer and heat exchangers; and the thermodynamics of steam, including the columns of the steam tables.
Free unit B practice questions: Chemistry & Thermodynamics →
Unit C: Jurisdictional Legislation, Codes and Standards for Power Engineers
Two objectives (14 and 15): the purpose of the jurisdictional Acts and Regulations for boilers, pressure vessels and piping, and of codes and standards. The curriculum outcomes add the power engineer's role and duties, how the profession is regulated in Canada, and the content and use of CSA B51, CSA B52 and the ASME Boiler and Pressure Vessel Code.
Free unit C practice questions: Legislation, Codes & Standards →
Unit D: Power Plant/Heating Plant Safety
Five objectives (16 to 20): plant hazards; safety programs, including work permits and lockout; dangerous materials, with WHMIS, gas cylinders and hydrocarbons; fire safety and the classes of fire; and fire prevention and extinguishing, from portable extinguishers to sprinklers and fire pumps.
Free unit D practice questions: Plant Safety & Fire Protection →
Unit E: Environment
Three objectives (21 to 23): how the plant affects the environment; gas and noise emissions, including greenhouse and acid-rain gases; and liquid and solid emissions, waste disposal and thermal pollution.
Free unit E practice questions: Environment & Emissions →
Unit F: Material and Welding
Three objectives (24 to 26): mechanical properties, alloying and non-ferrous metals; welding processes, weld joints in pressure vessels and heat treatment; and weld defects and testing: visual, penetrant, radiographic and ultrasonic.
Free unit F practice questions: Materials & Welding →
Unit G: Piping and Valves
Two objectives (27 and 28): piping materials, connections, supports, expansion, insulation and drainage, including steam traps and water hammer; and valve designs used in plants and on boilers, including pressure reducing stations and valve maintenance.
Free unit G practice questions: Piping, Valves & Steam Traps →
Unit H: Electricity
Six objectives (29 to 34): AC and DC circuits with Ohm's law, series and parallel resistance and power; magnetism; meters; motors and generators, including power factor; transformers, with basic calculations; and distribution systems, single-line diagrams, fuses and breakers.
Free unit H practice questions: Electricity & Motors →
Unit I: Energy Plant Instrumentation and Controls
Six objectives (35 to 40): control loops; devices that measure pressure, level, flow, temperature, humidity and composition; transmitters, recorders, controllers and actuators; programming controls for boilers and their testing; and electronic and electrical control systems.
Free unit I practice questions: Instrumentation & Controls →
Unit J: Plant Communication
Three objectives (41 to 43): equipment sketches and plant line tracing; plant diagrams such as process flow diagrams and P&IDs; and communication, which the curriculum takes to include legal record-keeping, maintenance management and standard operating procedures.
Free unit J practice questions: Drawings & Communication →
Unit K: Boilers
Six objectives (44 to 49): boiler history, design and components; firetube, watertube and electric boilers; special heating boiler designs; and the differences between ASME Section I and Section IV boilers.
Free unit K practice questions: Boiler Design & Types →
Unit L: Boiler Systems
Six objectives (50 to 55): combustion and combustion equipment; solid, liquid and gaseous fuel systems, with flue gas analysis; draft and combustion air; feedwater systems; blowdown; and fireside cleaning, such as sootblowers.
Free unit L practice questions: Combustion & Boiler Systems →
04Is it on 4A or 4B?
Some topics sound like Part A but sit in Part B. The syllabus gives Part B twelve units, from B1 Lubrication to B12 Types of Plants. Reading the two lists side by side gives these boundaries:
- Pressure relief valves, combustion safety controls, feedwater control devices, boiler fittings and operating and safety controls are B3 Boiler Safety Devices, in 4B. In 4A, boilers come up as designs (Unit K) and systems (Unit L).
- Water treatment is B6. 4A covers feedwater systems (objective 53) and blowdown (objective 54).
- Boiler start-up, operation and lay-up are B4, and preparing a boiler for inspection is B5. Fireside cleaning equipment is 4A (objective 55).
- Pumps and compressors are B2. Steam traps and water hammer are 4A (objective 27).
- Refrigeration and HVAC are B9 to B11. The purpose of the codes, CSA B52 included, is 4A (objective 15).
The 4A sample questions include a low-water fuel cutoff item, a B3 topic. SOPEEC says the samples show style only and may not match any current syllabus, so let the syllabus decide what you study.
Part B has its own guide: what is on the 4th Class Power Engineering exam, Part B (4B), with units B1 to B12, the format by province and how to study for it.
05What do you get in the exam room?
The SOPEEC syllabus and its general exam information page say a Handbook of Formulae and Physical Constants, steam tables and refrigeration tables are normally provided, and the jurisdiction provides a non-technical dictionary. You may also use the examining jurisdiction's Act and Regulations; CSA B51, CSA B52 and their extract; the ASME Boiler and Pressure Vessel Code except Sections VI and VII, or the 2007 ASME Academic Extract and Supplement; ASME B31.1 and B31.3; a non-programmable calculator; and drawing instruments. In most jurisdictions you provide the code books yourself.
Everything is shown to the examiner, and no other reference material is allowed. Bring picture ID; phones are not allowed. A programmable calculator must be reset in front of the examiner, possibly in your exam time, and cannot be used if its memory will not clear. ABSA adds that highlighting and tabs are allowed in reference material.
Code questions come in both imperial and SI units and are built to the 2007 or newer ASME Code, whatever edition you bring. SOPEEC's exam-technique notes tell you to use the Act, Regulations and code books during the exam because they answer many questions, so practise finding things in them fast. Lists vary by jurisdiction; Alberta's AB-54, for example, names its Safety Codes Act. Confirm with your regulator before you buy anything.
06Which parts of 4A are calculations?
The objectives and curriculum outcomes show where the arithmetic is. Unit A is almost all calculation. Unit B has simple stoichiometry (objective 10), sensible heat (11) and steam tables (13). Unit H has Ohm's law for series and parallel circuits and electrical power (29), power factor (32) and transformers (33). Unit L has combustion equations (50) and draft as a pressure difference (52).
The official 4A samples use SI units such as metres per second, kilopascals and degrees Celsius, and the calculation samples are short, one-step items. Code questions come in both imperial and SI. The IPECC curriculum notes that basic mathematics is no longer examined by SOPEEC but runs through the study materials, and its preparatory maths includes converting between SI and imperial units.
The steam-table sample asks for the temperature of saturated steam at a given pressure, with options to two decimal places. On the day, take values from the tables provided at the sitting, not from memory. Practise with your course's tables until finding a saturation temperature, an enthalpy or a dryness fraction takes seconds.
07How should you study for 4A?
Use the 55 objectives as your checklist: A 9, B 4, C 2, D 5, E 3, F 3, G 2, H 6, I 6, J 3, K 6 and L 6. Mark each one solid, shaky or new. The shaky and new ones are your plan.
The SOPEEC syllabus and exam pages give no per-unit question counts, and neither do the ABSA, Technical Safety BC, TSASK or TSSA pages we checked. An objective count is not a question count either, so do not skip a unit because it looks small: Unit C has two objectives but covers the Acts and Regulations and the main boiler, pressure vessel and refrigeration codes. Cover every objective. In British Columbia, the letter after each attempt highlights the areas that need improvement, so use it to aim any rewrite study.
Practise against the clock: 100 questions in 3 hours is 1.8 minutes each, so sit full 100-question papers in one go. SOPEEC's 2011 note on writing its multiple-choice exams, written for the older 150-question papers, says the calculation questions come early in the paper. It suggests answering the quick questions first, marking the uncertain ones and the calculations, coming back to them, and answering every question. The current 4A sample questions also say to leave calculation questions for later.
Most of the regulators we checked expect a course. The SOPEEC syllabus recommends a 4th Class course at a technical institute. ABSA and Technical Safety BC require a course or a listed alternative before you write, Newfoundland and Labrador requires an approved program, and TSSA recommends one. TSASK says there are no prerequisites to challenge 4th Class.
For context, ABSA's statistics for 2015 to 2019 give Alberta's 4A pass rate as 72, 84, 71, 73 and 66 per cent, with 1,375 4A papers attempted in 2019. We found no current national figure; the national statistics on SOPEEC's site are more than ten years old.
08Where are the free 4th Class textbooks?
PanGlobal Training Systems, which published the power engineering learning materials, ceased operations on 30 June 2025. The BCIT Institutional Repository says NAIT, SAIT and BCIT now own those materials jointly, and its Fourth Class collection has the Part A units A-1 to A-12 as PDFs. Each of the twelve Part A unit records carries a Creative Commons BY-NC-SA 4.0 licence, which allows non-commercial use with credit.
Some textbook titles differ from the syllabus, for example: A-3, Introduction to power engineering and its governance in Canada, is Unit C; A-5, Introduction to plant operations and the environment, is Unit E; A-7, Introductory fluid handling technology, is Unit G; A-10, Fundamental industrial communication skills, is Unit J.
TSSA's guide, dated October 2024, still lists PanGlobal as the publisher. The 2007 ASME Academic Extract on the allowed list was also a PanGlobal product, so ask your regulator or course what to bring if you do not have a copy.
09Questions people ask
- How many questions are on the 4th Class Power Engineering 4A exam?
- SOPEEC says the 4A paper has 100 multiple-choice questions and is 3 hours long in most jurisdictions, which is about 1.8 minutes a question. You need at least 65 per cent of the marks on 4A and at least 65 per cent on 4B; each paper is passed on its own. Some older documents still say 150 questions in 3.5 hours; ABSA's page gives 100 questions and 3 hours from 1 January 2023, and Technical Safety BC's from 1 March 2023.
- How many 4A questions come from each unit?
- The SOPEEC syllabus and exam pages give no per-unit question counts for 4A, and neither do the ABSA, Technical Safety BC, TSASK or TSSA pages we checked. The syllabus has 12 units, A to L, with 55 objectives: A 9, B 4, C 2, D 5, E 3, F 3, G 2, H 6, I 6, J 3, K 6 and L 6. The objective count is not a question count, so plan to cover every objective.
- What is the difference between 4A and 4B?
- 4A is the theory paper: mechanics, chemistry and thermodynamics, legislation and codes, safety, environment, materials and welding, piping and valves, electricity, instrumentation and controls, plant communication, boilers and boiler systems. 4B is about operating the plant: lubrication, pumps and compressors, boiler safety devices, plant operation and maintenance, water treatment, prime movers and engines, auxiliary building systems, refrigeration, HVAC, heating and cooling systems, and types of plants. Safety valves, low-water cutoffs and water treatment are 4B topics.
- What can you bring into the 4th Class Power Engineering exam?
- SOPEEC lists the examining jurisdiction's Act and Regulations, CSA B51, CSA B52 and their extract, the ASME Boiler and Pressure Vessel Code except Sections VI and VII or the 2007 ASME Academic Extract, ASME B31.1 and B31.3, pens and pencils, a non-programmable calculator and drawing instruments. The Handbook of Formulae and Physical Constants, steam tables and refrigeration tables are normally provided, and a non-technical dictionary is provided by the jurisdiction. You need picture ID, and phones are not allowed.
- Are the 4th Class Power Engineering textbooks free?
- Yes. PanGlobal Training Systems ceased operations on 30 June 2025, and NAIT, SAIT and BCIT now jointly own the power engineering learning materials. The Part A units, A-1 to A-12, are on the BCIT Institutional Repository as PDFs, and each unit record carries a Creative Commons BY-NC-SA 4.0 licence, which allows non-commercial use with credit to the creators.
10Sources
- SOPEEC: Reference Syllabus, Fourth Class Power Engineer's Certificate of Competency Examination (November 2022, PDF): the 12 Part A units and 55 objectives, the Part B units used for the 4A/4B boundary, the two-paper format of 100 questions in 3 hours each with 65% on each paper, the course recommendation, and the items allowed in the room.
- SOPEEC: Fourth Class exam information: two papers in all jurisdictions, each of 100 multiple-choice questions, 3 hours in most jurisdictions, 65% on each paper, code questions in imperial and SI built to the 2007 or newer ASME Code, and candidates usually supplying the code books.
- SOPEEC: General exam information: the list of items provided and allowed, the calculator, ID and phone rules, the outdated 1983 Academic Extract, and the advice to use the Act, Regulations and code books in the exam.
- SOPEEC: Sample questions 4A (PDF): the style of the questions (four options, SI units, short calculations), the 1.8 minutes a question figure, the advice to leave calculation questions for later, and the warning that the samples may not match the current syllabus.
- SOPEEC: How to write a SOPEEC multiple choice examination (2011, PDF): the note that calculation questions come early in the paper and the suggested order for answering; also the out-of-date 150 questions in 3.5 hours.
- SOPEEC: Brief of the 2017 revised 4th Class syllabus (PDF): the older 150 questions in 3.5 hours figure, quoted as out of date.
- IPECC: Fourth Class curriculum, effective November 2017 (PDF, on the SOPEEC site): the learning outcomes behind each objective, used for the plain-words unit summaries and the list of calculation objectives.
- SOPEEC: About SOPEEC: who SOPEEC is, its relationship to the ACI, and the Standardized Certificate.
- SOPEEC: Members: the member jurisdictions and their offices, including New Brunswick, Prince Edward Island, the territories and Quebec.
- SOPEEC: FAQs: where to write, and moving marks between jurisdictions.
- SOPEEC: Quebec joins SOPEEC (2006, PDF): Quebec's membership at the 4th Class level.
- ABSA: Fourth Class: Alberta's 100 questions and 3 hours from 1 January 2023, 65% on each paper, the eligibility routes, Part A course completion qualifying for Part A, and booking through CPECS.
- ABSA: AB-54 Fourth Class Reference Syllabus, Edition 2 Revision 2 (PDF): the A1 to A12 numbering, subjects identical to the SOPEEC syllabus, and Alberta's list of allowed items.
- ABSA: Power engineers general info and FAQs: the penalty for 3 failed papers in succession, the 7-year validity of passed papers, and highlighting and tabs in reference material.
- ABSA: Alberta Power Engineer Examination and Certification Statistics, 2015 to 2019 (PDF): the Alberta 4A pass rates for 2015 to 2019 and the number of 4A papers attempted in 2019.
- Technical Safety BC: Fourth Class Power Engineer: 100 questions, 3 hours and 65% since 1 March 2023, the 4A1 exam name, eligibility, three attempts, the 30-day wait and the result letter.
- TSASK: 4th Class Power Engineer examination: 100 questions and 3 hours per paper, 65% on each, no prerequisites to challenge, residency, Regina and Saskatoon sittings and the 30-day wait.
- Manitoba Inspection and Technical Services: Examinations: Manitoba's use of the SOPEEC syllabi, the application form and the exam schedule.
- TSSA: 4th Class Power (Operating) Engineer Certification and Examination Guide: Ontario's adoption of the SOPEEC syllabus, 100 questions in 3 hours, 65% on each paper, rewrites after 60 days, the five-year limit and the suggested study materials (guide effective October 2024).
- Nova Scotia Technical Safety: Power engineers: how to apply and the rewrite application.
- Nova Scotia: Technical Safety exam schedule 2026 to 2027 (PDF, linked from the Technical Safety page): 3 hours for 4th Class papers and the 35-day application deadline.
- Newfoundland and Labrador: General conditions for power engineering examinations (February 2022, PDF): the adoption of the SOPEEC framework, the approved-program requirement, 65% on every paper and the three-month wait after three fails below 45%.
- BCIT Institutional Repository: Power Engineering open learning materials: PanGlobal ceasing operations on 30 June 2025, joint ownership by NAIT, SAIT and BCIT, the Fourth Class unit list and the CC BY-NC-SA 4.0 licence on the unit records.
The format, the units and the objectives were checked against the SOPEEC syllabus, SOPEEC's exam information pages and the 4A sample questions, and the provincial rules against each regulator's own page or guide; the SOPEEC, ABSA, Technical Safety BC, TSASK, TSSA and BCIT pages were read again live on October 14, 2026. Where a regulator's page does not state a figure, the table says so instead of filling it in. The unit summaries use the objective titles and the IPECC curriculum outcomes, in our own words. SOPEEC and the regulators are the final word on the exam; if you find one of ours out of date, tell us.
Related: 4th Class Power Engineering practice exam (4A) · Free 4th Class Power Engineering practice questions (4A) · 4th Class Power Engineering exam guide (4B) · How our questions are made · All guides
11Practice for this exam
TicketPrep 4A practice tests cover all twelve units and every one of the 55 objectives, and every answer is explained, all four options. You can try five sample questions with no account.
Ten free questions per trade, no account: free practice questions. How our questions are written and checked: how our questions are made.