Based on the Red Seal Steamfitter/Pipefitter standard, ASME piping principles & trade math
Practice on the go and jump straight back to where you left off.
About the certification
In Ontario and across Canada, Steamfitter / Pipefitter is trade code 307A (Red Seal Trade ID 230). The written Certificate of Qualification exam is administered through Skilled Trades Ontario and provincial apprenticeship authorities. Steamfitter is a Red Seal designated trade, so passing the qualifying exam awards both provincial certification and the Interprovincial Red Seal endorsement.
The Red Seal Steamfitter exam contains 130 multiple-choice questions with a 70% pass mark (91/130), and candidates are allotted up to 4 hours (240 minutes). Competencies are grounded in the Red Seal Occupational Standard (RSOS), ASME B31.1/B31.3 piping codes, CSA B51 boiler & pressure vessel standards, and provincial safety regulations (O. Reg. 213/91).
ExamHub's free 307A practice quiz includes 205 original questions across all seven official exam blocks, complete with step-by-step trade math and formula derivations.
What's covered
Categories follow the Red Seal Major Work Activity breakdown, balancing high-pressure steam, process piping, fabrication geometry, and rigging safety.
Try a few
Five sample questions from the question bank with detailed calculation steps shown.
Why: O. Reg. 632/05 s. 18(2)-(3): when a confined space has been unoccupied and unattended, tests must be performed before a worker enters or re-enters, using calibrated instruments suited to the hazards. Acceptable oxygen content is at least 19.5% and not more than 23% by volume (s. 1(1)).
Why: For a 45° offset, Travel = Offset × 1.4142 (Offset ÷ sin 45°). Calculating: 18 in × 1.4142 = 25.46 inches center-to-center.
Why: Tension per leg = (Total Load ÷ Number of legs) ÷ sin(θ). For a 60° angle: (6,000 lb ÷ 2) ÷ sin(60°) = 3,000 lb ÷ 0.8660 = 3,464 lb per leg.
Why: The Hartford loop is a protective piping arrangement that connects the condensate return into the balance pipe just below the boiler water line, preventing the boiler from being siphoned dry if a return line breaks.
Why: Using the official Red Seal hydronic formula: gpm = Btuh ÷ (500 × ΔT). Calculating: 250,000 ÷ (500 × 20) = 250,000 ÷ 10,000 = 25.0 gpm.
FAQ
The interprovincial Red Seal Steamfitter/Pipefitter (307A) exam consists of 130 multiple-choice questions. ExamHub's practice question bank includes 205 questions, and Test Mode generates a full 130-question timed simulation.
The pass mark is 70% across Canada. On the 130-question Red Seal examination, candidates must achieve at least 91 correct answers to earn their Certificate of Qualification and Red Seal endorsement.
Candidates are allotted up to 4 hours (240 minutes) to complete the 130 multiple-choice questions. ExamHub's timed Test Mode mirrors this 4-hour countdown.
The exam is divided across seven Major Work Activities: Common Occupational Skills (16 Qs), Layout/Fabrication/Installation (29 Qs), Rigging & Hoisting (15 Qs), Steam & Condensate Systems (24 Qs), Heating/Cooling/Process Piping (27 Qs), Renewable Energy (8 Qs), and Commissioning/Turnover (11 Qs).
No. These are original practice questions written by ExamHub based on the Red Seal Occupational Standard (RSOS), ASME B31.1/B31.3 codes, and Ontario safety standards. They are designed for practice and are not copies of actual exam questions.