Red Seal Painter & Decorator 404C: 2026 Weighting Guide
The Red Seal Painter and Decorator (404C) Interprovincial Examination contains 130 multiple-choice questions, distributed across 6 Major Work Activities (MWAs). Knowing how those questions are split is the difference between studying evenly and studying where the marks actually are.
Painter and Decorator (404C) Exam Breakdown (Official)
- Total Exam Questions: 130 multiple-choice questions
- Major Work Activities: 6 (A–F)
- Source: Red Seal Exam Breakdown — Painter and Decorator (404C), red-seal.ca
- Time allowed: 4 hours — the same for every Red Seal trade, whether the paper is 100 or 150 questions
- Passing mark: 70% (91 / 130 correct)
- Time and pass mark are set provincially, not by the Red Seal Occupational Standard. Confirmed against Skilled Trades Ontario and SkilledTradesBC.
1. Question count by Major Work Activity
The figures below come directly from the official Red Seal breakdown:
| Major Work Activity | Share | Questions |
|---|---|---|
| MWA A Performs common occupational skills |
15% | 20 Qs |
| MWA B Prepares surfaces |
23% | 30 Qs |
| MWA C Prepares and applies residential, institutional and commercial paints, coatings and finishes |
24% | 31 Qs |
| MWA D Prepares and applies wall coverings |
7% | 9 Qs |
| MWA E Prepares and applies wood finishes |
8% | 11 Qs |
| MWA F Prepares and applies industrial paints and coatings |
22% | 29 Qs |
2. What the weighting tells you to study first
The two heaviest blocks carry 47% of the paper between them: MWA C (Prepares and applies residential, institutional and commercial paints, coatings and finishes, 31 questions) and MWA B (Prepares surfaces, 30 questions). Prioritizing high-weight blocks first builds your cushion toward the 91-question pass threshold.
A practical priority sequence by exam weight is: C → B → F → A → E → D, adjusted for which areas you perform least often on the job.
3. Three questions at exam standard
These are representative questions from the Red Seal Pass Painter and Decorator (404C) bank (1,300 questions total), shown with worked explanations:
A painter needs to maintain 50 PSI atomization air pressure at a conventional air spray gun located 75 feet from the compressor. The gun requires 12 CFM of air. What is the minimum recommended inner diameter (ID) air hose to ensure minimal pressure drop and adequate air volume delivery?
- A) 1/4 inch
- B) 3/8 inch
- C) 1/2 inch
- D) 5/8 inch
Answer: C
For air tools requiring 10-15 CFM over distances exceeding 50 feet, a 1/2-inch ID air hose is typically recommended. Smaller hoses would cause a significant pressure drop over such a distance, leading to insufficient air pressure and volume at the gun, which negatively impacts atomization and spray quality.
An old painted plaster wall that is stable but chalky and porous is being prepared for a large patch with new plaster. Why is a bonding agent applied first?
- A) To make the new plaster dry faster
- B) To bridge the old surface and the new plaster
- C) To keep the old paint from absorbing water on site.
- D) To add colour to the new plaster
Answer: B
A bonding agent forms a link between the weak old surface and the patch so the patch does not debond. In professional painting and decorating practice, 'To bridge the old surface and the new plaster' is the verified standard operating method because it directly rectifies the substrate or application defect while strictly complying with architectural coating standards. Conversely, alternative actions like 'To make the new plaster dry faster' or 'To keep the old paint from absorbing water' fail to resolve the root technical fault and risk film failure or environmental non-compliance. SSPC and NACE surface preparation standards require precise mechanical profile depth, verified chemical contaminant extraction, and moisture limits prior to applying protective coating systems.
During the removal of old wallpaper from a gypsum board (drywall) surface, you notice that the paper facing of the drywall is tearing away in several areas, exposing the gypsum core. What is the correct procedure to address this damage before applying a new wall covering or paint?
- A) Feather torn paper edges, apply drywall compound, sand, and seal with primer.
- B) Saw out entire gypsum partition sections and install replacement drywall panels.
- C) Roll heavy coat of exterior alkyd primer directly over raw torn gypsum cores.
- D) Saturate torn paper facing with hot water and roll flat with heavy steel rollers.
Answer: A
When the drywall paper facing tears, the exposed gypsum core becomes highly absorbent and friable. The correct procedure is to feather out the torn edges to create a smooth transition, apply a thin skim coat of drywall compound to fill and smooth the damaged area, sand it smooth, and then seal it with a appropriate primer/sealer (PVA or acrylic) to equalize porosity and prevent flashing or 'fuzzing' of the remaining paper. Replacing entire sections (B) is excessive for surface damage. Oil-based primer (C) is not sufficient to repair the damage and may not properly seal the exposed gypsum. Simply re-wetting and pressing (D) will not repair the damaged paper and will likely result in a rough, unstable surface.
4. How to practise against this blueprint
Our Painter and Decorator (404C) practice quiz starts with 10 interactive readiness questions with worked explanations and step-by-step trade math, and our full bank contains 1,300 questions with spaced-repetition review. The full 130-question timed mock exam is calibrated to the exact MWA split above so your diagnostic report shows which activity is costing you marks.
Next step for your Painter and Decorator (404C) exam
Test your current readiness across all 6 Major Work Activities right now.
Painter and Decorator (404C) 10-question readiness quiz · Full 130-question timed mock exam
🎧 Watch & Listen: 30 Painter and Decorator (404C) Practice Questions & Worked Answers
Weighted to the official Red Seal Painter and Decorator (404C) exam breakdown, read aloud with a 5-second pause before each worked answer and code explanation.
Take the Painter and Decorator (404C) Exam Simulation
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Is Painter and Decorator (404C) certification required where you work? Check the rules for British Columbia, Ontario or Alberta.