Question 1
Before painting a newly plastered interior wall, why must the plaster be allowed to cure and dry thoroughly before applying a film-forming coating?
Correct Answer:
Because residual moisture and free alkali can cause efflorescence, blistering and saponification of the coating
Question 2
What is the main purpose of an alkali-resisting primer (plaster primer) on new masonry and cement plaster?
Correct Answer:
To seal the porous surface and neutralise/resist alkali attack so the topcoat adheres
Question 3
When preparing new galvanised (zinc-coated) iron sheeting for painting, what treatment is needed to ensure paint adhesion?
Correct Answer:
Degrease and apply an etch (mordant/wash) primer or a dedicated galvanised-iron primer
Question 4
What is the correct first coat (primer) for bare structural mild steel exposed to a normal atmosphere?
Correct Answer:
An anti-corrosive metal primer such as a zinc phosphate or red oxide primer
Question 5
Why are knots in new softwood sealed with a knotting solution (shellac knotting) before priming?
Correct Answer:
To seal in resin/sap that would otherwise bleed through and discolour the paint film
Question 1
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About this Exam

Prepare with the Painter Trade Test Practice Questions - South Africa Artisan Trade Test - Painter Exam practice quiz. This question bank includes 100 questions covering paint, wall, painting, caused, and coat. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Painter Trade Test Practice Questions - South Africa Artisan Trade Test - Painter Exam

This practice set contains 100 questions from the matching question bank and focuses on paint, wall, painting, caused, and coat. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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