Question:
Before plastering, the surface has to be :
Before plastering, the surface has to be :
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Plaster must grip the surface, so the base should not be slippery.
Updated On: Nov 12, 2026
- Cemented
- Polished
- Smooth
- Rough
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The Correct Option is D
Solution and Explanation
Plaster adheres to a wall through mechanical bonding (key).
For this the masonry surface is roughened, for example by raking out joints and hacking, and then wetted.
A smooth or polished surface would give poor grip and the plaster would peel off.
Hence the surface has to be rough.
Answer: (4) Rough
For this the masonry surface is roughened, for example by raking out joints and hacking, and then wetted.
A smooth or polished surface would give poor grip and the plaster would peel off.
Hence the surface has to be rough.
Answer: (4) Rough
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