In which type of dressing of stone are about 1 cm vertical or horizontal grooves sunk with a chisel having its shape as a hollow semi-circle?
- APunched dressingCorrect
- BClose picked and fine tooling
- CBoasted or droved finish
- DReticulated finish
Solution
Concept
In punched dressing, grooves of about 1 cm are sunk vertically or horizontally using a chisel with a hollow semicircular edge.
Step-by-step solution
1. Recall the main types of stone dressing. 2. Boasted or droved: parallel marks made with a boaster chisel about 4-5 cm wide. 3. Close picked or fine tooling: a fine, nearly smooth surface made with a pick or fine chisel. 4. Reticulated: an irregular net-like pattern of sunk areas with raised margins. 5. Punched dressing: about 1 cm grooves made with a chisel shaped like a hollow semicircle. So the answer is A.
Explanation
Punched dressing gives the stone a grooved surface. Grooves about 1 cm wide are sunk vertically or horizontally with a chisel whose edge is a hollow semicircle. The other dressings produce different surface patterns.
Why the other options are wrong
B gives a fine, almost smooth surface. C gives parallel chisel lines made with a wide boaster. D gives an irregular net-like pattern.
Shortcut
Hollow semicircular chisel with about 1 cm grooves = punched dressing.
Common mistake
Confusing punched dressing with boasted (droved) finish, because both leave line marks.
Correct answer: A) Punched dressing