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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?
Close picked and fine tooling
Reticulated finish
Boasted or droved finish
Punched dressing
Punched dressing
Punched dressing is a specialized stone surface finish where the face is worked with a punch to create regular or irregular depressions. In the specific variation described, the stone is processed to include grooves roughly 1 cm wide using a hollow semi-circular chisel, resulting in a decorative and textured appearance.
Punched dressing is a specialized stone surface finish where the face is worked with a punch to create regular or irregular depressions. In the specific variation described, the stone is processed to include grooves roughly 1 cm wide using a hollow semi-circular chisel, resulting in a decorative and textured appearance.
The process involves the manual or pneumatic application of a concave (hollow) chisel perpendicular or at a slight angle to the stone surface. By striking the chisel repeatedly, the operator removes material in a controlled pattern, creating the characteristic rhythmic grooves that define this dressing style.
Punched dressing creates a rough, decorative surface finish.
The use of hollow semi-circular tools allows for geometric pattern repetition.
This technique is generally used for ashlar masonry to provide texture and visual interest.
It is labour-intensive compared to machine sawing or simple tooling.
Provides high aesthetic value for exterior cladding.
Hides minor surface irregularities and tool marks from previous stages.
High cost due to the requirement for skilled stone masonry labor.
Reduces the effective thickness of the stone block.
Architectural stone facade features.
Plinth courses and decorative wall panels.
Close picked and fine tooling involves smaller, denser indentations.
Reticulated finish resembles a net-like structure created by sinking margins.
Boasted finish uses a flat chisel to create parallel grooves across the entire surface.
The description provided in the question is characteristic of decorative punched work.
D is correct тАФ Punched dressing involves creating specific textural patterns or grooves on a stone surface using specialized chisel heads.
For competitive exams, memorize the specific chisel shapes associated with finishes: 'Boasted' uses a wide flat chisel for parallel grooves, while 'Punched' involves varying tool shapes to create distinct depressions.
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