Observation

The expected responses are:

• (i) PICTORIAL SKETCH OF A PARTING CHISEL

USE OF A PARTING CHISEL

• To cutting narrow slot in the workpiece.
• To turn tenons or grooves to a specific diameter for reference point.
• To turn internal corners that are difficult to cut with a full round scraper.
• To mark sharp boundaries on a workpiece.

• TYPES OF SPRING USED IN UPHOLSTERY

• Coil springs
• Helical springs
• Zig-zag/ no-zag spring
• Conical spring
• Compression spring
• Tension spring
• Sinuous spring
• Sofa spring
• Pirelli spring   
• Centre ring spring
• Centre plate spring
• Marshall spring
• Drop in coil spring
• Serpentine spring