Workshop Technology
Scribing block is used to

Check the trueness of flat surfaces
Locate the centres of round bars
Check the surface roughness
Hold the round bars during marking

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Swab is used for

Reinforcement of sand in the top part of the moulding box
Cleaning the moulding sand
Moistening the sand around the edge before removing pattern
Smoothing and cleaning out depressions in the mould

ANSWER DOWNLOAD EXAMIANS APP