Observation

Some of the candidates were able to:

• State four safety precautions that should be taken in  a carpentry and joinery workshop.;
• List four safety operations that are carried out on a circular saw.

However, majority of them were unable to sketch a marking gauge correctly.

The expected response to question 6 is as given below:

(a)   Safety precautions that should be taken in a carpentry and joinery workshop:

• allow the machine to attain its maximum speed before feeding;
• make sure the machine has come to a complete stop before leaving the machine;
• make sure the bridge guard is properly fixed;
• make sure the fence is properly secured;
• the depth adjustment knob should be properly locked;
• use a tail-off person when planing long pieces;
• do not let your hand pass over the cutter;
• put off the machine before making any adjustment;
• proper safety clothing should be worn;
• do not litter waste pieces on the floor.

(b)   Operations that are carried out on a circular saw are:

• ripping;
• bevelling;
• cross-cutting;
• mitring;
• grooving;
• tenoning;
• rebating;
• chamfering.

(c)   A pictorial sketch of a marking gauge and labelling of parts: