Carpentry And Joinery (Paper 3) WASSCE (SC), 2018

Question 1

 

  1. Produce the test piece shown below, using timber which has been planed to the following sizes:

Two pieces       -          30 x 55 x 240} hardwood
Two pieces      -           30 x 55 x 230}hardwood

 

PROCEDURE (STEP BY STEP)

Observation

 

STEP 1
Candidates were required to make through dovetail housing  joint for the model of a window frame. Some candidates were able to make the joint correctly. However, most of them could not make the joint correctly as required.
Each candidates workpiece was to have two trenches at the left and right sides of the head of the frame with tails at the two jambs of the frame fitted together without splitting.

 

STEP 2
Candidates were required to make through mortise and tenon joint for the model of a window frame. Most candidates were able to make the joint correctly. However, most of them could not make the joint correctly as required.
Each candidates workpiece was to have two mortises at the left and right sides of the sill of the frame with tenons at the two jambs of the frame fitted together without splitting.

STEP 3
Candidates were required to make rebate at the sill and at the head of the frame. Most candidates were able to make rebate at the sill and at the head of the frame. However few of them were unable to make it as required.
Each candidate’s workpiece should be rebated at both sill and head from end to end to give 20mm.

STEP 4
Candidates were required to assemble the workpiece correctly and clean up. Most candidates were able to assemble their final workpiece correctly. However few of them were unable to assemble their final workpiece correctly.
Each candidates final workpieces must be well assembled and give a smooth surface.