Some candidates were able to:
-     List three methods of a electrical wiring in a domestic building:
-    List two materials suitable for finishing the floor of a kitchen in a domestic building

However, most of them failed to:

            -     List four types of test that are carried out on a drainline.
-    State the function of each of the following roof members:

• rafter;
• wall plate
• ridge board.

           
The expected response to question 4 (a) and (c) is as given below:

(a)        Types of Test Carried out on drain line

• Smoke test
• Ball test
• Mirror/torch test
• Air test
• water/hydraulic test

(c )       Function of the following Roof Members:

• Rafter: 
• to set the slope of the roof;
• it receives the fascia board;
• to support the purlin.3
• Wall Plate:
• provides a fixing for the trusses;
• it distributes the load of roof evenly on the walls;
• it provides a uniform level on which the tie beams are fixed;

• Ridge board:

vertical board through which rafters are nailed.