Some of them did well by:
-           producing the sketches of each type of doors and windows correctly;
-           providing a correct description of the doors and windows correctly;
-           indicating the sizes of the doors and windows.

Many of the candidates that attempted this questions failed to:
-           prepare the schedule by using the conventional format;
-           produce the doors and windows sketches to scale 1:25 specified;
-           indicate the quantity of each door and window type required for the building.ground.

The expected response to question 4 is as given below: