Most candidates were able to:

-           state the functions of a door;
-           sketch the elevation of a two-panel door;
-           explain what is meant by rise in relation to stair construction.

However, some candidates drew four panels instead of two panels stated in the question.

The expected response to question 4 is given below:

• Functions of a door

A door –

• provides means of access to the spaces or rooms in a building;
• accords privacy to the occupants of a building;
• provides security to occupants and their properties;
• excludes or protects the occupants of a building from wind or driving rain.

(b)

(c)        (i)         Headroom is the clear space of about 2 metres measured
vertically from the line of nosings of a stair to the soffit of another stair, landing or floor above it.

(ii)        Flight of steps consist uninterrupted series of steps between two floors or between a floor and a landing or between two landings.

(iii)       Rise is the vertical distance between two successive treads.