Question 3
- State two methods of transporting freshly mixed concrete on site
- Sketch a cross-section through a mass concrete retaining wall, with a battered face and label the weep hole
- State one purpose of each of the following in relation to stair construction.
- headroom
- riser;
- thread.
Observation
Few candidates were able to:
- State two methods of transporting freshly mixed concrete on site
- State one purpose of headroom and riser in relation to stair construction
However, most of them failed to:
- Sketch a cross-section through a mass concrete retaining wall, with a battered face
and label the weep hole.
The expected response to question 3 (b) is as given below:
- Sketch of a cross section through a mass concrete retaining wall with a battered face:
