Question 3
(a) List three methods of transporting fresh concrete from the ground to an upper floor.
(b) Sketch a straight flight timber stair and label the following parts:
(i) string;
(ii) newel post;
(iii) riser;
(iv) baluster.
(c) List three materials used for the construction of a window sill.
Observation
Majority of the candidates were able to:
- list three methods of transporting fresh concrete from the ground to an upper floor;
- List three materials used for the construction of a window sill.
However, many of them failed to sketch a straight flight timber stair and label the following parts:
- string;
- newel post;
- riser;
- baluster.
The expected response to question 3 is as given below:
(a) Methods of Transporting Freshly Mixed Concrete from Ground to Upper floor level
The freshly mixed concrete can be transported by using
- Conveyor belt
- Pump machine and pipe-line
- Tower crane
- Barrow hoist
- Carrying with headpan
- Gin wheel
(b) A Sketch of a Straight Flight Timber Staircase and labelling of String, Newel post, Riser and Baluster
(c) Materials for Window sill
- Wood
- Plastic
- Metal
- Clay tiles
- Bricks
- Concrete
- Stone