Question 2
(a) List three methods of setting-out the right angle corner of a building.
(b) Sketch each of the following types of bricks:
(i) king closer;
(ii) half bat.
(c) State three uses of a builder’s square.
Observation
Most candidates were able to sketching closer and half bat;
However, some of them were unable to:
- List three methods of setting-out the right angle corner of a building;
- state three uses of a builder’s square.
The expected response to question 2 is as given below:
2 (a)Methods of setting-out the right angle corner of a building:
- 3:4:5 method;
- Builder’s square/steel square method;
- Levelling instrument method such as theodolite, dumpy level, optical square etc.
- Use of site square.
(b) Sketches of the following types of bricks:
- king closer
- half bat
(c) Uses of builder’s square:
- setting out right angles or corners of buildings;
- checking the squareness of a wall construction;
- squaring brick or blocks before cutting;
- measuring brick/blocks.