DETAILED COMMENTS ON EACH QUESTION
SPECIFICATIONS
FOUNDATION: 450 x 150 concrete strip laid at a depth of 900
below ground level.
FLOOR: Earth filling.
Hardcore 300.
Concrete slab 150.
Mortar screed 25.
WALLS: All walls are 150sandcrete hollow blocks walls with 12mm mortar
Rendering on both sides.
BEAMS/LINTELS
AND COLUMNS: 150 x 225 reinforced concrete.
ARCHES: All arches are semi-circular reinforced concrete type.
DOORS: D1 – 1200 x 2100 two panelled wooden door with 150 x150
hardwood timber frame.
D2 – 900 x 2100 panlled wooden door with 150 x 150 hardwood timber frame.
D3 – 750 x 2100 two panelled wooden door with 150 x 150 hardwood timber frame.
WINDOWS: All windows are glazedmetal casement type.
W1 – 1500 x 1800 .
W2– 1200 x 1800.
W3 – 600 x 600.
THRESHOLD STEPS: Width – 6000.
Tread – 300
Rise –150.
ROOF: Double pitched roof with corrugated aluminium sheets.
Pitch: =150
Eaves projection – 750;
Height from ground floor to ceiling - 3000
Question 1
To a scale of 1:50, draw the detailed section B – B of the building from the foundation to the
roof.
A good number of candidates did well by showing:
- grapically, the solid ground floor elements ( i.e earth filling, hardcore filling, concrete floor slab and mortar screed finish ) with conventional symbols;
- in details, the timber roof truss members and labelling the key parts properly.
Observation
Hower, it was observed that some of the candidates failed to:
- present the appropriate roof view;
- show the correct type of doors in elevation;
. hatch the walls drawn in section.
The expected response to question 1 is as given below: