cameroon gce A level 2024 building construction technology and practice 2
cameroon gce A level 2024 building construction technology and practice 2
SECTION A: Answer ONE Question ‘
You have been called to visit a site by a client that intends to construct a bungalow as a residential building. Upon visiting
the site, you noticed that the surface of the site has a gentle slope. The client told you that, he wanted to build an
embankment wall on the south side of the land before carrying out a cut and fill excavation so as to obtain a level surface
for the building. The embankment wall will also serve as a foundation for the building on the side.
ab)) .State Drawtwo a vertical reasons section why the through top soil theof excavation a site should process be removed described before above any , showing construction the embankment project begins wall .^ , cut, fill and
(4 marks)
– (2 marks)
(4 marks)
; – the level surface for the building.
o) Which condition necessitate the use of a deep strip foundation?
d) Propose a foundation type that is suitably used on sloppy sites in order to reduce excavation cost for lightly loaded
structures. Make a labelled sketch of the foundation
.you just proposed and indicate the minimum overlap (L),
height of foundation step (S), thickness of strip (T). Precise the condition for determining the dimensions of the
• minimum overlap (L) and foundation step (S).
e) Cite four (04) functional requirements of a foundation.
(6 marks)
(4 marks)
Total (20 marks)
Question 2:
Most city building regulations require that a plot plan or site plan be a part of the house plans, to show the location of the
building on the lot. Before the exact location of the house is determined, we must check the local codes.
| From the above answer the following questions. | • . . |
| a) We know that the location of a house is usually affected by codes. How are setbacks of a building sometimes | |
| established? | (5 marks) |
b) What are the two basic ways of accurately determining the location of the proposed building in the property?
(5 marks)
c) Explain how it is possible to locate a house ori a site without the use of either an optical level or a transit level.
You may use a sketch if you so desire.
d) At what position should profiles be placed on a site and what is the function of profiles?
Total (20 marks)
SECTION B: Answer any THREE Questions *
Question 3: ^ •
A foundation is the base on which a building rests and has as purpose to safely transfer the load of the building to a
suitable subsoil. Building regulation requires that all foundations of buildings shall:
Safely sustain and transmit to the ground the loads.
Be of such a depth or be so constructed as to avoid damage.
Be capable of resisting attacks by sulphates etc.
From the above,
a) List the type of loads transmitted to a suitable subsoil by the structure from the foundation.
b) In what way does the subsoil damages the foundation which is not deep enough?
c) State three (03) causes of differential settlement of a foundation.
d) Give four aspects that cause the failure of foundations.
e) What do you understand by bearing pressure?
