Building Construction Paper 1, May/June. 2012

Questions:	1	2	3	4	5	Main

General Comments
Strength
Weakness/Remedies

Question 3

State the function of a staircase.
Sketch a section through a three step timber staircase and label the following:

(i)	string;
(ii)	tread;
(iii)	riser;
(iv)	nosing.

State three functions of a window.

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Observation

Most candidates who attempted the question were able to:
state the function of a staircase; sketch the section through timber staircase; state the function of a window.
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However, majority of them:
sketched five or six steps timber staircase instead of thnee steps; could not label the given parts.
The expected response to question 3 is as given below:

(a) Staircase consists of a series of steps for accessing the upper floors in a

Text Box: Timber stair construction showing three steps building. OR it is a series of steps for ascending and descending the upper floors of a building.
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j-Jtr i*-.*1
i

Function of a window are:

(i)	For viewing outside.
(ii)	To provide privacy.
(iii)	To resist weather.
(iv)	To prevent unwanted guest.
(v)	For aesthetic purposes.
(Vi)	For ventilation and day light.

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