Observation

A good number of candidates were able to:

-           illustrate with sketches a suitable profile for setting out a square pillar;
-           explain correctly the use of the earth moving equipments.

However, many of them failed to:

-           state the duty of clerk of works and general foreman on a construction site.
The expected response to question 2 is as given below:
2 (a)     One duty of each of the following personnel on a construction site:

           (i)   Clerk of works is responsible for:

(1)        checking stock of materials tools and equipment;
(2)       checking spot levels and (accuracy) of setting out;
(3)        testing of materials to ensure that they comply with standards approved by the architect;
(4)        report progress of work to the architect;
(5)        labour attendance records;
(6)        checking quality of materials and workmanship comply with standards.

(ii)        General Foreman:

(1)        he is responsible for the orderly progress of the site work;
(2)        he supervises the tradesmen under him;
(3)        he passes on information from the contractor to the workmen.        

(b)        (i)

 

(ii)

 

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(c)        (i)         Bulldozer:
1.         It is used for clearing trees, shrubs and weeds.

2          It is used for shallow excavations up to 300mm deep.

            3.         It is used for pushing excavated earth.         

(ii)        Scraper:
1.         Is used for cutting and removing excavated soil.
2.         It is used for site surface stripping and haulage of the loose earth to a disposal point.

(iii)       Grader:
1.         It is used to finish the upper surface of a large area. 
2.         It is used also as a follow up operation to a bulldozer or scrapper.