Observation

 

Most candidates were able to:

-           State three factors to be considered when selecting a floor finish.

-           describe how each of the following materials are stored on a building site:

(i)  bagged cement;
(ii) steel bars.  
However, majority of the candidates were not able to list three points in a drainage
system where inspection chambers must be provided.
The expected response to question 5 is as given below:

5(a)     State three factors to be considered when selecting a floor finish:

(i) Durability of the materials

(ii) Surface nature of the material

(iii) Method of jointing or fixing

(iv)  Aesthetic appearance of the material

(v)  Ability to withstand indentation

(vi)  Cost of the material

(vii)  Ease of cleaning

(viii)  Its resistance to noise

(ix)  Its resistance to thermal transmission     

 

     

(b)   Three points in a drainage system where inspection chambers must be provided;

(i)  Where there is change of direction

(ii)  Where different branch drains meet

(iii)  Where there is change of gradient

(iv)  At the highest point of any private server.

 

 (c)      Description of how each of the following materials are stored on a building site:

(i)  Bagged cement: 

- Where the cement is stored in the open it must be stacked on a
raised platform and covered with polythene sheet or a plastic sheet or tarpaulin.

 - When stored in a shed it must be stalked on a raised platform off the walls of the
shed in a way which will allow batch received first to be used first.
(ii)  Steel bars: 

   They must be placed on raised timber plat form or pallets to prevent them from   
direct contact with the ground.  They must be placed in their various sizes for ease 
of selection.  They must be covered with plastic sheeting where there is no shed.