Observation

This question was very clear and precise. Some candidates’ answered question 1 (a) correctly while, others out of point. In 1(b) the candidates’ failed to emphasize the use of terms like: identification; decoration; sanitation and economic value. Candidates were expected to provide the following answers to the question: 
  
(a)        -     emulsion is a stable combination of two liquids which normally will   not mix together except with the aid of an emulsifying agent.

• It is a water based paint which dries by evaporation/coalescence when applied on to a surface.
• It is a water based paint which can be applied on a suitable surface.

(b)        -           Decoration
-           Preservation
-           Sanitation
-           Economic value/value enhancement
-           Identification

(c)       

(i)         it is the flowing or dripping of paint from upper vertical surface to the
lower part forming a tear- like or wavy appearance.

•       It is a stream of flowing paint on a vertical surface.

                                   
(ii)
-           Application/painting of excessively thick coat.
-           Application/painting of excessive diluted/ too thinned paint.
-           Unevenly distribution of paint on a surface.
-           Accumulation of excess paint on irregular surfaces
.          

(iii)      

• Allow paint film to dry
• Abrade the paint film
• Remove/clean the surface with appropriate tool
• Re-apply paint skilfully
• Mix paints to a suitable consistency/thickness