Auto body repair & Spray painting Paper 2 WASSCE (SC), 2023

Question 3

 

  (a)              Name two fuels each for the following classes of fire:

(i)        Class A fire;          (ii)        Class B fire;    (iii)       Class C fire.  

 

(b)      Name one suitable extinguisher for:
(i)   Class A fire;    (ii)        Class B fire;    (iii)       Class C fire.


(c)       Explain how wrong labelling can cause accident in the workshop.

Observation

  1.  

Candidates did not perform well in parts (a) and (b) of this question. The correct responses to the poorly answered parts of the question is given below

(a)        (i)        Fuels for Class A fire
-           paper
-         cloth
-         wood
-         cotton

 

 

 (ii)        Fuels for Class B fire
-         petrol
-         kerosene
-         spirit
-         cellulose
-         turpentine
-         LPG gases

 

(iii)       Fuels for Class C fire
-         electrical wire or cables
-         electrical appliance
-         welding gases
-         thunder lightning

 


(b) (i)  Extinguisher for Class A fire
-              water
-              foam spray
-              wet chemical
-           wet fire blanket

(ii)       Extinguisher for Class B fire
-          foam spray
-          fire powder
-          CO2

(iii)      Extinguisher for Class C fire
-         sand
-         BCF powder
-         C02