Basic Electricity 2, WASSCE (SC), 2021

Question 7

 

  1. State the possible causes of the following faults in fluorescent fitting:
    1. brightness at both ends of the tube but the lamp fails to come on;
    2. the tube keeps blinking but fails to come on.
  2. Draw and label a fluorescent fitting.

 

Observation

 

             The expected answers were;

  1. Possible causes of the following faults in fluorescent fittings
  • brightness at both ends of the tube but the lamp fails to come on
  • faulty starter                                           
  • tube keeps blinking but fails to come on
  • faulty choke                                          

 

Fluorescent fitting

Diagram  Description automatically generated

 

                                                                                                           

                    

 

 

 



 

 

Many of the candidates who attempted this question could not state the causes of the faults but some of them were able to draw and label what looks like a fluorescent fitting.