Question 7
- State four sources of information vital to good repair work on electrical
 
appliances.
- List four electrical components in a complete single circuit fluorescent
 
fitting.
- A fluorescent lamp continues to blink when switched on. State two likely causes of this problem
 
Observation
(a)       Sources of information vital to good  repair work on electrical appliances
    (i)       Name  data plate on appliances
    (ii)       Circuit  diagrams or manuals from manufacturers.
    (iii)     The user  or operator of appliance/customer’s input.
    (iv)      Workshop  test results                                                                      
    (b)       (i)        Electrical  components in a complete single circuit fluorescent fitting
    -   Choke 
    -   Starter
    -   Filament
    - Capacitor    
            (ii)       - The  tube is bad (carbon deposit on the two electrodes inside)                                                - Faulty starter
    -Low voltage        
    
    The  few candidates who attempted this question did poorly.