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.