waecE-LEARNING
GSM Phone Maintenance & Repair Paper 2, May/June 2014  
Questions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14   Main
General Comments
Weakness/Remedies
Strength



















Question 12
QUESTION 12

(a) State the use of each of the following tools in a phone workshop
(i) tweezers;
(ii) soldering iron;
                                    (iii)ultrasonic electronic cleaner

                        (b) List three safety measures that must be taken while working in a mobile phone workshop.

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OBSERVATION

The use of tweezers was still a mirage to some candidates.  However, most candidates      performed very well in this question.  Safety measures posed no problem to the   candidates to tackle.

            The expected answers are:
                        (a)        Tools
                                    Tweezers         -           to pick tiny objects/screws in difficulty corners that hand                                                                   cannot pick.   OR    to dismantle phones.
                                    Soldering Iron  -          to remove/fix electronic component(s) to/form a board.
                                    Ultrasonic Electronic Cleaners  -  to wash/clean PCB.
                        (b)        Safety Measures
                                                e.g.      -           Do not touch any naked wire with bare/wet hand
                                                -    Put off all electrical appliances while closing for the day’s                                                                work
                                                -           Do not cut any wire or lead with your teeth
                                                -           Do not plug your rework station while not using it.
                                                -           Do not pour fuel (petrol) into a functioning power generator

                                                -           Do not place fuel (petrol) near the rework station 
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