Question 2
ITEM D
ITEM E
a) Identify the items D and E shown above.
b) State the importance of D and E in a mobile phone workshop.
c) State the class of mobile phone equipment to which D and E belong.
d) State two safety precautions required in a mobile phone workshop
ITEM F ITEM G
e) Identify items F and G.
f) State two:
(i) similarities:
(ii) differences,
between the items.
g) Which of the items is classified as universal? Give a reason for your answer.
h) State two precautions to be taken while handling item G.
The performance of candidates who attempted this question was poor. This is still as a result of lack of adequate exposure of candidates to the practical aspect of the subject.
Observation
The expected answers are:
a. Item D = Electrostatic Wrist Strap Item E =Fire Extinguisher
b. Importance of D and E Importance of D: To prevent electric shock Importance of E: To put off any fire outbreak
c. Safety Equipment
d. Precautions
Any correct 2
- wearing of electrostatic wrist strap
- provision of fire extinguisher
- not to handle electrical appliances with wet hands
- not to test charger / battery with your tongue
- not to use teeth to cut electric wires
- not to feel the hotness of soldering iron with bare hand / body parts
- avoid working with naked wire
- do not short-circuit electrical wires
e. Item F = Handsfree / Earphone
Item G = (External) Bluetooth
f. (i) Similarities
Any correct 2
- Both are handsfree devices
- While in use, both make contact with the ear
- Both can be automatically activated by incoming calls if the mode is activated.
- Both are used for telephone conversation.
(ii) Differences
Any correct 2 pair
External Bluetooth |
Handsfree |
Wireless device |
Wire connected device |
Powered by battery |
Does not require battery |
setting with phone is required before functioning |
Plug in and use directly |
g. The Bluetooth / Item G Reason It works with any phone that has Bluetooth facility
h. Precautions
Any correct 2 Avoid
- Contact with heat
- Contact with fluid
- falling / breakage of plastic covering
- stretching of wire to prevent discontinuity