Question 1
- List three sources of hazards in a Radio, Television and Electronic Works (RTV) workshop.
- Table 1 presents some conditions in an RTV workshop. Study the table and complete it by sketching the safety signs that should be placed near each condition and the colour with which each sign should be designed.
Table 1
S/N |
Condition in workshop |
Safety sign |
Background colour |
(i) |
Opened-back CRT television with undischarged capacitors. |
|
|
(ii) |
Gallons of petrol reserved to fuel generator. |
|
|
(iii) |
Box containing medicines and materials such as iodine and cotton wool. |
|
|
(iv) |
Alternative door to be used in case of an emergency. |
|
|
(v) |
Gangway with less friction and shiny surface. |
|
|
Observation
The expected responses were:
(a) Sources of Hazards in a Radio, Television and Electronic Works workshop
- Wet floor
- Wrong handling of tools
- Improper dressing
- Horseplay
- Poor lighting
- Poor ventilation
- Top heavy shelving
- Not putting machine OFF after use
- Lack of team work or fighting in workshop
- Working around naked wires
- Non adherence to safety signs and codes
- No provision of safety guards or signs
- Lack of knowledge or poor supervision
- Lack of concentration
- Eating while working.
(b) Conditions in an RTV workshop and appropriate safety signs with their background colours
S/N |
Condition in workshop |
Safety sign |
Background colour |
(i) |
Opened-back CRT television with undischarged capacitors. |
|
Yellow or Red |
(ii) |
Gallons of petrol reserved to fuel generator. |
|
Yellow or Red or White |
(iii) |
Box containing medicines and materials such as iodine and cotton wool. |
|
Green or white or Red |
(iv) |
Alternative door to be used in case of an emergency. |
|
Green or White |
(v) |
Gangway with less friction and shiny surface. |
|
Yellow |
As reported by the Chief Examiner, candidates that attempted this question did fairly well.