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OHS711S - OCCUPATIONAL HEALTH AND SAFETY 3 - 2ND OPP - JULY 2022 |
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NAMIBIA UNIVERSITY OF SCIENCE AND TECHNOLOGY
FACULTY OF HEALTH, APPLIED SCIENCES and NATURAL RESOURCES
DEPARTMENT OF HEALTH SCIENCES
QUALIFICATION : BACHELOR OF ENVIRONMENTAL HEALTH SCIENCES
QUALIFICATION CODE: 08 BOHS
COURSE NAME: OCCUPATIONAL HEALTH AND SAFETY3
LEVEL: 7
COURSE CODE: OHS 7115
DATE: July 2022
SESSION: 2nd Opportunity
DURATION: 3 HOURS
MARKS: 100
SUPPLEMENTARY/SECOND OPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER
MRS MOUYELELE HAUFIKU
MODERATOR: PROF OMOTAYO AWOFOLU
INSTRUCTIONS
1. Read all the questions carefully before answering
2. Marks for each question are indicated at the end of each question
3. Number the answers clearly.
4. Please ensure that your writing is legible, neat and presentable
PERMISSIBLE MATERIAL: NONE
THIS QUESTION PAPER CONSISTS OF 4 PAGES
(Including this front page)
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SECTION A [20 marks]
QUESTION 1
1.0 Match a statement in Column A to their most correct definition or description in Column
B. Write on your answer sheet the correct column A number with a correct column B
Letter. 1 mark each
[10]
No COLUMNA
2.1 Nephrotoxicity
2.2 Emergency
2.3 Teratogen icity
2.4 Epidemiological Theory
2.5 Insulators
2.6 Trench
2.7 Risk
2.8 An incident
2.9 Accident Theory
2.10 Excavation
COLUMNB
A. Electrons do not move through them very well.
B. It is classified as a near miss or an undesired
circumstance.
C. Likelihood of that substance; activity or process to
cause harm.
D. The depth is greater than the width, but not wider
than 4.5m.
E. Chemical effects to the kidneys.
F. Used to study causal relationships between
environmental factors and disease.
G. Ergonomic Traps is an example of this theory.
H. a man-made cut, cavity, trench, or depression
formed by earth removal.
I. Chemical effects to the embryos.
J. a serious, unexpected and often dangerous situation
requiring immediate action.
QUESTION 2
2.0 Define the following terms in the context of Occupational Health and Safe.
2.1 Dose-response relationship
2.2 Safety audit
2.3 Fire point
2.4 Convection
2.5 Toxicology
[10]
[2]
[2]
[2]
[2]
[2]
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SECTION B [20 marks]
QUESTION 3
3.0 Differentiate between the following terms:
3.1 Distribution and biotransformation process in Toxicokinetics.
3.2 Local and systemic effects with examples.
3.3 Asphyxiation and corrosivity.
3.4 Personal Fall Arrest Systems (PFAS}and Guardrails as fall protection measures.
QUESTION 4
4.1 State the two (2) purposes of conducting Occupational Health and Safety audits.
4.2 List any five (5) characteristics of a checklist.
4.3 Outline any three (3) common causes of fire in electrical installations.
[10]
[2]
[4]
[2]
[2]
[10]
[2]
[5]
[3]
SECTION C [60 marks]
This section consists of FOURquestions. Answer any THREEquestions in your answer book.
QUESTION 5
5.1 State the purposes of accident investigations.
[20]
[5]
5.2 Name and explain the steps one needs to follow when conducting an accident
investigation.
[15]
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QUESTION 6
6.0 Planning for emergencies like any other management function must be a priority and
done in advance. Only in this way potential harm to people and property is minimized.
6.1 Outline the steps to come up with an emergency preparedness plan.
6.2 State any six (6) components and specific areas of concerns for an
emergency preparedness plan.
6.2 Briefly explain the importance of Drills in preparation for emergencies.
[20]
[7]
[6]
[7]
QUESTION 7
7.0 State the hazards associated with Scaffolds at construction sites.
7.1 Outline the safety requirements for roof work.
7.2 Illustrate the factors to be considered when using ladders at construction sites.
[20]
[5]
[S]
[10]
QUESTION 8
8.0 First Aid is the initial assistance or treatment that is given to a casualty for an injury or
sudden illness. Describe First Aid, under the following headings:
[20]
8.1 Three (3) principles of First Aid.
[3]
8.2 Sequence the First Aider follows before giving first aid/CPR.
[7]
8.3 Roles and responsibilities of a First Aider and their legal responsibilities.
[10]
TOTAL MARKS = 100
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