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OHS612S - OCCUPATIONAL HEALTH AND SAFETY 2B - 1ST OPP - NOV 2022 |
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NAMIBIA UNIVERSITYOF SCIENCEAND TECHNOLOGY
FACULTYOF HEALTH,APPLIEDSCIENCESand NATURALRESOURCES
DEPARTMENTOF HEALTHSCIENCES
QUALIFICATION: BACHELOR OF ENVIRONMENTAL HEALTH SCIENCES
QUALIFICATION CODE: 08 BOHS
LEVEL: 6
COURSENAME: OCCUPATIONAL HEALTH AND SAFETY 2B
DATE: NOVEMBER 2022
COURSECODE: OHS612S
SESSION: 15T Opportunity
DURATION: 3 HOURS
MARKS: 100
EXAMINER
FIRSTOPPORTUNITY EXAMINATION QUESTION PAPER
MRS MOUYELELEHAUFIKU
MODERATOR: MR IMMANUEL ZERIAPI
INSTRUCTIONS
1. Read all the questions carefully before answering.
2. Answer the questions.
3. Marks for each question are indicated at the end of each question.
4. Number the answers clearly.
5. Please ensure that your writing is legible, neat and presentable.
PERMISSIBLEMATERIAL: NONE
THIS QUESTION PAPERCONSISTSOF 5 PAGES
(Including this front page}
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SECTION A [20 MARKS]
QUESTION 1
1.0 Define the following terms/concepts in the context of Occupational Health and Safety.
1.1 Hazard
1.2 Risk
1.3 Risk assessment
1.4 Risk evaluation
1.5 Hazard elimination
1.6 Administrative control
1.7 Mutagens
1.8 Local effect
1.9 Biological hazards
1.10 Zoonosis
[10]
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QUESTION 2
[10]
2.0 Choose the correct answer from the alternatives given; write the question number and the
correct letter representing your answer.
2.1 Death of the liver cell is called.
[1]
a) Cirrhosis
b) Hepatic necrosis
c) Liver cancer
d) Nephrotoxic
2.2 Chemicals that cause damage to the kidneys are called.
[1]
a) Cirrhosis
b) Hepatic necrosis
c) Liver cancer
d) Nephrotoxins
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2.3 Chemical substances which can depress the central nervous system are called.
[1]
a) Asphyxiants and narcotics
b) Irritants
c) Anesthetics
d) Carcinogens
2.4 Chemicals that cause abnormalities in the unborn baby are called.
[1]
a) Mutagens
b) Carcinogens
c) Teratogens
d) Systematic poison
2.5 These chemicals effects are usually permanent and may take years to show up.
[1]
a) Chronic
b) Acute
c) Local
d) Systemic effect
2.6 The following respiratory condition causes damage to the blood capillaries in the lungs
causing fluid to leak into the surrounding tissues causing swelling.
[1]
a) Broncho constriction
b) Airway odema
c) Pneumonia
d) Pneumoconiosis
2.7 Disease of vertebrate animals chiefly transmissible to humans is called.
[1]
a) Zoonosis
b) Anthropozoonois
c) Zooanthroponosis
d) Zooanthros
2.8 Diseaseof humans transmissible to other animals (Anthropozooonois).
[1]
e) Zoonosis
f) Anthropozoonois
g) Zooanthroponosis
h) Zooanthros
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2.9 An example of a safety hazard.
[1]
a) Radiation
b) Rabies virus
c) Trauma
d) Stacked material
2.10 This has to do with muscles, lever, force and strength.
[1]
a) Anthropometry
b) Biomechanics
c) Applied psychology
d) Social psychology
SECTION B [20 MARKS]
QUESTION 3
3.1 Interpret the following abbreviations in the context of Occupational Health and Safety in
measuring chemical hazards.
[20]
[5]
3.1.1 TLV
3.1.2 TWA
3.1.3 STEL
3.1.4 EELs
3.1.5 MAC
3.2 There are several measures and strategies designed to prevent, control, reduce or
eliminate the occupational hazards and risks yet accidents are still too frequent.
Outline any five (5) reasons why accidents still happen in the workplaces.
[5]
3.3 List any 5(five) OHS Related Legislation in Namibia.
[5]
3.4 Explain why risk assessment is important.
[5]
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SECTION C [60 MARKS]
QUESTION 4
4.1 Name and explain the three (3) main "routes of exposure," or ways a chemical can get
into the body.
4.2 State any six (6) objectives of ventilation.
4.3 Outline any eight (8) safe disposal measures of Mercury on Spillage.
[20]
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QUESTION 5
5.1 Justify why it is important to have a hazard communication standard in a workplace.
5.2 Name and explain the 16 headings of the Safety Data Sheet.
[20]
[4]
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QUESTION 6
6.1 Workplaces should establish an ergonomics program to minimize musculoskeletal
disorders. Outline the elements of a good ergonomic program.
6.2 Discuss SMART lifting of loads technique.
[20]
[10]
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TOTAL MARKS= 100
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