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AMC520S - AGRICULTURAL MECHANISATION - 1ST OPP - JUNE 2024 |
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nAm I 8 IA un IVERSITY
OF SCIEn CE Ano TECHn OLOGY
FACULTYOF HEALTH,NATURAL RESOURCESAND APPLIEDSCIENCES
DEPARTMENT OF AGRICULTURALSCIENCESAND AGRIBUSINESS
QUALIFICATION: BACHELOR OF SCIENCE IN AGRICULTURE
QUALIFICATION CODE: 07BAGA
LEVEL: 7
COURSE CODE: AMC520S
COURSE NAME: AGRICULTURALMECHANISATION
SESSION: JUNE 2024
DURATION: 3 HOURS
PAPER: 1
MARKS: 100
EXAMINER(S)
FIRST OPPORTUNITY EXAMINATION QUESTION PAPER
MR HELMUTH TJIKURUNDA
MODERATOR: MR JEREMIA AMUTENYA
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLEMATERIALS
1. Examination question paper
2. Answering book
THIS QUESTION PAPER CONSISTS OF 5 PAGE (Including this front page)
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SECTION A: TRUE OR FALSEQUESTIONS
QUESTION 1
State whether the following statements is True or False. Only write the number and True or False for
each statement.
[10]
1.1. Hazard identification is the process of controlling the potential risks at the workplace.
1.2. Solar energy is produced by making use of other means than fossil fuels.
1.3. It is not necessary to check engine oil and coolant levels on a newly purchased vehicle.
1.4. To ensure that the fan for the cooling system is functioning properly, a loose fan belt must be
replaced as soon as possible.
1.5. It is important to ensure that local conservation authorities and other relevant officials are
consulted before any fences are erected.
1.6. To ensure that an appropriate fencing infrastructure is erected for a successful farming
operation, it is important to consider the weather conditions of the area.
1.7. To check and refill your vehicle's engine oil, it is important to check the coolant and make sure
it is diluted to 50/50 water and anti-freeze.
1.8. In water infrastructure supply, the choice of pump driver to be purchased depends on the
type of animal kept on a ranch/park.
1.9. It is the legal responsibility of employers to ensure the safety of workers at the workplace.
1.10. To control excessive bleeding from a victim of a motor vehicle accident, administer a
cardiopulmonary resuscitation {CPR).
QUESTION 2
B: MULTIPLE CHOICE QUESTIONS
Choose the correct answer. Only write the number and the letter corresponding to the correct
answer.
[10]
2.1. Which one is NOT applicable for good maintenance practice?
a) To intervene after a failure occurs.
b) To do maintenance only when necessary.
c) To reduce the number of failures and shutdowns.
d) To reduce maintenance cost and cost due to production loss.
2.2. The following are methods of how hazards enter our bodies except one, which ONE?
a) Inhalation
b) Digestion
c) Absorption
d) Injection
2.3. You can extend the life of your vehicle by making use of the following tips, except one, which
ONE?
a) Check engine oil at every other fill-up.
b) Change the oil frequently.
c) Mix coolants.
d) Avoid hose hassles.
2.4.Which ONE is NOT an advantage of an electrified fence?
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a) It is expensive when considering its effectiveness and high maintenance cost.
b) It controls most types of animals effectively.
I-
c) It can be constructed with low labour input.
d) It requires low maintenance, provided that the fence is correctly planned and erected.
2.5. The following are general requirements for an effective electrified fence EXCEPT one. Which
ONE?
a) The fence should be planned and designed for specific types of animals to be controlled,
therefore the power of the energizer and the placement of the wire strands and other posts
should be suitable for the intended animal.
b) It should be as low a cost as possible by using poor-quality materials.
c) Should be neat and permanent and of low maintenance.
d) Should be safe from contact with humans.
2.6.Which ONE is NOT true for concrete aggregates?
a) Strong and hard to give a strong final concrete.
b) Durable to stand up to wear and tear and weathering.
c) Chemically active so that it reacts with cement.
d) Clean, since dirt or clay sticking to the aggregates will weaken the bond between paste
and aggregates.
2.7. Which ONE is NOT a common type of workplace hazard?
a) Transportation and vehicle-related accidents
b) Enclosed spaces
c) Gender-based violence
d) None of the above
2.8. Which ONE is NOT a method to treat snake bites?
a) Reassure the patient and keep calm
b) Wipe venom from the wound
c) Apply tourniquet
d) Immobilise limb
2.9. Which ONE is NOT an advantage of solar energy?
a) Solar energy is a truly renewable energy source.
b) It can be harnessed only in some areas of the world and is not available every day.
c) We cannot run out of solar energy, unlike some of the other sources of energy.
d) Solar energy will be accessible as long as we have the sun.
2.10. Which ONE is an essential element of farm water planning?
a) Understanding total farm water requirements.
b) Assessing the reliability of water sources.
c) Establishing the sizes of storages (dams or tanks) needed.
d) All of the above.
SUBTOTAL: 20
QUESTION 3
3.1. Name and explain the 2 main categories of hazards that could occur at a workplace and give an
appropriate and relevant example for each.
(6)
3.2. Excessiveblood loss from an open wound due to injuries sustained at work may lead to a fatality.
Explain how you would control excessive loss of blood from open wounds by applying the direct
pressure method.
(4)
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[10]
QUESTION 4
4.1. Name four ways in which health hazards enter and affect our bodies.
(4)
4.2. Write brief notes to explain how you will check and re-fill a vehicle's engine oil.
(6)
[10]
QUESTION 5
5.1. Commercial farming, especially livestock farming requires good fencing infrastructures. Provide
8 requirements of a good fence for productive farming.
(15)
5.2. In a table format, provide the advantages and disadvantages of wooden post fence and iron post
fence.
(12+2=6)
[21]
QUESTION 6
6.l. What are the 3 specific factors that will determine the type of pump driver to choose for farm
water supply (as discussed in class)?
(3)
6.2. Provide 6 principles of good maintenance practice for farm tools and implements.
(6)
[9]
QUESTION 7
7.1. Briefly explain what alternative energy is.
(3)
7.2. Discusssolar as an alternative source of energy in terms of the following.
a) How it is generated
(2)
b) Its applications
(3)
7.3. Discussthe following disadvantage of wind power in (details).
The Wind Fluctuates
(4)
[12]
QUESTION 8
Redraw the table below and complete it by filling in the missing sentences 1 to 6, explaining the
causes and remedial actions for the following welding defect:
(6)
Incomplete penetration
CAUSES
REMEDY
1.
Increase current
Electrode too large for the joint
2.
Insufficient gab
3
4.
Too inclined, does not give penetration, keep
nearer to correct angle
5.
Use the correct build-up sequence
Speed of travel too fast
6.
[6]
QUESTION 9
9.1. Explain the curing of concrete with regards to the following.
a) What is curing?
(2)
b) When to cure?
(1)
c) Why cure?
(3)
d) How to cure?
(2)
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9.2. Provide an appropriate term/word/phrase for the following:
(4)
a) How easy it is to place, handle, compact and finish the concrete.
b) Concrete is a mixture of cement, water, coarse and fine aggregates and (possibly) admixtures.
c) This type of maintenance is essential to put machinery and equipment in good working condition
instantly to avoid serious consequences, for instance, cleaning of distributor cap in the electrical
system of an engine.
d) Reduction in cross section weakening the joint and creating a slag trapped in a weld.
[12)
TOTAL: 100
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