During the maize harvesting season, a farmer notices that rain is an imminent hazard - NSC Agricultural Technology - Question 5 - 2022 - Paper 1
Question 5
During the maize harvesting season, a farmer notices that rain is an imminent hazard.
5.1.1 State TWO measures the farmer can take to ensure that the maize will be ... show full transcript
Worked Solution & Example Answer:During the maize harvesting season, a farmer notices that rain is an imminent hazard - NSC Agricultural Technology - Question 5 - 2022 - Paper 1
Step 1
State TWO measures the farmer can take to ensure that the maize will be harvested on time.
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Answer
Make use of contractors to increase the workforce.
Work longer hours to maximize harvest time before rain.
Step 2
Identify an alternative method, other than a combine harvester, that can be used for harvesting. Justify your answer.
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Answer
An alternative method is hand harvesting using a tractor drawn harvester. Justification: A combine harvester cannot operate effectively in wet soil conditions, and hand harvesting allows work to continue in such weather.
Step 3
Recommend THREE aspects to consider when buying a new baler.
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Price - to ensure it fits the budget.
Local maintenance services - to guarantee support and servicing availability.
Type of baler - different types may suit different farming needs.
Step 4
Which ONE of the bales in A or B would use less space during transportation?
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Bale A would use less space during transportation.
Step 5
Give ONE reason to justify your answer to QUESTION 5.3.1.
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Bale A is more compact, allowing for more efficient stacking.
Step 6
From the bales (in A or B above), identify the bale that can be wrapped.
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The bale that can be wrapped is in A.
Step 7
Give a reason why the baling process in B can be used until it starts raining.
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Baling process B allows water to run down the bale, preventing spoilage and enabling outdoor storage.
Step 8
Name FIVE round baler safety measures that young, upcoming farmers should consider.
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Always familiarize yourself with the operator's manual.
Ensure all safety screens are in place.
Be cautious when backing up, as balers can reduce visibility.
Avoid sharp turning to prevent accidents.
Block the gate before working to ensure safety.
Step 9
Identify the type of belt which would best fit on the pulley system above. Give ONE reason for your answer.
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A V-belt is best suited because it does not easily slip off and maintains traction on the pulleys.
Step 10
Indicate how you can change the direction in which pulley A rotates.
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You can change the direction by switching the motor to the other side of the pulley system.
Step 11
Identify gears A and B.
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Gear A is a spur gear, and Gear B is a helical gear.
Step 12
Calculate and determine the ratio of the gear connection in A using the following information: Driving gear: 128 teeth, Driven gear: 16 teeth.
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The ratio is calculated as follows:
Ratio=Driven gearDriving gear=16128=8:1
Step 13
Tabulate ONE advantage and ONE disadvantage of EACH gear assembly.
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Gear A (Spur gear): Advantage - Easy to manufacture; Disadvantage - Noisy.
Gear B (Helical gear): Advantage - Lasts longer; Disadvantage - More expensive to manufacture.
Step 14
From the gears identified in QUESTION 5.5.1, choose the gear assembly which would improve speed.
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The gear assembly which would improve speed is gear assembly A.
Step 15
Identify cylinders A and B.
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Cylinder A is a double action cylinder and Cylinder B is a single action cylinder.
Step 16
Choose which ONE of the cylinders is most suitable on a front-end loader.
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Cylinder A, the double action cylinder, is most suitable.
Step 17
Briefly explain the reason for the answer to QUESTION 5.6.2.
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The double action cylinder allows control of both lifting and lowering motions, providing better maneuverability for the loader.
Step 18
Give TWO reasons to justify the use of transmission oil in a tractor hydraulic system.
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It is not compressible, ensuring efficient transfer of power.
It provides good lubrication qualities, reducing wear on moving parts.
