Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2021 - Paper 1
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write the letter (A–D) next to the question numbers (1.1.1 to 1.1.... show full transcript
Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2021 - Paper 1
Step 1
1.1.1 … cameras are installed on drones to do surveillance work at night.
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Answer
The correct answer is C: Infrared. Infrared cameras are commonly used for night surveillance as they can detect heat signatures.
Step 2
1.1.2 A … is used to load large round bales safely onto a truck.
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Answer
The correct answer is D: front-end loader. A front-end loader is equipped to lift and load heavy bales onto trucks.
Step 3
1.1.3 A device installed in a solar charger system that prevents the battery from overcharging:
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Answer
The correct answer is C: Regulator. A regulator controls the voltage and prevents the battery from being overcharged.
Step 4
1.1.4 … is NOT associated with the running expenses of a tractor.
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Answer
The correct answer is A: Depreciation. While depreciation is a cost consideration, it is not a direct running expense.
Step 5
1.1.5 … is a term associated with agriculture, where all farm equipment and spares must comply with certain common requirements.
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Answer
The correct answer is B: Standardisation. Standardisation ensures compatibility and compliance among farm equipment.
Step 6
1.1.6 A material that can be used effectively as a seal around the door of a cold storage room:
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Answer
The correct answer is D: Rubber. Rubber is flexible and can provide a tight seal against cold air.
Step 7
1.1.7 The … determines the volume of the gas flow when welding with an oxyacetylene set.
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Answer
The correct answer is B: size of the nozzle. The nozzle size regulates the flow of gas during welding.
Step 8
1.1.8 The teeth of this type of gear run at an angle across the outer circumference of the gear:
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Answer
The correct answer is D: Helical gear. Helical gears have angled teeth which help with smoother operation.
Step 9
1.1.9 The … can be used effectively in a chain drive system.
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Answer
The correct answer is B: sprocket. Sprockets are essential components in chain drive systems.
Step 10
1.1.10 … is NOT a function of GPS navigation systems in modern combine harvesters.
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Answer
The correct answer is C: Identifying a mechanical problem. GPS systems in harvesters focus on navigation and positioning rather than mechanical issues.
