1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2021 - Paper 1
Question 1
1.1 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 ... show full transcript
Worked Solution & Example Answer:1.1 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 in surveillance, especially during the night, as they can detect heat emitted by objects.
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 designed for lifting and moving heavy objects like round bales.
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 is essential in maintaining the appropriate charge level in batteries.
Step 4
1.1.4 … is NOT associated with the running expenses of a tractor.
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Answer
The correct answer is D: Supervising. Supervising is not a direct running expense unlike depreciation, fuel, and labor.
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. This term refers to the compliance of agricultural equipment to set standards.
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 commonly used as a sealant due to its insulating properties.
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 directly influences the gas flow rate in 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 that allow for 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 are primarily for navigation and monitoring, not for mechanical diagnostics.
