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 for night surveillance as they can detect heat and provide clear images in the dark.
Step 2
1.1.2 A … is used to load large round bales safely onto a truck.
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Answer
The answer is C loading ramp. A loading ramp facilitates the safe loading of large items like bales onto vehicles.
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 managing the battery charging process to prevent overcharging.
Step 4
1.1.4 … is NOT associated with the running expenses of a tractor.
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Answer
The answer is A Depreciation. While depreciation affects the overall value of the tractor, it is not a direct running expense like fuel or 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 answer is B Standardisation. Standardisation ensures that all agricultural equipment meets certain criteria for interoperability and safety.
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 sealing material due to its flexibility and durability.
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 answer is B size of the nozzle. The nozzle size directly influences the gas flow rate in welding applications.
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 answer is D Helical gear. Helical gears have teeth that are cut at an angle, allowing for smoother and quieter 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 integral to chain drive systems, transferring motion between chains and wheels.
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 mainly provide navigation and operational data but do not directly identify mechanical issues.
