Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2022 - Paper 1
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to... show full transcript
Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2022 - Paper 1
Step 1
1.1.1 The types of gases used in MIG welding:
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Answer
The correct answer is A. The gases used in MIG welding typically include Argon, Helium, and CO2 as they provide a reliable shielding atmosphere.
Step 2
1.1.2 Typical voltage range of the plasma-cutting machine:
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Answer
The correct answer is C. The typical voltage range of plasma-cutting machines is between 20 to 50 volts.
Step 3
1.1.3 A pneumatic tool that can be used to loosen wheel nuts on a tractor:
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Answer
The correct answer is D. An air wrench is commonly used for loosening wheel nuts on tractors due to its efficiency.
Step 4
1.1.4 Which ONE of the following is regarded as a secondary cultivation tool?
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Answer
The correct answer is B. A rotavator is classified as a secondary cultivation tool, effectively preparing the soil for planting.
Step 5
1.1.5 A lawnmower cutting blade is manufactured from …
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Answer
The correct answer is A. Lawn mower blades are often made from carbon steel due to its durability and ability to hold a sharp edge.
Step 6
1.1.6 Which ONE of the following can NOT be used to provide drive from the tractor to the water pump on a crop sprayer?
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Answer
The correct answer is C. A drive chain is not commonly used in this context; typically, V-belts or PTO shafts are used.
Step 7
1.1.7 The ram-type baler is fitted with a …
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Answer
The correct answer is A. The packing arm is fitted to a ram-type baler to effectively separate hay in the baling chamber.
Step 8
1.1.8 This action causes a wind turbine to work less efficiently:
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Answer
The correct answer is D. Lack of maintenance can severely reduce wind turbine efficiency.
Step 9
1.1.9 The energy contained in sunrays:
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Answer
The correct answer is C. Sunrays contain solar energy, which is crucial for various natural processes.
Step 10
1.1.10 … changes the band structure of stainless steel and causes a reduction in striking strength.
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Answer
The correct answer is A. Manganese is known to affect the band structure of stainless steel, impacting its properties.
