1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2017 - Paper 1
Question 1
1.1 Various options are provided as possible answers to the following questions. Write down the question number (1.1.1–1.1.10), choose the answer and make a cross (X... 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 - 2017 - Paper 1
Step 1
1.1.1 Plasma cutting machines may be used to cut ... sheets.
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Answer
The correct answer is C: stainless steel. Plasma cutting machines are capable of cutting various metals, and stainless steel is one of the materials they can effectively handle.
Step 2
1.1.2 A gas mixture used to cut thick steel with the plasma cutting machine, which is preferred because of its ability to produce high temperatures:
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Answer
The correct answer is B: Oxyacetylene. This gas mixture is commonly used in welding due to its high flame temperature, making it suitable for cutting thick steel.
Step 3
1.1.3 ONE of the following metals may be arc-welded successfully:
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Answer
The correct answer is D: Mild steel. Unlike zinc and copper, which can be difficult to arc weld, mild steel is one of the most commonly welded materials.
Step 4
1.1.4 The pipe-weld joining method used most commonly when manufacturing a farm gate is the ... roll position.
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Answer
The correct answer is A: butt joint. This method is typically used for joining pipes in various applications, including farm gates.
Step 5
1.1.5 The function of the gas shield around the welding bead when MIG welding:
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Answer
The correct answer is A: Prevents oxidation. The gas shield protects the weld from contaminants in the air, allowing for a cleaner and stronger weld.
