The picture below shows a plasma cutting machine - NSC Agricultural Technology - Question 4 - 2016 - Paper 1
Question 4
The picture below shows a plasma cutting machine. Answer the questions that follow.
4.1.1 Explain what will happen when water enters the torch of the plasma cutter ... show full transcript
Worked Solution & Example Answer:The picture below shows a plasma cutting machine - NSC Agricultural Technology - Question 4 - 2016 - Paper 1
Step 1
Explain what will happen when water enters the torch of the plasma cutter nozzle.
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Answer
When water enters the torch of the plasma cutter nozzle, it can cause internal arcing or a short circuit. This arcing can damage the nozzle and potentially lead to decreased performance or failure of the plasma cutting machine.
Step 2
Give TWO reasons for using the welding helmet when doing plasma cutting.
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Answer
The visor blocks harmful ultraviolet rays that can cause serious eye damage.
It protects the operator's face and eyes against sparks and heat generated during the plasma cutting process.
Step 3
Identify the nozzle that is used for plasma cutting.
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Answer
The correct nozzle for plasma cutting is identified as nozzle C from the provided images.
