NSC Agricultural Technology Welding techniques: Study the illustration of an MIG

Question

Study the illustration of an MIG welding machine below and answer the questions that follow.

4.1.1 Identify parts A and B.

4.1.2 Name the apparatus that can be attached to the welding machine to weld aluminium.

4.1.3 Name TWO gases that can be used with MIG welding.

4.1.4 Name THREE different metals that can be welded successfully with the MIG welding machine.

Plasma cutting is a quick and effective way to cut through steel. The diagram below shows the nozzle of a plasma cutter.

4.2.1 Identify the material used for part A.

4.2.2 Briefly describe the plasma-cutting process.

4.3 Name TWO types of metals that can be cut using oxyacetylene.

4.4 Briefly describe the process of shutting down an oxyacetylene flame and bleeding the system.

5. Study the illustration of an arc welding process below and answer the questions that follow.

4.5.1 Describe the process of vertical up arc welding.

4.5.2 Draw THREE different types of welding runs used for vertical welding.

6. Read the scenario below.

You have been requested to install a 50 kVA generator, similar to the one shown below, on a dairy farm to prevent the farmer from suffering great losses during power failures.

The generator must be installed on a strong, level concrete foundation.

The measurements for the generator are 2 300 mm long, 1 000 mm wide and 1 300 mm high.

The size of the (concrete) block is 2 500 mm x 1 200 mm x 250 mm.

4.6.1 Calculate the volume of concrete needed.

Formula: Volume = length x width x height.

4.6.2 Design and sketch a roof that must protect the generator from unfavorable weather conditions. Show at least TWO measurements.

Study the illustration of an MIG welding machine below and answer the questions that follow - NSC Agricultural Technology - Question 4 - 2022 - Paper 1

Worked Solution & Example Answer:Study the illustration of an MIG welding machine below and answer the questions that follow - NSC Agricultural Technology - Question 4 - 2022 - Paper 1

Identify parts A and B.

Name the apparatus that can be attached to the welding machine to weld aluminium.

Name TWO gases that can be used with MIG welding.

Name THREE different metals that can be welded successfully with the MIG welding machine.

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