Welding NCV Level 3 — Document

November 2023 — NCV Level 3 — Welding

NCV Level 3 2023 NCV Engineering

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🎯 100 marks ⏱️ 3h 📄 6 pages 📝 40 items found

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Q1— Section header —

1.10\in the ANSWER BOOK.

1.1The m ost cost effective urnace used to produce steel

1.2The a verage temperature of steel for hot working to take place 000

1.3High carbon steel contain carbon

1.4Prevents stainless steel from rusting Carbon Iron

1.5Intermittent welding prevents porosity. lag inclusion

1.6A f illet weld weld. quare

1.7A w elding defect that forms holes in a weld Distortion

1.8Disadvantage of etal nert as (MIG\ welding

1.9Electrode used for tungsten inert gas welding are made from

1.10Increasing the strength and penetration of the weld evelling Hot

Q2— Section header —

2.1FIGURE 1 below shows a close up view of a hielded etal rc

2.2List FOUR problems that can be caused by using damp welding rods during the SMAW process. (4\

2.3Give a solution to resolve the issue of damp welding electrodes. (2\

2.4List FOUR welding hazards that ha ve to be attended to in terms of safety precautions and the O ccupational ealth and

2.5List SIX points to consider when doing a visual inspection o a completed weld. (6\ [25]25

Q3— Section header —

3.1Explain the oxyacetylene gas welding process. (6\

3.2State the function of a flashback arrest r. (2\

3.3List the FIVE steps that must be taken in preparing the welding environment. (5\

3.4FIGURE 2 below shows different welding defects. Identify each defect and give the corrective action that must be taken to remedy the defect. Write your answer next to the letter (A C\ in the ANSWER

Q4— Section header —

4.1State the characteristics that welding wire should display during and after as ungsten rc elding (GTAW\.

4.2List FIVE advantages of GTAW. (5\

4.3List SEVEN common welding defects that occur during GTAW. (7\ (6031033\ Copyright reserved

4.4State the precautions that must be taken to store the following welding equipment

4.4.1Shielding gas cylinders (3\

4.4.2Electrodes (2\

4.4.3Filler rods [25]25

Q5— Section header —

5.1List FIVE personal protective equipment required for welding. (5\

5.2Draw a neat sketch of the following welding bevels

5.2.1A single evel joint

5.2.2A double evel joint

5.2.3A V joint

5.2.4A double V joint (4 2\ (8\

5.3Calculate the amperage required to weld a 5 mm plate. NOTE: 0254 mm = 1 (5\

5.4State the consequences if the wire speed is too slow during MIG welding (2\ [20] TOTAL: 10020

Mark Allocation

Total100 marks

Sections10 + 25 + 20 + 25 + 20 = 100 marks

Paper information

TitleDocument

SubjectWelding

LevelNCV Level 3

Document typeQuestion paper

Year2023

MonthNovember

Pages6

Downloads2

Examination context

Decade2020s

Years ago3y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2023

Days since exam1,076

About Welding examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

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For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

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A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size313.1 KB

Pages6

Archived on8 September 2026

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