Welders Theory N2 — Document

November 2023 — N2 — Welders Theory

N2 2023 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 6 pages 📝 42 items found

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Q1— Section header —

1.1

1.2FIGURE 2 shows an angle grinder. FIGURE 2 List FOUR safety precautions to consider when operating an angle grinder. (4\ [10]10

Q2— Section header —

2.1Illustrate by means of a neat labelled drawing , the connection between an angle

2.2What is a jig? (2\ [7]7

Q3— Section header —

3.1Illustrate by means of a neat drawing a pipe reducer between two pipes of different diameters. Show the large diameter pipe, small

3.2What is a centre finder used for? (2\ [8]8

Q4— Section header —

4.1Draw the given views on the DRAWING SHEET (attached\ (3\

4.2Use the triangulation method to develop the p attern of the transition piece. Write your E XAMINATION NUMBER on the DRAWING SHEET and place it in the ANSWER BOOK. (12\ [15]15

Q5— Section header —

Q6— Section header —

6.1Name FIVE metal alloys. (5\

6.2Differentiate between white cast iron and grey cast iron (2 + 2\ (4\

6.3Give THREE advantages of fusion welding. (3\

6.4State THREE characteristics of austenitic stainless steel. (3\ [15]15

Q7— Section header —

7.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'False' next to the question number (7.1.1

7.1.5\in the ANSWER BOOK.

7.1.1Store acetylene and oxygen cylinders separately.

7.1.2Stack c ylinders on top of each other.

7.1.3Chain cylinders when transporting them.

7.1.4Keep ylinders in a cool storage bay in a upright position.

7.1.5

7.2Explain the process of liquefying air to produce oxygen. (5\

7.3State TWO effects of welding over a painted item. (2\ [12]12

Q8— Section header —

8.1Illustrate by means of a neat drawing , each of the following welding symbols:

8.1.1Fillet weld

8.1.2Square weld

8.1.3

8.2Explain each of the following terms

8.2.1Heat affected zone

8.2.2

8.3List THREE characteristics of the weld bead that weaving of the electrode can control (3\ [15]15

Q9— Section header —

Q10— Section header —

10.1Explain the post heating of welding. (5\

10.2Give THREE reasons for empering steel. (3\ [8] TOTAL: 1008

Q4— Section header —

Mark Allocation

Total100 marks

Sections10 + 7 + 8 + 15 + 5 + 15 + 12 + 15 + 5 + 8 = 100 marks

Paper information

TitleDocument

SubjectWelders Theory

LevelN2

Document typeQuestion paper

Year2023

MonthNovember

Pages7

Downloads3

Examination context

Decade2020s

Years ago3y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2023

Days since exam1,074

About Welders Theory examination preparation

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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.

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A practical revision approach

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File details

File size390.2 KB

Pages7

Archived on8 September 2026

File age45d

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