Platers Theory N2 — Memo

December 2023 — N2 — Platers Theory

N2 2023 Nated Engineering

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1.1Ensure that the job is properly fixed in the vice. Do not cut hard metals. [10]10

Q2— Section header —

2.1

2.2Rolling is the process of shaping material into round or oval shapes , for example, large rings and cylinders, using motorised or hand driven rollers whereas bending is the process of shaping sharper corners

Q3— Section header —

3.1

3.2A jig is a device used for the attachment securement and correct alignment of parts (3\ (3\ [10]10

Q4— Section header —

4.1Inside radius of large pipe [10]10

Q5— Section header —

5.1We fix purlins to the truss chords at right angles to support roof sheeting The purlins also provide lateral restraint to the roof structure

5.26

Q6— Section header —

6.1For outlining of small bent shapes for example, brackets, small pipes bends, and for developing patterns for sheet metal work.

6.2Light steel plate fitted with drilling bushes is used as template for batch drilling of large gusset plate.

6.3Timber is used for making template for use with oxy fuel gas profile machine. (3 [6]6

Q7— Section header —

7.1To soften th e metal, refine the grain size, and remove any stress that may be present. (2\

7.2.1ncreases brittleness. ncreases hardness. [6]6

Q8— Section header —

8.1Flame cleaning n ozzles spread the heating flame so that mill scale, oxide paint and grease can be removed from the surface of the work piece. (2\

8.2The nozzle is held to close to the work piece The r egulator pressure is incorrectly set The n

8.4.1Oxygen is the gas responsible for causing combustion.

8.4.2Oxy acetylene is the process in which oxygen and acetylene are mixed, to become a source of heat

8.4.3Sustained backfire is the gas entering the nozzle or torch and continues burning inside with a hissing noise (3 (3\ [12]12

Q9— Section header —

9.1.1Penetration is the distance the weld metal fuses into the root of the joint

9.1.2Run is the metal deposited during one passage of the electrode

9.1.3Welding face is the surface of a weld

9.1.4Bevel angle is the angle formed betwee n the prepared edge of a member

9.1.5

9.2Electrode at incorrect angle Insufficient supply of filler material Excessive wave [15]15

Q10— Section header —

10.2MARK QUANTITY MATERIAL LENGTH Kg/m TOTAL MASS TOTAL 118.455

Mark Allocation

Total118 marks

Sections10 + 10 + 10 + 10 + 6 + 6 + 6 + 12 + 15 + 15 = 100 marks

Paper information

TitleMemo

SubjectPlaters Theory

LevelN2

Document typeNated Engineering

Year2023

MonthDecember

Pages5

Downloads3

Examination context

Decade2020s

Years ago3y

SeasonSummer (SH)

Start dayFriday

Exam periodDecember 2023

Days since exam1,045

About Platers Theory 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

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

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

identifying revision priorities

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 size221.4 KB

Pages5

Archived on8 September 2026

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