Building Science N2 — Memo

November 2020 — N2 — Building Science

N2 2020 Nated Engineering

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Q1— Section header —

1.1The main purpose of a roof is to protect a building against the force of nature like rain, wind, hail or snow. (2\

1.2Hail resistant Water resistant The influence of climatic changes Reflection and absorption of heat and cold Attractiveness Roof construction Durability Mass Resistance to rust

Q2— Section header —

2.1Take moments about R to calculate the magnitude of R CW oments 6\ (20 1\

6.56\ = 1055 1010 = 168.333 KN

2.3Test the answer to prove equilibrium: orces (111.667 kN + 168.333 kN\ = (45 kN + 15 kN + 200 kN + 20 kN\ 280 kN = 280 kN [13]13

Q3— Section header —

Q4— Section header —

4.1MEM

4.1.1AREA

4.1.2DISTANCE

4.1.3

4.1.4155216.82 mm 3985.841 mm entroi d is the centre point of a two dimensional area. The exact centre of an object is

Q5— Section header —

5.1.1(4\ =95

2.5=95

5.1.2(13\

5.1.3MEMBER MAGNITUDE NATURE 58 kN (9\ [26]26

Q6— Section header —

6.1Convection Glass container Boil ing water Method: Tie the copper and steel bar s together form a combine

Mark Allocation

Sections14 + 13 + 9 + 23 + 26 = 85 marks

Paper information

TitleMemo

SubjectBuilding Science

LevelN2

Document typeNated Engineering

Year2020

MonthNovember

Pages6

Downloads6

Examination context

Decade2020s

Years ago6y

SeasonSpring (SH)

Start daySunday

Exam periodNovember 2020

Days since exam2,169

About Building Science 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 size308.8 KB

Pages6

Archived on8 September 2026

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