Building Science N1 — Memo

August 2018 — N1 — Building Science

N1 2018 Nated Engineering

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Q1— Section header —

1.1.1

Q2— Section header —

2.1The mass per unit volume of a substance is called its density and is expressed in g/cm or kg/m (3\

2.2230 )T

2.3Volume = length breadth height = 4, 0,052 215 = 0,

3.1Portland cement Aggregate (fine and c oarse\ (3\ 230 )T

3.2During wet weather especially t is difficult to obtain batches of concrete that are uniform when the fine aggregate is measured by volume d ue to the increase in volume, known as bulking of the sand that occurs when it is in

3.31 litre of water = 1 kg Therefore 50 litres = 50 kg Water cement ratio = Massofwater Massofcement kg kg = 0,

Q4— Section header —

4.1The volume of a gas varies directly as it s absolute temperature changes the pressure is kept constant. (3\

4.2

4.32807 = 3 m (6\ 230 )T

4.4(5\ [16]16

Q5— Section header —

5.1.1Seasoning is the process of drying out a certain amount of moisture from cells and cell walls.

5.1.2Conversion is the process of sawing logs into planks and boards.

5.1.3

5.2Sodium fluoride Magnesium silico fluoride Mercuric chloride (4\

5.3Moisture content (%\ = originalweightdryweight dryweight 985814 = 21% (4\ [14]14

Q6— Section header —

6.1A number of forces lying on the same plane are called co planar forces. (3\

6.2(7\ [10] Q A C 300 N SPACE DIAGRAM No s cale 585 N P = bc = 505 N Q = ca = 585 N10

Q7— Section header —

Q8— Section header —

Mark Allocation

Sections10 + 18 + 10 + 16 + 14 + 10 + 10 = 88 marks

Paper information

TitleMemo

SubjectBuilding Science

LevelN1

Document typeNated Engineering

Year2018

MonthAugust

Pages8

Downloads7

Examination context

Decade2010s

Years ago8y

SeasonWinter (SH)

Start dayWednesday

Exam periodAugust 2018

Days since exam2,994

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 size498 KB

Pages8

Archived on8 September 2026

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