Building Science N2 — Document

April 2020 — N2 — Building Science

N2 2020 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 8 pages 📝 25 items found

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Questions — A Preview of What to Expect in the Document

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Q1— Section header —

1.2.1Specific heat capacity

1.2.2Heat capacity Name THREE changes which can be brought about when a material is heated. (3\

1.4A material is 235 cm long and its length increased to 235,33 cm after the temperature has increased by 120 Calculate the coefficient of linear expansion of material. (5\ [19]19

Q2— Section header —

2.1Calculate the total area of the compound section.

2.2Determine the distance of the centroid of each section from 'Y Y'. (3\

2.3Calculate the sum of the moments of the section about 'Y Y'. (5\

2.4Calculate the position of the centroid of the compound section from 'Y Y'. (4\ [16]16

Q3— Section header —

3.1Calculate the magnitude of support R by taking moments about R (5\

3.2Calculate the magnitude of support R by taking moments about R (5\

3.3Test your answer by taking into account the sum of the upward forces and the sum of the downward forces. (3\ [13

Q4— Section header —

4.1Redraw the spac e diagram and complete a Bow's n otation. (3\ Determine by graphical means the magnitude and direction of force NOTE No marks will be given for any calculations (9\

5.1Redraw the space diagram. (2\

5.2Complete the vector diagram required to analyse the forces in the members. (13\

5.3

Q6— Section header —

6.1.4\ in the ANSWER BOOK. orrect the statement if it is FALSE

6.1.1Bricks are baked and during this process heat absorb the moisture in.

6.1.2The bubbles are caused by water penetrating the pores in the brick and displaying the air inside the pores.

6.1.3Timber can become porous, as shrinking wood cells leave vacuums when the sap in the dries out.

6.1.4The density of a material where the voids are taken into account is called bulk density. (6\ Use the following scale : Linear scale 1 m = 10 mm and a f orce scale of mm = 2 kN.

6.3Calculate the bri ck porosity percentage (%\, if the volume of th e brick is 7 cm fter the brick has been crushed the absolute volume of the powder is 4 5 cm

Mark Allocation

Total100 marks

Sections19 + 16 + 12 + 15 = 62 marks

Paper information

TitleDocument

SubjectBuilding Science

LevelN2

Document typeQuestion paper

Year2020

MonthApril

Pages8

Downloads4

Examination context

Decade2020s

Years ago6y

SeasonAutumn (SH)

Start dayWednesday

Exam periodApril 2020

Days since exam2,384

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 size303.7 KB

Pages8

Archived on8 September 2026

File age47d

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