Building Science N1 — Document

August 2021 — N1 — Building Science

N1 2021 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 32 items found

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Q1— Section header —

1.10\n the ANSWER BOOK. QUANTITY UNIT SYMBOL Area

1.2Newton

1.3Density

1.7Volume

1.8cm

1.10kPa [10]10

Q2— Section header —

2.5\ in the ANSWER BOOK.

2.1and it is measured in kN.

2.2Gravity is th force of attraction that the earth exerts on other bodies.

2.3Concrete is a mixture of Portland cement, fine aggregate of sand, coarse aggregate of stone, and water.

2.4The process of sawing logs into planks and boards is known as seasoning.

2.510

Q3— Section header —

3.1Sketch and describe a simple experiment to show that fluid pressure is the same in all directions. (6\

3.2tank with a diameter of 1 050 mm is filled with water to a height of 1 5 m. Calculate the water pressure at the bottom of the tank in kilopascals. (8\

Q4— Section header —

4.1Define relative density (3\

4.2Calculate the density of paraffin by using the following information Mass of an empty container = 23,5 g Mass of an empty container and paraffin = 45,5 g Volume of

4.3A piece of timber is 4,5 long, 300 mm wide and 75 mm thick. The relative density of timber is 0,82. Determine the mass of the piece of

Q5— Section header —

5.1Graphically determine the magnitude, direction and sense of the resultant of the three coplanar forces shown in FIGURE 1 below. (8\ FIGURE 1

5.216

Q6— Section header —

6.1A force of 220 N is acting towards the right hand side and a force of 350 N is acting towards the left hand side along the same line of action. Determine the magnitude and direction of the resultant force.

6.2A force of 50 kN is acting downwards at an angle of 60 to the horizontal. Calculate the horizontal and vertical components. (6\ [10]10

Q7— Section header —

7.1A concrete beam is 8 m long and has a mass of 3 200 kg It is simply supported at both ends.

7.2FIGURE 2 below shows a beam with three forces acting on it. FIGURE 2 Determine the following by means of the link polygon method:

7.2.1The reactions at the supports (6\

7.2.2The position and magnitude of the resultant of the THREE forces Clearly indicate the distance from the resu ltant to the left hand end (A\ of the beam (13\

Mark Allocation

Total100 marks

Sections10 + 10 + 14 + 17 + 16 + 10 + 23 = 100 marks

Paper information

TitleDocument

SubjectBuilding Science

LevelN1

Document typeQuestion paper

Year2021

MonthAugust

Pages6

Downloads4

Examination context

Decade2020s

Years ago5y

SeasonWinter (SH)

Start daySunday

Exam periodAugust 2021

Days since exam1,896

About Building Science examination preparation

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File size271.8 KB

Pages6

Archived on8 September 2026

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