Civil Technology Grade 12 NSC June 2024 Question Paper (Eng)

Confidential basic education Department: Basic Education REPUBLIC OF SOUTH AFRICA SENIOR CERTIFICATE EXAMINATIONS/ NATIONAL SENIOR CERTIFICATE EXAMINATIONS CIVIL TECHNOLOGY: CONSTRUCTION MAY/JUNE 2024 MARKS: 200 TIME: 3 hours This question paper consists of 15 pages and 6 answer sheets. Copyright reserved Please turn over

Civil Technology: Construction 2 DBE/May/June 2024 SC/NSC Confidential REQUIREMENTS: 1. 2. 3. Drawing instruments A non-programmable calculator ANSWER BOOK INSTRUCTIONS AND INFORMATION FY N a oOo N 11. 12. 13. 14, 15. 16. 17. 18. Copyright reserved This question paper consists of SIX questions. Answer ALL the questions. Read all the questions carefully. Answer each question as a whole. Do NOT separate subsections of questions. Number the answers correctly according to the numbering system used in this question paper. Start the answer to EACH question on a NEW page. Do NOT write in the margins of the ANSWER BOOK. You may use sketches to illustrate your answers. Write ALL calculations and answers in the ANSWER BOOK or on the attached ANSWER SHEETS. Use the mark allocation as a guide to the length of your answers. Make drawings and sketches in pencil, fully dimensioned and neatly finished off with descriptive titles and notes to conform to the SANS/SABS Code of Practice for Building Drawings. For the purpose of this question paper, the size of a brick should be taken as 220 mm x 110 mm x 75 mm. Use your own discretion where dimensions and/or details have been omitted. Answer QUESTIONS 2, 3.6, 4.9, 5.6, 6.5 and 6.6 on the attached ANSWER SHEETS using drawing instruments, where necessary. Write your CENTRE NUMBER and EXAMINATION NUMBER on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not. Drawings in the question paper are NOT to scale due to electronic transfer. Google Images was used as the source of all photographs and pictures. Write neatly and legibly. Please turn over

Civil Technology: Construction 3 DBE/May/June 2024 SC/NSC Confidential QUESTION 1: OHSA, MATERIALS, TOOLS, EQUIPMENT AND JOINING (GENERIC) Start this question on a NEW page. 1.1 Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A-D) next to the question numbers (1.1.1 to 1.1.12) in the ANSWER BOOK, e.g. 1.1.13 D. 1.1.1 Water-based paint ... A can be applied to wet wood. B_ allows moisture to penetrate surfaces. C_ takes days to dry. D_ gives an elastic and flexible finish. 1.1.2 Zinc can be applied to metals to .... A increase the thickness of the metal. Badd strength to the original metal. C prevent rust. D_ All the above-mentioned 1.1.3 ... improves the engineering and mechanical properties of metal. Curing Electroplating Galvanising Painting VUaQW> 1.1.4 Toe boards are attached to a scaffold platform to ... A fix the scaffold platform to it. B stabilise the scaffold. C_ prevent tools from falling off. D_ prevent workers from falling off. 1.1.5 The maximum height for a trestle scaffold: A 6m B 3m Cc 8m D 10m 1.16 Suspended scaffolds can be made of ... A fibreglass. B.ssteel. C graphite. D fibre cement. Copyright reserved Please turn over (1) (1) (1) (1) (1) (1)

Civil Technology: Construction 4 1.1.7 1.1.8 1.1.9 1.1.10 1.1.11 1.1.12 Copyright reserved SC/NSC Confidential ... can be used to dispose of waste material. A A conveyer belt and chute Bladder Cc scaffold D_ None of the above-mentioned Properties that define a builder's hoist: A Itis a lifting device B_ The type of power C_ The size of the cables D Only AandB DBE/May/June 2024 Workers must not use ... stairways that will be a temporary part of the structure when carrying materials. A straight B timber C_ spiral D half landing Stairways must not be installed more than ... degrees from the horizontal. A 50 B 30 Cc 40 D 75 When a ladder is placed against a wall, the angle must be at a ratio of... A B Cc D en anes Oak w A/An ... ladder must never be used near electrical cables. aluminium timber synthetic fibreglass jwheke D4 Please turn over (1) (1) (1) (1) (1) (1)-

Civil Technology: Construction 5 DBE/May/une 2024 SC/NSC Confidential 1.2 You have been tasked to install a bathroom cabinet against a wall. 1.2.1 Name the joining fixture you will use to secure the cabinet. (1) 1.2.2 Motivate why you will use this joining fixture. (2) 1.2.3 Explain how you will install the cabinet with pre-drilled holes by using the joining fixture in QUESTION 1.2.1. The positions of the holes have been marked on the wall. (3) 1.3 You have been asked by a contractor to install a shower in a bathroom. 1.3.1 Name the tool to detect existing water pipes in the wall. (1) 1.3.2 Name the tool to ensure that the top of the cubicle is level. (1) [20] QUESTION 2: GRAPHICS AS MEANS OF COMMUNICATION (GENERIC) Start this question on a NEW page. FIGURE A and FIGURE B on the next page show drawings that appear on a building plan. Analyse the drawings and complete the table on ANSWER SHEET 2. Copyright reserved Please turn over

Civil Technology: Construction SC/NSC Confidential DBE/May/June 2024 COUUU0 SOLAR PANELS yy 2 600 NOTES: Contractors must verify all dimensions and levels on site before commencing work. Architects to be notified of any discrepancies immediately. Finishing of walls: Stone cladding Sliding doors are installed with laminated safety glass Dimensions of sliding doors: 2 100 mm x 1 800 mm Concrete stairs according to engineer's specifications Balusters: To be made of 40 mm x 40 mm steel tubing and a height of o 3 4.200 mm N ——_ FFL Architect's signature .. 12 000 Client's signature «0.2.0.0... eee FIGURE A REVISION | _ DATE: DRAWING OF 1 20/02/2024 | BALUSTRADES 5 500 5 840 ; PRINTED BY: DATE OF PRINT: 220 220 | 220 FOX PRINTERS 22/04/2024 220 £40 ES w4 wi N DRAWING TITLE: GROUND FLOOR AND. WEST ELEVATION ——— SS See Saat © a | 8 PROJECT: iS PROPOSED DWELLING OF MR P XHOSA im BATHROOM STORE Room }}/= La PLOT 46, PROTEA STREET, PHOENIX | f © H ° PROJECT NO.: DRAWING NO.: GARAGE g GR 320-224 446P5 KITCHEN 1x40W DATE: DRAWN: | CHECKED: A ie) 16/04/2024 | JNKRIEL E BUYS = fo) = is) ELEVATION AND FLOOR PLAN SCALE 1: 100 : Aine REFERENCE CODE i s) 3 QP 6- 2024 { a 8 WINDOW SCHEDULE “ im NA “ o hws (8) 3 3 ® fh FIGURE B a ot wi [40] Copyright reserved Please turn over

Civil Technology: Construction 7 DBE/May/June 2024 SC/NSC Confidential QUESTION 3: ROOFS, STAIRCASES AND JOINING (SPECIFIC) Start this question on a NEW page. 3.1 Define the following terms related to staircases: 3.1.1 Baluster (1) 3.1.2 Run (1) 3.2 Draw in the ANSWER BOOK a neat two-dimensional sketch of a J-bolt cast-in anchor connecting a concrete section to steel. (4) 3.3 Draw in the ANSWER BOOK a staircase showing a riser and a tread/going. Label the TWO parts. (4) 3.4 Explain the purpose of a roof underlay. (2) 3.5 By means of TWO sketches, differentiate between the timber used to fix a concrete roof tile and the timber used to fix iron roof sheeting. Print the correct title and dimensions under EACH drawing. (6) 3.6 Use ANSWER SHEET 3.6 and draw to scale 1 : 20 more than half of a SA (Howe) roof truss. Use the following specifications: e The pitch of the roof is 30°. e The span of the roof is 4 000 mm. e The roof overhang is 400 mm. e The roof trusses are constructed of 114 x 38 mm timber. (12) [30] Copyright reserved Please turn over

Civil Technology: Construction 8 DBE/May/June 2024 SC/NSC Confidential QUESTION 4: EXCAVATIONS, FORMWORK, TOOLS, EQUIPMENT AND MATERIALS (SPECIFIC) Start this question on a NEW page. 4.1 Change the underlined words in the following to make the statements correct. Write only the appropriate word(s) next to the question numbers (4.1.1 to 4.1.5) in the ANSWER BOOK. 4.1.1 The purpose of the slump test is to determine the compression and consistency of the batches that are mixed. (1) 4.1.2 The cubes of the cube test must rest in the laboratory for at least 12 hours before testing can commence. (1) 4.1.3 Casting ready-mix concrete wastes time. (1) 4.1.4 If freshly cast concrete is kept dry, it will last longer. (1) 4.1.5 Galvanised sheet metal has a shiny bluish-grey colour. (1) 4.2 FIGURE 4.2 below shows people working in excavations. we FIGURE 4.2 4.2.1 Describe TWO factors that can cause an excavation to collapse. (2) 4.2.2 Explain TWO factors that should be considered when excavating to clear a site. (2) 4.2.3 When should trenches be inspected to ensure the safety of workers? (1) 4.2.4 Why will you use benching in an excavation? (1) Copyright reserved Please turn over

Civil Technology: Construction 9 DBE/May/June 2024 4.3 44 4.5 4.6 47 4.8 SC/NSC Confidential FIGURE 4.3 below shows the foundation walls of a building that has been completed and workers are busy with backfilling. FIGURE 4.3 4.3.1 Recommend TWO machines that can be used to compact the loose soil. 4.3.2 Name TWO factors that the worker is exposed to while working with this machine. 4.3.3 Safety precautions should be considered when backfilling is in progress to prevent injury to other workers on site. Name TWO safety precautions. Explain why a portable concrete vibrator with a petrol engine should NOT be laid on its side. State why it is important to clean a construction machine after use. State TWO advantages of installing metal sheet cladding. Describe proprietary fixing when fixing cladding to a wall. Name the type of metal that you will use to withstand blows and knocks. Copyright reserved Please turn over (2) (2) (2) (1) (2) (2) (2) (1)

Civil Technology: Construction 10 DBE/May/June 2024 SC/NSC Confidential 49 FIGURE 4.9 below shows the incomplete drawing of a vertical section through a concrete beam with floor slabs that is supported by a continuous head tree/bearer with adjustable props. Use ANSWER SHEET 4.9 and draw the omitted formwork for the beam and floor slabs on both sides. Print any TWO labels. FIGURE 4.9 (15) [40] Copyright reserved Please turn over

Civil Technology: Construction 11 SC/NSC Confidential DBE/May/June 2024 QUESTION 5: PLASTER AND SCREED, BRICKWORK AND GRAPHICS AS MEANS OF COMMUNICATION (SPECIFIC) Start this question on a NEW page. 5.1 FIGURE 5.1 below shows a worker busy on a construction site. FIGURE 5.1 5.1.1 Describe what the worker is doing. 5.1.2 Name the TWO tools that the worker is using. 5.1.3 Name the recommended mix proportions for plastering dams or pools. 5.2 How many bags of lime can be recommended for use with ONE bag of cement to increase the workability of plaster? 5.3 Describe the function of screed. 5.4 Name TWO factors to be considered when preparing ground to pave a small area. Copyright reserved Please turn over (1) (2) (2) (1) (1) (2)

Civil Technology: Construction 12 DBE/May/June 2024 SC/NSC Confidential 5.5 FIGURE 5.5 below shows an arch in a wall. c B D — A FIGURE 5.5 5.5.1 Identify the arch. (1) 5.5.2 Identify A to D. (4) 5.5.3 Name the brick bond used around the arch. (1) 5.5.4 Describe TWO disadvantages of the arch. (2) 5.6 USE ANSWER SHEET 5.6 and draw a cavity wall with a concrete floor to scale 1: 10. Print any TWO labels on your drawing. Use the following specifications: The floor is 75 mm thick. There are THREE layers of bricks below the floor. There are THREE layers of bricks above the floor. ADD ALL the other detail of the cavity wall. NOTE: The size of a brick is 75 mm x 100 mm x 220 mm. (13) [30] Copyright reserved Please turn over

Civil Technology: Construction 13 DBE/May/June 2024 SC/NSC Confidential QUESTION 6: REINFORCEMENT IN CONCRETE, FOUNDATIONS, CONCRETE FLOORS AND QUANTITIES (SPECIFIC) Start this question on a NEW page. 6.1 Choose a description from COLUMN B that matches the item in COLUMN A. Write only the letter (A-H) next to the question numbers (6.1.1 to 6.1.5) in the ANSWER BOOK, e.g. 6.1.6 J. COLUMN A COLUMN B 6.1.1 Ribbed bar done by an engineer 6.1.2 Reinforcement design placed in compression area 6.1.3 Main bar works against shearing forces 6.1.4 Crosswise method of placing bars 6.1.5 Anchor bar works against tensile forces placed in the middle of a beam Qo 71m OO WD D> method of joining reinforcement bars H patterns ensure better bonding with concrete (5x1) 6.2 FIGURE 6.2 below shows components used in reinforcement. FIGURE 6.2 6.2.1 Identify A and B. 6.2.2 What is the purpose of the wires at B? 6.2.3 What is the main purpose of the components? Copyright reserved Please turn over (5) (2) (1) (1)

Civil Technology: Construction 14 6.3 FIGURE 6.3 below shows an incomplete suspended floor. 6.3.1 6.3.2 6.3.3 6.3.4 6.4 FIGURE 6.4 below shows a pile being driven into the ground. 6.4.1 6.4.2 6.4.3 6.4.4 Copyright reserved SC/NSC Confidential ~ FIGURE 6.3 Identify this type of floor. DBE/May/June 2024 Name ONE material that you will use to complete this floor up to finished floor level. How long should the concrete for this type of floor be cured? Draw a pictorial view of the supporting member on which the hollow core blocks can be placed. FIGURE 6.4 Identify the type of pile foundation installation. Name the device the crane is using to drive the pile into the ground. Name ONE other method that can be used to install pile foundations. Name TWO soil conditions where this type of foundation will be recommended above normal strip foundations. Please turn over (1) (1) (1) (4) (1) (1) (1) (2)

Civil Technology: Construction 18 DBE/May/June 2024 6.5 6.6 SC/NSC Confidential ANSWER SHEET 6.5 shows the front view of the reinforcement in a round concrete column. Project and draw the top view of the concrete column with reinforcement. Indicate the minimum concrete cover and print any ONE label. (7) FIGURE 6.6 below shows the floor plan of a new building. 4 560 8 560 FIGURE 6.6 Use the following specifications: e The screed is 30 mm thick. e The width of the external wall is 220 mm. Use the dimension paper on ANSWER SHEET 6.6 and calculate the following. Round off your answer to TWO decimals. 6.6.1 The reinforcing for the floor between the external walls (7) 6.6.2 The volume of the screed needed between the external walls (4) NOTE: A mark will be awarded for the correct use of the dimension paper. (1) [40] TOTAL: 200 Copyright reserved

Civil Technology: Construction DBE/May/June 2024 SC/NSC Confidential | CENTRE NUMBER: L [| [ [ [| |] [EXAMINATIONNUMBER: [| [| | | | | LT TT 7] ANSWER SHEET 2 NO. QUESTIONS ANSWERS MARKS 1 Name the type of building that is 1 : illustrated by FIGURE A. 2 Deduce from the building plan the 1 ‘ elevation on which the sink is located. 3. Identify number 1. 1 4 Why are balusters installed at 1 , number 2? 5 What type of material was specified 1 . for number 3? 6 Recommend ONE suitable material for 1 . number 4. 7 Who is the owner of the proposed 1 : dwelling? 8 Identify the number that indicates the 1 , downpipe. Name ONE other sanitary fixture, 9. besides a wash basin, that can be 1 installed in the bathroom. 10. | Identify number 7. 1 11. | Describe the purpose of number 8. 1 12 How many fluorescent tubes are 1 * | indicated in the building? 13. | Name the street in which the new 1 building will be erected. Copyright reserved

Civil Technology: Construction SC/NSC Confidential DBE/May/June 2024 [ CENTRE NUMBER: LJ J J [EXAMINATION NUMBER: [| | |_| What type of finish was specified for 14. 1 the walls? 15 Deduce from the building plan why it 1 * | was revised. 16 What must be installed to gain access 1 * | to the first and second floor? 17 Deduce from the building plan who 2 ~ | must sign off the building plan. 18 What are the prescribed dimensions 1 * | for the balusters? How many hinged window openings 19. | are indicated on window 2 in the 1 window schedule? Provide a reason for installing solar 20. 1 panels on the roof. The interior door frames are covered 21. | with plywood. Draw the symbol for 2 plywood. Draw the symbol for a wall mounted 22. . 2 urinal. Describe the top end shape of the 23. 1 baluster. Copyright reserved

Civil Technology: Construction SC/NSC Confidential | CENTRE NUMBER: L [ [ | [EXAMINATION NUMBER: | | | | DBE/May/June 2024 24. Calculate the total height of the building from the finished floor level up to the top of the roof. Give your answer in m. 25. Calculate the area of the external wall of the second floor from the top of the floor up to roof height in the west elevation in FIGURE A. Show ALL calculations. Give your answer in m?. TOTAL: 40 Copyright reserved

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Civil Technology: Construction DBE/May/June 2024 SC/NSC Confidential [CENTRE NUMBER: [| | | | T TJ [EXAMINATIONNUMBER: | | | | | | | | | [| [| | [ J ANSWER SHEET 4.9 Sh £> Pe AL Copyright reserved CONTINUOUS HEAD TREE/BEARER |} ADJUSTABLE PROP ASSESSMENT CRITERIA MARK _| CANDIDATE'S MARK |] oon] sfeo|no| ]3 IN| N|N]Ny]y] Py] 3/ ro TOTAL:

Civil Technology: Construction DBE/May/June 2024 SC/NSC Confidential | CENTRE NUMBER: | | | J J] J] J [EXAMINATIONNUMBER: | | | | | | | | | | | 4] ANSWER SHEET 5.6 ASSESSMENT CRITERIA NO. MARK _| CANDIDATE'S MARK 1 1 2 1 3 1 4 2 5 1 6 2 A 1 8 2 9 2 TOTAL: 13 Copyright reserved

Civil Technology: Construction SC/NSC Confidential [CENTRE NUMBER: _ | | TJ DBE/May/June 2024 | EXAMINATION NUMBER: | [I | | [ J T I ANSWER SHEET 6.5 REINFORCING FOR A ROUND COLUMN ASSESSMENT CRITERIA NO. |MARK | CANDIDATE'S MARK 1 1 2 1 3 2 4 1 5 1 6 1 TOTAL:| 7 Copyright reserved

Civil Technology: Construction DBE/May/June 2024 SC/NSC Confidential [ CENTRE NUMBER: TTT TT TT 4 [EXAMINATIONNUMBER: | | | | | | | | | [| | | J | ANSWER SHEET 6.6 DIMENSION PAPER 6.6 6.6.1 6.6.2 (7) (4) Correct use of dimension paper (1) Copyright reserved