Civil Technology Grade 12 NSC June 2023 Question Paper (Eng)

basic education Department: Basic Education REPUBLIC OF SOUTH AFRICA SENIOR CERTIFICATE EXAMINATIONS/ NATIONAL SENIOR CERTIFICATE EXAMINATIONS CIVIL TECHNOLOGY: CONSTRUCTION 2023 MARKS: 200 TIME: 3 hours This question paper consists of 13 pages and 7 answer sheets. Copyright reserved Please turn over

Civil Technology: Construction 2 DBE/2023 SC/NSC REQUIREMENTS: 1. 2. 3. Drawing instruments A non-programmable calculator ANSWER BOOK INSTRUCTIONS AND INFORMATION 1. - Yo N a o ON ® 11. 12. 13. 14. 15. 16. 17. 18. 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, 3.3, 3.4, 4.9, 5.7, 6.6 and 6.7 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. Copyright reserved Please turn over

Civil Technology: Construction 3 DBE/2023 QUESTION 1: SC/NSC OHSA, MATERIALS, TOOLS, EQUIPMENT AND JOINING (GENERIC) Start this question on a NEW page. 1.1 FIGURE 1.1 below shows a temporary platform that is currently not suitable for use in the building environment. FIGURE 1.1 1.4.41 Identify THREE parts that have been omitted from the structure that will negatively impact on the safety of workers. 4.1.2 Predict what could happen if the platform is used as shown in FIGURE 1.1. 1.2 Choose the correct word(s) from those given in brackets. Write only the word(s) next to the question numbers (1.2.1 to 1.2.5) in the ANSWER BOOK, e.g. 1.2.6 casement. 1.24 1.2.2 1.2.3 1.2.4 1.2.5 Copyright reserved Oil-based paint can be applied to protect ferrous metal against (shrinkage/rust/bending). Galvanising is the process to cover iron or steel with a layer of (aluminium/lead/zinc). The strength of concrete can be increased by (adding lime/keeping it moist/drying it quickly). Electroplating is the process of coating (metal/lead/plastic) with a thin layer of another material. Powder coating is the process of applying a (plastic/aluminium/copper) finish in powder form. Please turn over (3) (2) (1) (1) (1) (1) (1)

Civil Technology: Construction 4 DBE/2023 1.3 1.4 1.5 1.6 1.7 1.8 SC/NSC Explain why it is advisable to keep the height of the guard rails between 900 to 1 000 mm above the scaffold working platform. (1) Describe ONE precaution that must be adhered to when storing a ladder. (1) Workers and materials are in a builder's hoist. Describe ONE check that the operator needs to perform before the builder's hoist moves. (1) Explain why the fire-fighting measures must be stated in the material safety data sheet of hazardous chemical substances. (1) FIGURE 1.7 below shows joining fixtures. FIGURE 1.7 Identify A to D. (4) A new building is being erected. Name the tool that can be used to: 1.8.1 Check if the height of doors and windows is at the same level (1) 1.8.2 Measure levels and slopes (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 5 DBE/2023 SC/NSC NOTES: 20 77 a 220 Contractors must verify all 4110 3510, dimensions and levels on site a af before commencing work. Architects to be notified immediately of any discrepancies. fo} N “I Wall thickness: External = 220 mm < — Internal = 110 mm © ol oO wy N ® = Architect's signature ................. 7 Client's signature ........0.....0...6 - c=] Q Oo o BEDROOM 2 BEDROOM 1 Concrete stairs according to the Sn oo engineer's specifications. fo} - . iy q The ramp is finished off with 4820 _, 3.020 paving. FIGURE A REVISION | DATE: DRAWING 1 26/03/2023 OF = 5.060 “f STAIRCASE 220 a 220 220 REVISION DATE: BRAING 4200 | _ 3.200 : 28/03/2023 | LiGHT | FITTINGS P @ Nn PRINTED BY: DATE OF PRINT: x ‘ _— XENO PRINTERS 30/03/2023 y XI | d DRAWING TITLE: Fa FLOOR PLANS PLOT 48 ‘| LOUNGE ( 7 PROJECT: 3 PROPOSED DWELLING ON PLOT 48, g ‘ , 3 Onn 2x40W BENONI 3 PROJECT NO.: DRAWING NO.: ie KITCHEN GARAGE GR 488-820 226P7 1 | Md . Gi Ss +——_{7) DATE: DRAWN: | CHECKED: io 24/08/2023 | KBBAM P KRIEL So Qo 8 a9 | —_o ca FLOOR PLANS SCALE 1 : 100 ® &B REFERENCE CODE: FIGURE B aad [40] | Copyright reserved Please turn over

Civil Technology: Construction 6 DBE/2023 SC/NSC QUESTION 3: ROOFS, STAIRCASES AND JOINING (SPECIFIC) Start this question on a NEW page. 3.1 Differentiate, by means of a labelled freehand drawing, between a tread and rise of a staircase. (4) 3.2 Name TWO types of roof trusses that do NOT use tie beams. (2) 3.3 Use ANSWER SHEET 3.3 and complete the sketch to show how a roof truss is joined to a wall by using a hoop iron strap. Print any ONE label. (8) 3.4 Use ANSWER SHEET 3.4 and differentiate, according to scale 1 : 10, between the ridge construction of a South African (Howe) roof truss and the ridge construction of a closed couple roof truss. The pitch of the roofs is 30°. (16) [30] Copyright reserved Please turn over

Civil Technology: Construction QUESTION 4: EXCAVATIONS, MATERIALS (SPECIFIC) Start this question on a NEW page. DBE/2023 SC/NSC FORMWORK, TOOLS, EQUIPMENT AND 41 Choose a description from COLUMN B that matches an item in COLUMN A. Write only the letter (A-L) next to the question numbers (4.1.1 to 4.1.8) in the ANSWER BOOK, e.g. 4.1.9 M. COLUMN A COLUMN B 4.1.1 Soffit board spaced approximately 1 m apart 4.1.2 Cleat applied to inside of formwork to ease the striking 4.1.3 Tie member that keeps the sides of 4.1.4 Brace/Strut formwork in place 4.1.5 Fixing plate used to level the formwork 4.1.6 Props not adaptable or available in specific sizes 4.1.7 Folding wedges an anchor that prevents the bottom 4.1.8 Releasing oil/Form oil of the cleats from moving diagonal member of formwork for a concrete beam it can be placed 4 m apart prevents the top of shutter board sides from deforming close-fitting along seams and joints base of formwork that carries the load of wet concrete applied to the outside of the formwork for striking (8x1) (8) 4.2 Name ONE property of EACH of the following: 4.2.1 4.2.2 4.2.3 Copyright reserved Galvanised sheet metal Low-carbon steel High-carbon steel (1) (1) (1) Please turn over

Civil Technology: Construction 8 DBE/2023 4.3 44 4.5 46 47 SC/NSC Name THREE methods of fixing cladding to a wall. FIGURE 4.4 below shows the outcome of a test carried out on concrete. FIGURE 4.4 4.4.1 Name the type of test that was carried out on the concrete. 442 Identify the outcome of the test. 4.43 Explain the reason for the outcome. Name THREE services that should be located before excavations start. Predict what would happen if heavy rain occurs during the excavation of a trench. Explain why a worker is not allowed to work alone in an excavation. Copyright reserved Please turn over (3) (1) (1) (1) (3) (2) (1)

Civil Technology: Construction 9 DBE/2023 SC/NSC 48 FIGURE 4.8 below shows a construction machine that is used when laying paving. FIGURE 4.8 4.8.1 Identify this machine. (1) 4.8.2 Describe how you should operate this construction machine without injuring yourself. (2) 4.9 FIGURE 4.9 on ANSWER SHEET 4.9 shows an incomplete drawing of the formwork for a concrete beam with a concrete floor slab on the LEFT SIDE. Use ANSWER SHEET 4.9 and draw the completed formwork for the beam and floor slab. Copyright reserved (14) [40] Please turn over

Civil Technology: Construction 10 DBE/2023 SC/NSC QUESTION 5: PLASTER AND SCREED, BRICKWORK AND GRAPHICS AS MEANS OF COMMUNICATION (SPECIFIC) Start this question on a NEW page. 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Recommend the ratio that will be used to obtain a smooth plaster finish for interior walls, using one bag of cement. In chronological order, explain the first THREE steps to prepare a concrete floor to receive the screed. Explain the term monolithic screed. Explain how you will plaster the stop end of a wall in chronological order. State TWO advantages of a gauged arch. Draw in the ANSWER BOOK a neat sketch showing half of a wooden turning piece for a semi-circular arch with open laggings. ANSWER SHEET 5.7 shows the outlines of two consecutive brick courses of a one-and-a-half-brick pier built in English bond. Use ANSWER SHEET 5.7 and complete the pictorial views of the consecutive brick courses. Copyright reserved Please turn over (2) (3) (1) (4) (2) (4) (14) [30]

Civil Technology: Construction 1 QUESTION 6: SC/NSC DBE/2023 REINFORCEMENT IN CONCRETE, FOUNDATIONS, CONCRETE FLOORS AND QUANTITIES (SPECIFIC) Start this question on a NEW page. 6.1 Various options are given as possible answers to the following questions. Choose the answer and write only the letter (A-D) next to the question numbers (6.1.1 to 6.1.5) in the ANSWER BOOK, e.g. 6.1.6 D. 6.1.1 6.1.4 6.1.5 Copyright reserved Pri A B Cc D e-cast piling can be used in ... stable ground. constantly wet areas. dry areas. None of the above-mentioned The equipment for the installation of piles can be mounted on ... > when 2 DOW>r oo trucks. cranes. pick-up trucks. A and B only round. drop club claw sledge A pile foundation is used to ... whens float on the ground as one concrete unit. support light loads. distribute the load across to more stable ground. construct the foundation in a series of steps. ... is not a category of pile foundations. DODY Pre-cast concrete piles Long-bored piles Driven in-situ piles Steel-tube caisson piles . hammer can be used to drive a pre-cast concrete pile into the Please turn over (1) (1) (1) (1) (1)

Civil Technology: Construction 12 SC/NSC DBE/2023 6.2 Draw in your ANSWER BOOK a neat freehand sketch of the concrete plug of an enlarged base when installing driven in-situ piles. Indicate the symbol for concrete in the enlarged base. 6.3 Name the different components that a rib and block floor consists of. 6.4 Predict what could happen if the temporary props are removed a day after the concrete has been cast on the rib and block floor. 6.5 Reinforcement is indicated on construction drawings with a code. Explain the meaning of these sections in the following code: 4 R 20 03 250 6.5.1 4 6.5.2 20 6.5.3 250 6.6 FIGURE 6.6 on ANSWER SHEET 6.6 shows the outline of three sides of an L-shaped concrete column. Use ANSWER SHEET 6.6 and draw a neat sectional view of the L-shaped reinforced concrete column with 8 main bars, stirrups and minimum concrete cover. Print any TWO labels and indicate the minimum concrete cover. Copyright reserved Please turn over (5) (4) (1) (1) (1) (1) (12)

Civil Technology: Construction 13 SC/NSC DBE/2023 6.7 FIGURE 6.7 below shows the floor plan of a building with a window and a door. 6 000 7 000 FIGURE 6.7 Use the following specifications: e The blinding layer is 40 mm thick . The wall thickness is 220 mm Use the dimension paper on ANSWER SHEET 6.7 and calculate the volume of the blinding layer. Round off your answers to TWO decimals. NOTE: Marks will be awarded for the correct use of the dimension paper. Copyright reserved TOTAL: (9) (1) [40] 200

Civil Technology: Construction SCINSC | CENTRE NUMBER: [| | T J DBE/2023 | EXAMINATION NUMBER: |__| [| ANSWER SHEET 2 NO. QUESTIONS ANSWERS MARKS Name the FIGURE that represents the 1 | first floor. Give ONE reason for your 2 answer. 2 | Deduce from the building plan the 4 number of windows in the building. 3 | Identify number 1. 1 4 | Identify number 2. 1 5 | Identify number 6. 1 6 | Identify number 8. 4 7 | Identify number 9. 1 8 | Identify number 10. 1 9 Identify the number that indicates the 1 garage door. 40 Deduce from the building plan the 1 omitted dimension of number 11. Deduce from the building plan the 11. | material that must be used for 1 number 5. Copyright reserved

Civil Technology: Construction DBE/2023 SC/NSC | CENTRE NUMBER: | | [ |] L [4 [EXAMINATIONNUMBER: | | | | L [|] | Give the abbreviations for the Number 3: following: umber ¥: 12 e Number 3 Number 4: e Number 4 umber &: 13 Describe the purpose of a two-way switch. 14 Recommend an appropriate floor covering for the kitchen. Who was responsible for the checking 15 i of the drawing? 16 Deduce ONE fault in the bathroom in FIGURE A. Name an alternative light source that 17 | can be used during load shedding for a dwelling. . a Revision 1: 18 State what was done during revision 1 and revision 2 of the house plan. _ Revision 2: 19 Name the finish for the ramp as prescribed by the architect. 20 Draw the symbol for a damp-proof membrane. 21 | Draw the symbol for finished wood. 22 | Draw the symbol for hardcore filling. Copyright reserved

Civil Technology: Construction SC/NSC [ CENTRE NUMBER: [ | J] J | DBE/2023 [EXAMINATION NUMBER: | | |_| 23 Prove, by means of a control test, that the total horizontal dimensions on the top and bottom of the plan in FIGURE A are the same. 24 Calculate the area of the floor plan in FIGURE B. Show ALL the calculations. Give your answer in m?. Round off your answers to TWO decimal places. TOTAL: 40 Copyright reserved

Civil Technology: Construction | CENTRE NUMBER: [LT] [J DBE/2023 [EXAMINATION NUMBER: | | | | |_| ANSWER SHEET 3.3 Copyright reserved LAL ASSESSMENT CRITERIA MARK cM Correctness of joining Members Any ONE label TOTAL: Nisloj|o

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Civil Technology: Construction DBE/2023 SC/NSC | CENTRE NUMBER: LT] [ 7 TT [7 J | EXAMINATION NUMBER: | |_| [| [ J LT [| [| 7] [ ] ANSWER SHEET 4.9 | Sen fo] a Xd °o o 346] gic oo o 0 FIGURE 4.9 ASSESSMENT CRITERIA MARK | CM Correctness of formwork 2 Members 12 TOTAL: | 14 Copyright reserved

Civil Technology: Construction DBE/2023 SC/NSC | CENTRE NUMBER: | | [| [ J lL] [EXAMINATIONNUMBER: | | | [| | L [| 1 ] L [J ANSWER SHEET 5.7 ASSESSMENT CRITERIA MARK | CM Correctness of courses 2 First course 6 Second course 6 TOTAL: 14 Copyright reserved

Civil Technology: Construction DBE/2023 SC/NSC [CENTRE NUMBER: LT TT Tt 4] [EXAMINATIONNUMBER: | | | | | | | | ANSWER SHEET 6.6 ASSESSMENT CRITERIA MARK CM Correctness of L-shaped column 2 Completed column and members 8 Any TWO labels 2 TOTAL: 12 Copyright reserved

Civil Technology: Construction | CENTRE NUMBER: I DBE/2023 [ EXAMINATION NUMBER: | ANSWER SHEET 6.7 DIMENSION PAPER A c D (Correct use of dimension paper (1) (9) Copyright reserved