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

Sy (= x oul basic education Department: (@ i Basic Education REPUBLIC OF SOUTH AFRICA SENIOR CERTIFICATE EXAMINATIONS/ NATIONAL SENIOR CERTIFICATE EXAMINATIONS CIVIL TECHNOLOGY: CIVIL SERVICES 2023 MARKS: 200 TIME: 3 hours This question paper consists of 14 pages and 7 answer sheets. Copyright reserved Please turn over

Civil Technology: Civil Services 2 DBE/2023 SC/NSC REQUIREMENTS: 1. 2. 3. Drawing instruments A non-programmable calculator ANSWER BOOK INSTRUCTIONS AND INFORMATION 1. 2 3. 4 a o 7 N ® 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, 3.10, 4.9, 5.5, 6.3, 6.5 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: Civil Services 3 DBE/2023 SC/NSC QUESTION 1: 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 1.4.4 Identify THREE parts that have been omitted from the structure that will negatively impact on the safety of workers. (3) 1.1.2 Predict what could happen if the platform is used as shown in FIGURE 1.1. (2) 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. 1.2.1 Oil-based paint can be applied to protect ferrous metal against (shrinkage/rust/bending). (1) 1.2.2 Galvanising is the process to cover iron or steel with a layer of (aluminium/lead/zinc). (1) 41.2.3 The strength of concrete can be increased by (adding lime/keeping it moist/drying it quickly). : (1) 1.2.4 Electroplating is the process of coating (metal/lead/plastic) with a thin layer of another material. (1) 1.2.5 Powder coating is the process of applying a (plastic/aluminium/copper) finish in powder form. (1) Copyright reserved Please turn over

Civil Technology: Civil Services 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: Civil Services 5 SC/NSC DBE/2023 220 220 aL ie 3510 . 220 4110 oy 110 | BEDROOM 2 BEDROOM 1 M7 220 4820, _| 3.020 FIGURE A NOTES: Contractors must verify all dimensions and levels on site before commencing work. Architects to be notified immediately of any discrepancies. Wall thickness: External = 220 mm Internal = 110 mm Architect's signature Client's signature Concrete stairs according to the engineer's specifications. The ramp is finished off with paving. 3.200 | 220 —+-— KITCHEN LOUNGE ( oo} Al" T 2x40W GARAGE 220 FIGURE B DATE: REVISION 1 26/03/2023 DRAWING OF STAIRCASE DRAWING OF LIGHT FITTINGS DATE: REVISION - 2 28/03/2023 DATE OF PRINT: 30/03/2023 PRINTED BY: XENO PRINTERS DRAWING TITLE: FLOOR PLANS PLOT 48 PROJECT: PROPOSED DWELLING ON PLOT 48, BENONI DRAWING NO.: 226P7 PROJECT NO.: GR 488-820 CHECKED: PKRIEL DATE: 24/03/2023 DRAWN: KB BAM FLOOR PLANS SCALE 1: 100 REFERENCE CODE: QP 8— 2023 [40] Copyright reserved Please turn over

Civil Technology: Civil Services 6 DBE/2023 SC/NSC QUESTION 3: CONSTRUCTION ASSOCIATED WITH CIVIL SERVICES, OHSA AND QUANTITIES (SPECIFIC) Start this question on a NEW page. 3.1 Name the maximum thickness of soil layers when compaction is done by hand. (1) 3.2 Explain how the lid of a concrete ring manhole deeper than 750 mm should be set to ensure airtightness. (2) 3.3 Name the length of the engineered bricks that are used in manhole construction. (1) 3.4 Draw a two-dimensional sketch to show how the sides of excavations in loose and water-logged soil should be supported. (7) 3.5 Name the tool and accessory that can be used to test if the slope of a drain pipe is correct over a short distance. (2) 3.6 Who must monitor the free end of the rope attached to the safety harness of the worker? (1) 3.7 Explain TWO safety precautionary measures that must be taken before a worker enters a‘confined space to work. (2) 3.8 State TWO regulations that must be adhered to when working in elevated places. (2) 3.9 The internal measurement of the sides of a cubic water storage tank is 3 700 mm. Calculate the following. Show ALL calculations: 3.9.1 The volume of the tank in m? (4) 3.9.2 The volume of the tank in litres (2) 3.10 FIGURE 3.10 below shows the top view of a one-brick wall built in English bond. A FIGURE 3.10 3.10.1 Identify A. (1) 3.10.2 Use ANSWER SHEET 3.10. Project and draw, in good proportion, the FRONT VIEW of TWO consecutive brick courses. (6) [30] Copyright reserved Please turn over

Civil Technology: Civil Services DBE/2023 7 SC/NSC QUESTION 4: COLD AND HOT-WATER SUPPLY, TOOLS, EQUIPMENT AND MATERIALS (SPECIFIC) Start this question on a NEW page. 44 Choose a description from COLUMN B that matches an item in COLUMN A. Write only the fetter (A-L) next to the question numbers (4.1.1 to 4.1.8) in the ANSWER BOOK, e.g. 4.1.9M COLUMN A COLUMN B 4.1.1 Airlock A does not generate heat but moves the heat instead 4.1.2 Heat pump B sole purpose is to prevent water from 4.1.3. Pressure-control valve flowing back in the wrong direction 4.1.4 Vacuum breaker C hot-water outlet of a solar geyser 4.1.5 Stopcock D enables local authorities to calculate the amount of water 4.1.6 Thermostat Eto balance the water pressure of the 4.1.7 Solar geyser hot- and cold-water supply 4.1.8 Drip tray F regulates the heating of water inside the geyser G_used to close or shut off the water supply H_ the panels must face north | collecting and draining away water from a geyser J no hot water, only a spluttering K prevents the siphoning of water out of a geyser when cold water is shut off L _ self-sacrificing rod that protects the geyser (8x 1) Copyright reserved Please turn over (8)

Civil Technology: Civil Services 8 DBE/2023 SC/NSC 4.2 FIGURE 4.2 below is a picture of a device used in cold-water systems. B A Cc FIGURE 4.2 4.2.1 Name the device. 4.2.2 Identify A, B and C. 4.2.3 Explain what will happen to C when A is turned 90°. 4.2.4 What is the valve used for? 4.3 FIGURE 4.3 below shows a blocked sewer pipe. vs A | ©) /"———-WATER CLOSET OUTLET Cc B FIGURE 4.3 4.3.1 Name a non-electrical hand tool that can be used to unclog the sewer pipe. 4.3.2 Identify fittings A, B and C. 44 Differentiate between a compressed air test apparatus and a centrifugal pump in terms of their use. 4.5 There is a constant running of water into the water closet pan. Identify the possible problem. Copyright reserved Please turn over (1) (3) (1) (1) (1) (3) (2) (1)

Civil Technology: Civil Services 9 DBE/2023 SC/NSC 46 FIGURE 4.6 below shows a valve used in cold-water installation as a water- saving device. FIGURE 4.6 46.1 Name the valve. 46.2 Explain how this valve works. 47 Draw the following symbols that are used in hot-water systems: 4.7.1 Shower (movable) 4.7.2 Non-return valve 4.8 FIGURE 4.8 below shows a part in a solar water heater installation. A B NN c ™ FIGURE 4.8 4.8.1 Identify A, B and C. 4.8.2 What could be a clear sign that part A is malfunctioning? 49 ANSWER SHEET 4.9 shows an incomplete drawing of a high-pressure geyser installed vertically against a wall without the cold- and hot-water pipes and components. Draw the correct installation of the cold- and hot-water pipes and indicate the direction of the flow of water with the TWO vacuum breakers. Copyright reserved Please turn over (1) (2) (2) (2) (3) (2) (7) [40]

Civil Technology: Civil Services 10 DBE/2023 SC/NSC QUESTION 5: GRAPHICS AS MEANS OF COMMUNICATION, ROOF WORK AND STORM WATER (SPECIFIC) Start this question on a NEW page. 5.1 5.2 5.3 5.4 5.5 Copyright reserved Describe TWO factors that must be determined before installing the flashing for a ventilation pipe on a pitched roof. Discuss TWO regulations that must be adhered to when artificial storm-water channels connect with open natural channels. By means of neat freehand sketches, differentiate between the top/plan views of a rectangular and a round gutter outlet. Name the component that can be used to secure the downpipe of a gutter to a wall. ANSWER SHEET 5.5 shows the front view and top view of a square-based truncated pyramid. Use the views and information given and draw the development of the pyramid. Start the development at A. The pyramid has a 3-mm seam on both sides. Show ALL construction and projection lines. Please turn over (2) (2) (4) (1) (21) [30}

Civil Technology: Civil Services 11 SC/NSC DBE/2023 QUESTION 6: SEWERAGE, SANITARY FITTINGS AND JOINING (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 6.1.5 Copyright reserved ... decompose the solid matter in a septic tank. A B Cc D Hydrochloric acid Viruses Bacteria Water The septic tank consists of two chambers that are called the ... A settling and discharge chambers. B Cc D_ bacteria and sludge chambers. inspection and soil chambers. soil and water chambers. Which ONE of the following is the acceptable slope for a 110 mm diameter sewer pipe? A B Cc D The ... allows gases to escape from a sewer system. A B c 1:75 1: 100 1:20 None of the above-mentioned manhole vent pipe gully rodding eye ... is the colour used to indicate soil water pipes on a drainage plan. Green Brown Blue Orange Please turn over (1) (1) (1) (1) (1)

Civil Technology: Civil Services 12 DBE/2023 SC/NSC 6.2 FIGURE 6.2 below shows a water closet pan. 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.2.6 Copyright reserved C J FIGURE 6.2 Name the unit that supplies water to the water closet pan. Name the pipe that comes from the water supply unit and joins the water closet pan at A. What component is used at A to prevent leaks? Name the PVC fitting that is used at B to connect the water closet pan to the sewer pipe. State ONE material that is used to manufacture the water closet pan. Name ONE fixing agent that can be used to attach the water closet pan to a floor. Please turn over (1) (1) (1) (1) (4) (1)

Civil Technology: Civil Services 13 DBE/2023 SC/NSC 6.3 FIGURE 6.3 below shows the section through a 110 mm diameter PVC pipe and a 110 mm PVC socket. The PVC socket is on ANSWER SHEET 6.3. Complete the drawing by joining the PVC pipe to the socket and showing the solvent welding. " A Le FIGURE 6.3 ° 6.4 FIGURE 6.4 below shows a horizontal sectional view of a vacuum tank. A _|_ ROAD Q KERB B FIGURE 6.4 6.4.1 Identify the type of wall finish at A. (1) 6.4.2 Describe ONE reason for the type of wall finish at A. (1) 6.4.3 Identify B. (1) 6.4.4 Explain why component B is located close to the road kerb. (1) Copyright reserved Please turn over

Civil Technology: Civil Services 14 DBE/2023 SC/NSC 6.5 FIGURE 6.5 on ANSWER SHEET 6.5 shows the outline of a French drain. Use ANSWER SHEET 6.5 and draw a complete French drain. Print ALL labels. (6) 6.6 FIGURE 6.6 below shows the INCORRECTLY drawn sewerage plan of a dwelling. Identify THREE errors in the sewerage plan and give a reason for each error. © MUNICIPAL CONNECTION fe a | 4){|2 REO ! LS | (6) FIGURE 6.6 6.7 ANSWER SHEET 6.7 shows a building with an incomplete sewerage layout. Use ANSWER SHEET 6.7 and design and draw the sewerage plan. (10) [40] TOTAL: 200 Copyright reserved

Civil Technology: Civil Services DBE/2023 SC/NSC [| CENTRE NUMBER: [ | 1 J | EXAMINATION NUMBER: | | | | el 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 41 number of windows in the building. 3 | Identify number 1. 1 4 | Identify number 2. 4 5 | Identify number 6. 1 6 | Identify number 8. 1 7 | Identify number 9. 1 8 | Identify number 10. 1 9 Identify the number that indicates the 4 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: Civil Services DBE/2023 SC/NSC | CENTRE NUMBER: [ [| [| ] LJ] ] [EXAMINATION NUMBER: | | | | | | | ] Give the abbreviations for the Number 3: following: ene a Number 3 Number 4: 2 e Number 4 umber & 13 Describe the purpose of a two-way 2 switch. 14 Recommend an appropriate floor 7 covering for the kitchen. 15 Who was responsible for the checking 1 of the drawing? 16 Deduce ONE fault in the bathroom in 1 FIGURE A. Name an alternative light source that 17 | can be used during load shedding for 1 a dwelling. Revision 1: 18 State what was done during revision 1 evision 2 and revision 2 of the house plan. _ Revision 2: 19 Name the finish for the ramp as 1 prescribed by the architect. 20 Draw the symbol for a damp-proof 2 membrane. 21 | Draw the symbol for finished wood. 2 22 | Draw the symbol for hardcore filling. 2 Copyright reserved

Civil Technology: Civil Services | CENTRE NUMBER: LJ [ I 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: Civil Services DBE/2023 TOP VIEW SC/NSC | CENTRE NUMBER: Litt IL Id | EXAMINATION NUMBER: | | LT] [ [ L | ANSWER SHEET 3.10 FIGURE 3.10 ASSESSMENT CRITERIA |MARK| CM Correctness of brick courses 1 Members 4 TOTAL:| 5 Copyright reserved

Civil Technology: Civil Services DBE/2023 [ CENTRE NUMBER: [TTT I |] [EXAMINATIONNUMBER: | | | | | L [J |] ANSWER SHEET 4.9 WALL WALL-MOUNTED GEYSER WALL ASSESSMENT CRITERIA | MARK | CM Correctness of layout 4 Members 6 TOTAL: | 7 Copyright reserved

Civil Technology: Civil Services SC/NSC | CENTRE NUMBER: l DBE/2023 | EXAMINATION NUMBER: | ANSWER SHEET 5.5 ASSESSMENT CRITERIA | MARK | CM Correctness of drawing 21 TOTAL: 21 Copyright reserved

Civil Technology: Civil Services [ CENTRE NUMBER: TT I DBE/2023 [EXAMINATION NUMBER: | |_| | ANSWER SHEET 6.3 ASSESSMENT CRITERIA MARK | CM Correctness of joining pipe and socket 1 Welding solvent 2 TOTAL: 3 Copyright reserved I I Ul Ul I Ul Ul it Ul I ' 1

Civil Technology: Civil Services DBE/2023 SC/NSC [CENTRE NUMBER: TT TT [Tt 7 [EXAMINATIONNUMBER: | | | | | | | [| [| [| | | [ | ANSWER SHEET 6.5 { | LJ ASSESSMENT CRITERIA | MARK | CM Correctness of French drain 4 Members 5 TOTAL: 6 Copyright reserved

Civil Technology: Civil Services DBE/2023 SCINSC | CENTRE NUMBER: [TT TTT Ty [EXAMINATIONNUMBER: | | | | | | | | | [| | | [| 4 ANSWER SHEET 6.7 MUNICIPAL CONNECTION | O —- £ = [o) [e} ASSESSMENT CRITERIA | MARK | CM Correctness of drawing 10 TOTAL: 10 Copyright reserved