Civil Technology Grade 12 NSC November 2019 Memo (English)

Downloaded from hlayiso.com GRAAD 12 NATIONAL SENIOR CERTIFICATE GRADE 12 CIVIL TECHNOLOGY: WOODWORKING NOVEMBER 2019 MARKING GUIDELINES MARKS: 200 These marking guidelines consist of 19 pages. Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 2 DBE/November 2019 NSC – Marking Guidelines QUESTION 1: OHSA, SAFETY, MATERIALS, TOOLS, EQUIPMENT AND JOINING (GENERIC) 1.1 1.1.1 B (1) 1.1.2 I (1) 1.1.3 A (1) 1.1.4 G/H  (1) 1.1.5 C (1) 1.1.6 F (1) 1.1.7 J (1) 1.1.8 E (1) 1.2 Electroplating: • protects metals against corrosion.  • improves the engineering- and mechanical properties of metal.  • may be used to increase the thickness of undersized parts. • is decorative. • will extend the life span. ANY TWO OF THE ABOVE (2) 1.3 Curing  (1) 1.4 The moisture: • delays/prevents the rapid drying of fresh concrete. • prevents concrete from cracking.  • ensures that fresh concrete hardens properly. • allows adhesive bonding. • increases strength of fresh concrete. ANY ONE OF THE ABOVE (1) 1.5 • When material is transported in bulk, it must be secured firmly.  • When material is transported to higher levels, make sure that workers maintain a safe distance from the material being moved overhead.  • When heavy material is transported with a lift/hoist/machine, a qualified person must take charge of operations. • Wear appropriate personal protective equipment (PPE). • Material must be transported in a safe way. • Transport should not be overloaded with material. ANY TWO OF THE ABOVE (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 3 DBE/November 2019 NSC – Marking Guidelines 1.6 Scaffold planks should: • be made of a solid wood at least 228 mm wide and 38 mm thick.  • be able to support the load. • be free from defects. • not be painted as it will hide defects/be slippery. • be supported at distances not exceeding 1,25 m. • not project less than 70 mm and not more than 230 mm beyond the ends of the last prop. • be firmly secured to prevent its displacement. • be placed in such a way to prevent materials and tools from falling through. ANY ONE OF THE ABOVE (1) 1.7 1.7.1 Dumpy level  (1) 1.7.2 If the dumpy level is not set up level: • it will give inaccurate readings.  • wrong levels will be transferred. • true levels will not be transferred. ANY ONE OF THE ABOVE (1) 1.8 1.8.1 A – Plastic plug/Plug/Rawl plug/Fisher plug/Fibre plug  (1) 1.8.2 A screw  (1) 1.8.3 Plastic plugs are used to secure: • cupboards against a wall.  • mirrors against a wall. • portraits and similar objects against a wall. • objects, limited to certain weight, against walls. ANY ONE OF THE ABOVE (1) [20] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 4 DBE/November 2019 NSC – Marking Guidelines QUESTION 2: GRAPHICS AS MEANS OF COMMUNICATION (GENERICS) ANSWER SHEET 2 NO. QUESTIONS ANSWERS MARKS 1 Identify the elevation in FIGURE A. West Elevation  1 Identify the type of roof that is used 2 Hipped roof  1 on the building in FIGURE A. Ridge Capping/Ridge plate/Ridge 3 Identify number 1. 1 tile/Hip cap  Balcony/Floor slab of 4 Identify number 4. 1 balcony/Cantilever/Concrete slab  External door/Entrance 5 Identify number 5. 1 door/Door/Outside door  6 Identify number 7. Gutter  1 Rainwater down pipe/RWDP/Down 7 Identify number 8. 1 pipe  8 Identify number 12. Wash trough/Wash tub  1 9 Identify number 13. Built-in cupboard/BIC  1 10 Identify number 15. Landing  1 Identify the company that printed 11 Dlamini printers  1 the building plan. Name a suitable material that can Fibre cement/Galvanised sheeting/ 12 be used for the manufacturing of 1 Timber/Plastic/PVC/Polyvinylchloride number 2. Name the drawing symbol in the Electricity meter/Electrical meter/Watt 13 column for the notes in FIGURE 2 1 meter/Prepaid meter  that must be installed in the kitchen. Name the drawing symbol in the column for the notes in FIGURE 2 14 Face brick  1 that indicates the type of bricks for the building. Name a material that should NOT Steel/Mild steel/Iron/Ferrous 15 be used to manufacture the frame 1 metals  of number 9 for coastal areas. Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 5 DBE/November 2019 NSC – Marking Guidelines Name a material that can be used Stainless steel/Plastic/Ceramic/ 16 to manufacture the sanitary fitting Granite/Acrylic/Fibre 1 indicated by number 11. Glass/Concrete 17 Who checked the building plan? P Carter  1 How many types of windows are 18 2 1 used in FIGURE B? What does the abbreviation NGL at 19 Natural ground level  1 number 6 stand for? Give the reference code for this 20 QP 2-2019  1 plan. Which room will electrical symbol 21 Lounge  1 16 serve? Prevent people from falling off/through. 22 Describe the purpose of number 3. 2  Electrical wiring/Wiring/Electrical Explain what the curved lines cable/Wiring from light switch to 23 between the electrical installations 2 light/Shows which switch operates in FIGURE B indicate. which electrical fitting.  Explain why the light switch is To prevent steam/moisture entering 24 mounted on the outside of the the switch/To prevent electrical shock 1 bathroom. due to moisture/For safety purposes  Identify in FIGURE 2 which 25 North elevation  1 elevation does NOT have windows. Identify the thickness of the internal 26 110 mm  1 wall in FIGURE 2. 13 – Built-in cupboard: to store items.  Differentiate between symbols 13 27 15 – Landing: to rest/safety 2 and 15 in terms of their purpose. feature/change of direction of stairs  Ground floorplan: • does not indicate the roofline  • does not indicate the balcony • indicate an entrance door to the Justify why FIGURE B is a ground house 28 • indicate a step at the entrance 1 floor plan. door • the position of the windows and door correlate with the positions of the window and door on the west elevation Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 6 DBE/November 2019 NSC – Marking Guidelines Predict what will happen if number 10 Water/Damp will penetrate into the 29 1 is NOT installed. wall.   Redraw the staircase in FIGURE B in OR 30 the adjacent column and indicate the 2  direction of the flight with arrows. 220  + 2 600  + 110  + 3 400  + 220  = 6 550 mm or 6,55 m  IF INCORRECT METHOD IS USED TO CALCULATE THE ANSWER USE THE FOLLOWING SLIDING SCALE: Calculate the total length of the wall 31 on the eastern side of the building. • 4 MARKS WILL BE 6 Show ALL calculations. AWARDED IF ALL FIVE VALUES ARE CORRECT • 3 MARKS FOR FOUR VALUES CORRECT • 2 MARKS FOR THREE VALUES CORRECT • 1 MARK FOR 2 VALUES CORRECT TOTAL: 40 Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 7 DBE/November 2019 NSC – Marking Guidelines QUESTION 3: CASEMENTS, CUPBOARDS, WALL-PANELLING AND QUANTITIES (SPECIFIC) 3.1 3.1.1 16 mm  (1) 3.1.2 Skirting  (1) 3.1.3 7,5 m²  (1) 3.1.4 Mullion  (1) 3.2 3.2.1 • Transom  • Bottom rail of fanlight/ Bottom rail  • Top rail of casement/ Top rail  • Frame stile/Stile/Casement stile/Fanlight stile ANY THREE OF THE ABOVE (3) 3.2.2 Drip groove/Throat/Groove  (1) 3.3 A B C D 3.3.1 Area of roof sheeting needed: Width of the roof = 150 mm + 8 000 mm + 150 mm = 8 300 mm  Length of sheet =Length of rafter + overhang of  roof sheeting 2/ 8,3  = 2 900 mm + 50 mm = 2 950 mm  2,95  48,97 m2  NO UNIT IN FINAL ANSWER NO MARK (6) 3.3.2 Number of ridge plates needed: Length of one ridge plate = 1 800 mm Width of roof covering = 8 300 mm Number of ridge Width of roof covering = plates Length of one ridge plate 8,3  = 1,8  = 4,61 = 5  ridge plates of 1,8 m long are needed (3) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 8 DBE/November 2019 NSC – Marking Guidelines 3.4 ASSESSMENT MARK  CRITERIA Wall 1 Capping 1  Rough ground 1   Tongue and groove 1 board Correctness of drawing 1 TOTAL: 5 (5) Correctness  Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 9 DBE/November 2019 NSC – Marking Guidelines 3.5  DRAWERS CAN BE THE FULL WIDTH OR PLACED ON THE LEFT  SIDE. TWO SHELVES CAN ALSO BE ON  THE LEFT SIDE    ASSESSMENT CRITERIA MARK Top shelf (full width) 1 Intermediate side in middle 1 Hanging space on left side 1 Oval hanging rail 1 FOUR shelves 2 TWO drawer units below 1 shelving  Correctness of drawing 1 TOTAL: 8 Correctness  (8) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 10 DBE/November 2019 NSC – Marking Guidelines QUESTION 4: ROOFS, CEILINGS, TOOLS AND EQUIPMENT, AND MATERIALS (SPECIFIC) 4.1 4.1.1 A Jigsaw  B Lathe  (2) 4.1.2 •Clean the jigsaw blade after use. •Store in such a way that the blade is protected. •Use blade only for the intended purposes. •Do not force the jigsaw blade to cut through material. •Avoid the use of blunt saw blades. •Keep the power cord away from the blade. •Always plan your cuts carefully – make pre-cuts if necessary to prevent blade from breaking. • Use the correct blade for the specific work. • Check if the blade is tightly/correctly secured and is not bent. ANY TWO OF THE ABOVE (2) 4.1.3 •Always ensure that the work piece/stock is fastened tightly.  •Ensure that the work piece/stock moves freely.  •Ensure that the tool rest is locked as close as possible to the work piece/stock. ANY TWO OF THE ABOVE (2) 4.2 • Store the belt sander in a place where it cannot be damaged by dirt or dust.  • Store in a wooden box away from moisture. ANY ONE OF THE ABOVE (1) 4.3 • Strength  • Density  (2) 4.4 • Sand the wood surface with different grades of sandpaper  • Sand until the surface is smooth and free from scratches.  • Remove all dust.  (3) 4.5 • A conventional trapdoor can be removed/consists of a panel that can be pushed up  • Hinged trapdoor opens upwards/downwards by pivoting around the hinges.  (2) 4.6 Timber framework  Panel  Cover strip ANY TWO OF THE ABOVE (2) 4.7 King post: 114 mm x 38 mm  Brandering: 38 mm x 38 mm/38 mm x 50 mm  (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 11 DBE/November 2019 NSC – Marking Guidelines 4.8 Hurricane clips: • Securing purlins to rafters (roof truss)  • Securing trusses to wall plates • Ideally used at eaves overhangs • Where truss cross each other or where truss members cross each other or meet at 90° • To fix opposite faces of roof members. ANY ONE OF THE ABOVE Storm clips: • Securing roof tiles to the battens.  (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 12 DBE/November 2019 NSC – Marking Guidelines 4.9 RIDGE BEAM  228 mm x 38 mm   RAFTER  114 mm x 38 mm      WALL PLATE  TIE BEAM  114 mm x 38 mm 114 mm x 38 mm   SPAN 3 m WALL 220 mm   ASSESSMENT CRITERIA MARK Walls drawn correctly 2 Wall plates drawn correctly 2 Tie beam drawn correctly 2 Rafters drawn correctly 2 Scale  Ridge beam drawn correctly 2 Overhang drawn correctly 2 Labels (any TWO) 2 Span 1 Dimensions of members (any 2 TWO) Application of scale: ONE or TWO incorrect =3 THREE or FOUR incorrect = 2 3 More than FIVE incorrect = 1 NO measurement correct = 0 TOTAL: 20 DRAWING NOT TO SCALE A MASK MUST BE USED TO MARK THIS QUESTION (20) TOTAL [40] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 13 DBE/November 2019 NSC – Marking Guidelines QUESTION 5: CENTRING, FORMWORK, SHORING AND GRAPHICS AS MEANS OF COMMUNICATION (SPECIFIC) 5.1 5.1.1 Open laggings  (1) 5.1.2 Closed laggings  (1) 5.2 RIB     TIE/TIE BEAM  ASSESSMENT CRITERIA MARK Tie beam 1 Ribs 2 Two labels 2 Correctness of drawing 1 Correctness  TOTAL: 6 (6) 5.3 Steel/Metal/Hard board/Plywood/Fibre glass/Plastic  (1) 5.4 Releasing oil/Shuttering oil/Plastic  (1) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 14 DBE/November 2019 NSC – Marking Guidelines 5.5 SHUTTERING BOARD SIDE  CLEAT   STRUT/STAY    WEDGE BEARER/HEAD TREE  KICKER/FIXING PLATE FISHPLATE STRUT/BRACE PROP ASSESSMENT CRITERIA MARK Shuttering board side 1 Correctness  Cleat 1 Kicker/Fixing plate 1 Wedge 1 Stay/Strut 1 Any TWO labels 2 Correctness of drawing 1 TOTAL: 8 IF CANDIDATE DREW THE FULL DRAWING, MARK ONLY THE LEFT HAND SIDE. IF CANDIDATE DREW RIGHT SIDE ONLY, A MAXIMUM OF SEVEN MARKS WILL BE AWARDED. (8) 5.6 A - Needle/Cleat  B - Straining sill  C - Inclined strut/Raking strut/Strut  D - Horizontal shore/Shore  E - Folding wedge  F - Wall  (6) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 15 DBE/November 2019 NSC – Marking Guidelines 5.7      Scale  ASSESSMENT CRITERIA MARK Stile 1 Top rail 1 Haunch 3 Application of scale 1 TOTAL: 6 IF THE EXPLODED VIEW IS DRAWN A MAXIMUM OF 5 MARKS WILL BE (6) AWARDED. TOTAL 30 Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 16 DBE/November 2019 NSC – Marking Guidelines QUESTION 6: SUSPENDED FLOORS, STAIRCASES, IRONMONGERY, DOORS AND JOINING (SPECIFIC) 6.1 6.1.1 D (1) 6.1.2 D (1) 6.1.3 A (1) 6.1.4 A (1) 6.1.5 B (1) 6.2.1 Double bare face mortise and tenon joint  (1) 6.2.2 Framed ledge braced batten door.  (1) 6.3   (3) Doorframe     OR    Jamb lining ASSESSMENT CRITERIA MARK Frame profile of door 2 Jamb lining profile 3 Any title 1 (3) TOTAL: 6 Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 17 DBE/November 2019 NSC – Marking Guidelines 6.4      Correctness  ASSESSMENT CRITERIA MARK Muntin 1 Raised panels 2 Space for expansion and shrinkage 1 Hatching 1 Correctness of drawing 1 TOTAL: 6 (6) 6.5 • On a cupboard door  • On a drawer  (2) 6.6 Night latch  (NO BRAND NAMES ACCEPTED) (1) 6.7      Correctness  ASSESSMENT CRITERIA MARK Treads on each flight of stairs 2 Half-landing 1 Newel post 1 Open well 1 Correctness of drawing 1 TOTAL: 6 (6) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 18 DBE/November 2019 NSC – Marking Guidelines 6.8        AIR BRICK   ANT GUARD  DPC/DAMP PROOF COURSE Hatching  Correctness  ASSESSMENT CRITERIA MARK Bearer 1 Joists 2 Wall plate 1 Tongue and groove floorboard 1 Skirting 1 Quadrant 1 Hatching 1 Labels for: Ant guard 1 Air brick 1 DPC 1 Correctness of drawing 1 TOTAL: 12 (12) Copyright reserved

Downloaded from hlayiso.com Civil Technology: Woodworking 19 DBE/November 2019 NSC – Marking Guidelines       AIR BRICK ANT GUARD   DPC/DAMP PROOF  COURSE ANT GUARD DPC/DAMP PROOF COURSE Hatching  Correctness  ASSESSMENT CRITERIA MARK Bearer 1 Joists 2 Wall plate 1 Tongue and groove floorboard 1 Skirting 1 Quadrant 1 Hatching 1 Labels for: Ant guard 1 Air brick 1 DPC 1 Correctness of drawing 1 TOTAL: 12 (12) [40] TOTAL: 200 Copyright reserved