Civil Technology Grade 12 NSC June 2019 Memo (English)

Downloaded from hlayiso.com SENIOR CERTIFICATE EXAMINATION/ NATIONAL SENIOR CERTIFICATE EXAMINATION CIVIL TECHNOLOGY: WOODWORKING 2019 MARKING GUIDELINES MARKS: 200 These marking guidelines consist of 16 pages. Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 2 DBE/2019 SC/NSC – Marking Guidelines QUESTION 1: OHSA, SAFETY, MATERIALS, TOOLS, EQUIPMENT AND JOINING (GENERIC) 1.1 1.1.1 G (1) 1.1.2 E (1) 1.1.3 A (1) 1.1.4 C (1) 1.1.5 D (1) 1.2 • When heavy materials/loads are not lifted/lowered/handled correctly.  • Wrong posture when lifting materials. • Not using safety apparel. ANY ONE OF THE ABOVE (1) 1.3  1 : 4 OR 76° (2) 1.4 • A qualified person must operate the device.  • The device must never be overloaded.  • The gates and wire components of the lift of the hoisting device must be at least 1 980 mm high. • The gates must be shut when the device is being used. • Emergency brake mechanisms must be installed. • Safety measures must be displayed inside the cage. • Inspections and maintenance work should be carried out regularly (at least six-monthly) by qualified persons. • Overhead protection must be provided to protect workers from falling objects. • When material or equipment is being hoisted, it must be stacked firmly and correctly, and secured properly. • The hoist must be inspected weekly by a qualified person. ANY TWO OF THE ABOVE (2) 1.5.1 A = Laser level  B = Dumpy level  (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 3 DBE/2019 SC/NSC – Marking Guidelines 1.5.2 Laser level (A) Dumpy level (B) To determine levels when: The dumpy level is used • installing ceilings and floor tiles.  when: • installing chair rails for example in • determining differences a dining room. between levels and • installing receptacles for power vertical heights, inside a building during especially over longer construction. distances  • hanging pictures. • determining levels and • excavating for new buildings. slopes. • aligning and levelling floors. • setting out buildings • when installing doors and windows. • transferring levels and • aligning shelves and cabinets. heights. • levelling post and beams on decks, • determining/measuring fences and porches. the distances/ • setting out buildings on a site. between two points. • aligning fences, post and decks. • determining gradient/slope for drainage and irrigation. • establishing contours for farming or drainage. • To determine levels and slopes when installing sewer pipes. ANY ONE IN EACH COLUMN ABOVE (2) 1.6 1.6.1 Rawl bolt  (1) 1.6.2 A – Drill a hole of the required diameter and depth.  B – Remove debris and thoroughly clean the hole with a brush or by blowing into it.  C – Remove the bolt and washer, insert the sleeve/shield into the hole and align the fixture (for example base plate, etc…) with the hole.  D – Insert the bolt with washer through the fixture and tighten to the recommended torque.  (4) 1.6.3 Rawl bolts: • are stronger fasteners than a screw with a plastic plug.  • are designed to resist pull-out failure. • have excellent mechanical properties such as tensile and yield stress. • have excellent carrying capacity. • have excellent tolerance to variance in the hole size. ANY ONE OF THE ABOVE (1) [20] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 4 DBE/2019 SC/NSC – Marking Guidelines QUESTION 2: GRAPHICS AS MEANS OF COMMUNICATION (GENERIC) ANSWER SHEET 2 NO. QUESTIONS ANSWERS MARKS 1 Identify the elevation shown in Eastern/East elevation/East 1 FIGURE A. 1 2 Name the scale of FIGURE B. 1 : 100  1 3 Identify number 1. Barge board  1 4 Identify number 2. Roof overhang/Eave/Open eave  5 Recommend a suitable finish for Plaster/Paint/Face brick/Tiles/ number 3. 1 Cladding  6 What is indicated by number 4? Door/Entrance door/Door opening  1 7 Identify the drawing symbol indicated Finished floor level/FFL  by number 5. 1 8 Identify the drawing symbol indicated Natural ground level/NGL  1 by number 6. 9 What is indicated by number 7? Step  1 10 Give the date on which the building 1 plan was printed. 2019/06/16  1 11 Who checked the building plan? P Blade  12 Name the electrical drawing symbol Two-way switch  in the column for the notes in 1 FIGURE 2 that must be placed at a staircase. DO NOT MARK THESE QUESTIONS 13 Name the electrical feature in the column for the notes in FIGURE 2 Wall light  1 that must be placed at the entrance door of the house. Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 5 DBE/2019 SC/NSC – Marking Guidelines 14 Identify the type of roof that is used on the building in Gable roof  1 FIGURE A. 15 Explain the purpose of number 1. To cover ends of purlins/battens/fixed to the purlins/battens for a neat appearance. 1 To finish of the gable end of the roof.  16 Who is the owner of this house? Mr H Smith  1 17 In which street is the proposed Jupiter street  1 dwelling situated? 18 Identify number 8. Rainwater down pipe/Downpipe  1 19 To wash your face/Body  What is the sanitary fitting Brush your teeth 1 indicated by number 9 used for? Wash your hands Washing/Rinsing 20 Recommend an alternative sanitary fitting to replace Bath  1 number 10 that will serve a similar purpose. 21 Explain the purpose of number 11 Landing to serve as resting place or 1 as indicated on the staircase. change of direction of staircase.  22 Emergency light/External light What is indicated by number 13? 1 Thickness of wall/110 mm  23 What is indicated by number 15? North- symbol/direction/point  1 24 Deduce the height of window 1 1,8 m or 1 800 mm  1 from the window schedule. 25 Deduce the width of window 2 2,4 m or 2 400 mm  1 from the window schedule. 26 Name the elevations of the building on which the staircase is Western/West elevation/West  2 situated. Southern/South elevation/South  Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 6 DBE/2019 SC/NSC – Marking Guidelines 27 12 – One way light switch single pole/ Differentiate between the electrical symbols indicated by lever  2 numbers 12 and 14. 14 – One way light switch double pole/ lever  28 Recommend a suitable floor Tiles/Novilon/Carpets/Laminated 1 covering for the lounge. flooring/Wooden flooring. 29 Calculate the area of the lounge 6 m  x 3 m  = 18 m²  in m². Show ALL calculations. OR 3 6 000 mm x 3 000 mm = 18 m² 30 Calculate the perimeter of the (220 + 3 000 + 110 + 3 000 + 220)  x 2  building. Show ALL calculations. = 6 550 x 2 =13 100 mm  (220 + 6 000 + 220)  x 2  = 6 440 x 2 7 = 12 880 mm  13 100 + 12 880 = 25 980 mm  OR = 25,98 m TOTAL: 40 Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 7 DBE/2019 SC/NSC – Marking Guidelines QUESTION 3: CASEMENTS, CUPBOARDS, WALL-PANELLING AND QUANTITIES (SPECIFIC) 3.1 Glazing bar  (1) 3.2 A – Frame head  B – Transom  C – Mullion  D – Casement stile  E – Bottom rail of casement/Bottom rail  (5) 3.3     ASSESSMENT CRITERIA MARK CM Front rail 1  Top shelf 1 Middle shelf 1 Bottom shelf 1 Hanging rail 1 Kick plate 1 Back of base 1 Back of cupboard 1 Application of scale: Correct height 1 Correct depth 1 Correct thickness of material 1 TOTAL: 11 SCALE:     USE A MASK TO MARK THE DRAWING (11) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 8 DBE/2019 SC/NSC – Marking Guidelines 3.4 TONGUE AND GROOVE  BOARD  ROUGH GROUNDS SKIRTING    QUADRANT MOULD Application of scale  ASSESSMENT CRITERIA MARKS CANDIDATE'S MARK Horizontal rough grounds 2 Tongue and groove board 1 Skirting 1 Quadrant mould 1 Application of scale 1 More than 3 wrong no marks. TOTAL: 6 Marks are awarded for the drawing and not for labels. USE A MASK TO MARK THE DRAWING (6) 3.5 A B C D 3.5.1 Length of fascia board = 9 000 mm + 300 mm + 9 000 mm + 300 mm  OR (9 000 mm + 300 mm) x 2 OR (150 + 9000 +150) x 2 = 18 600 mm = 18,6 m  (2) 3.5.2 Number of roof trusses needed Internal dimension +1 Distance between centres 8,56  +1 1,3  = 6,58 + 1  = 7+1 = 8 Roof trusses  (5) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 9 DBE/2019 SC/NSC – Marking Guidelines QUESTION 4: ROOFS, CEILINGS, TOOLS AND EQUIPMENT, AND MATERIALS (SPECIFIC) 4.1 4.1.1 B (1) 4.1.2 F (1) 4.1.3 D (1) 4.1.4 E (1) 4.1.5 C (1) 4.2       Application of scale  USE A MASK TO MARK THIS QUESTION ASSESSMENT CRITERIA MARK Fascia board: 230 mm x 38 mm 1 Hanger: 38 mm x 38 mm 1 Bearer: 38 mm x 38 mm 1 6 mm fibre-cement board on closed 1 eaves Quarter round mouldings below 2 fibre-cement board Application of scale 1 More than 3 wrong no marks. TOTAL: 7 (7) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 10 DBE/2019 SC/NSC – Marking Guidelines 4.3 Hipped roof Gable roof MATERIAL More timber is used Less timber is used because of the complex because of simple design design of the roof   More roof covering is used Less roof covering is used More cutting and waste Less cutting and waste CONSTRUCTION Slope down on all Slope down on only two sides  sides  The construction is Simple design complex Roof not as strong Roof is stronger because less timber is Roof takes longer to used construct Constructed faster ANY ONE OF THE ABOVE FOR EACH CRITERION IN EACH COLUMN (4) 4.4 • Gang nails  • Bolt and nuts  • Nails  (3) 4.5 • Aluminium frames/Timber frames • Cover strip/T-metal strip  • Hinges • Barrel bolt ANY TWO OF THE ABOVE (2) 4.6 610 mm x 610 mm  (1) 4.7 4.7.1 Portable electrical planer  (1) 4.7.2 • Safety goggles  • Dust  • Respiratory mask ANY TWO OF THE ABOVE (2) 4.7.3 • Store in a dry safe place. • Keep in a wooden box or plastic box away from moisture. • Store the plane on its side to prevent damage to the blade. • Retract the blade into the machine. ANY TWO OF THE ABOVE (2) 4.7.4 Check the timber for: • Loose knots  • Sand  • Nails/Screws/Any metal objects in the timber ANY TWO OF THE ABOVE (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 11 DBE/2019 SC/NSC – Marking Guidelines 4.8 4.8.1 • Avoid making adjustments while the blade is turning.  • Keep your hands and fingers away from rotating blade.  • Ensure all clamps and locking devices are locked.  • Check the wood for loose knots/nails/screws. • Ensure that the machine stands in a well-balanced position. • Ensure the blade is properly fastened. • Do not leave the machine until the blade has stop turning. • Approach the timber slowly. ANY THREE OF THE ABOVE OR ANY ACCEPTABLE ANSWER (3) 4.8.2 • Check the wood for any metal objects before cutting commence.  • Make sure the teeth of the blade are sharp. • Ensure that the blade is properly fastened. • Do not force material to the blade. ANY TWO OF THE ABOVE (2) 4.9 • Remove all dust  • Apply first layer of sanding sealer.  • Allow drying time for first layer.  • Sand lightly  • Remove dust from the door.  • Apply second layer of sanding sealer. ANY FIVE OF THE ABOVE (5) 4.10 • Graded timber has a stamp that indicates the grade as well as the saw mill at which it was graded.  • Graded timber has a colour coded end grain. ANY ONE OF THE ABOVE (1) [40] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 12 DBE/2019 SC/NSC – Marking Guidelines QUESTION 5: CENTRING, FORMWORK, SHORING AND GRAPHICS AS MEANS OF COMMUNICATION (SPECIFIC) 5.1 OPENING  LAGGING      RIB  BEARER Proportion  ASSESSMENT CRITERIA MARK Bearer 1 Rib 1 Laggings 1 Space between laggings 1 Any THREE labels 3 Proportion 1 TOTAL: 8 (8) 5.2 5.2.1 Braces/struts  (1) 5.2.2 Fish plate  (1) 5.2.3 Clamps  (1) 5.2.4 Folding wedges  (1) 5.2.5 Soleplate  (1) 5.3 • Plastic  • Metal sheeting  • Hardboard/Ply wood • Fibreglass ANY TWO OF THE ABOVE (2) 5.4 A – Clamp/cleat  B – Yoke  C – Threaded bolt/Threaded rod  (3) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 13 DBE/2019 SC/NSC – Marking Guidelines 5.5  DEAD SHORE   STEEL DOG  FOLDING WEDGE   SOLE PLATE Proportion  ASSESSMENT CRITERIA MARK Dead shore 1 Steel dog 1 Folding wedge 1 Soleplate 1 Any TWO labels 2 Proportion 1 TOTAL: 7 (7) 5.6     Proportion  ASSESSMENT CRITERIA MARK Parapet wall 1 Wall 1 Wall plate 1 Rafter 1 Proportion 1 TOTAL: 5 (5) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 14 DBE/2019 SC/NSC – Marking Guidelines QUESTION 6: SUSPENDED FLOORS, STAIRCASES, IRONMONGERY, DOORS AND JOINING (SPECIFIC) 6.1 6.1.1 C (1) 6.1.2 A (1) 6.1.3 C (1) 6.1.4 A (1) 6.1.5 D (1) WALL OF SUPER 6.2 STRUCTURE AIR BRICK      WALL PLATE  ANT GUARD  FLOOR JOIST  DPC FOUNDATION WALL FOUNDATION Proportion  ASSESSMENT CRITERIA MARK Foundation wall: 330 mm 1 Wall of superstructure 1 DPC 1 Ant guard 1 Air brick 1 Wall plate 1 Floor joist 1 Proportion 1 Any ONE label 1 TOTAL: 9 (9) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 15 DBE/2019 SC/NSC – Marking Guidelines 6.3 • Half-landing stairs are known as U-shaped  stairs. A half – landing staircase has two parallel flights of stairs  that are connected by a landing that make a 180°  turn when one staircase ascends or descends. OR    (3) 6.4 • Mortise locks are mortised  into one of the stiles of the door and are used for entrance doors, internal doors and any large doors.  • Night latch is mounted  onto the internal surface of the stile of a door and is used to secure entrance doors.  (4) 6.5 813  TOP RAIL  STILE  RAISED AND FIELDED PANEL  STILE    2 032 LOCK RAIL/MIDDLE RAIL RAISED AND FIELDED PANEL MUNTIN BOTTOM RAIL THREE PANEL DOOR  ANY FOUR LABELS = 4 (7) Copyright reserved Please turn over

Downloaded from hlayiso.com Civil Technology: Woodworking 16 DBE/2019 SC/NSC – Marking Guidelines 6.6  TENON  LOCK RAIL  Proportion   GROOVE FOR PANEL   ASSESSMENT CRITERIA MARK CANDIDATE'S MARK Hidden detail of grooves 2 Double tenon 2 TWO labels 2 Proportion of tenons 1 TOTAL: 7 (7) 6.7 A – Joist hanger/Truss hanger/Beam hanger  (1) 6.8 6.8.1 Clout nails/Dry wall screws  (1) 6.8.2 Copper nails/Nails/Screws  (1) 6.8.3 Roof nails  Pozi drive screws ANY ONE OF THE ABOVE (1) 6.9 • Putty  • Glazing beads ANY ONE OF THE ABOVE (1) [40] TOTAL: 200 Copyright reserved