Civil Technology Grade 11 Eastern Cape November 2018 Memo

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE GRADE 11 NOVEMBER 2018 CIVIL TECHNOLOGY: WOODWORKING MARKING GUIDELINE MARKS: 200 This marking guideline consists of 16 pages, including 5 pages of answer sheets.

Downloaded from hlayiso.com 2 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) QUESTION 1: SAFETY AND MATERIAL (GENERIC) 1.1 1.1.1 Hard hat / Safety hat (1) 1.1.2 All building sites / construction sites (1) 1.2 1.2.1 Loose clothing – Button up / Remove (1) 1.2.2 Type of shoes in a workshop – Non-slip / Metal point (1) 1.2.3 When sharp object are carried – Point downwards (1) 1.2.4 Dangerous moving parts of power tools – Covered by guards (1) 1.2.5 Number of operators who operates a machine – Only one (1) 1.3 Contractor (1) 1.4 Any FOUR safety measures which are applicable to the storage of flammable liquids. x Room must be well ventilated x Door must have a threshold x No material that may cause a spark x Liquids that may interact chemically not to be stored in close proximity x Containers sealed properly (4 x 1) (4) 1.5 1.5.1 Suspended concrete floors – Reinforced concrete (1) 1.5.2 Lintels above door openings – Precast concrete (1) 1.5.3 Foundations for single-storey buildings – Unreinforced concrete (1) 1.6 Any ONE use of screed. x A finish for floors and walls x Facing material x Surfacing of suspended floors x Insulated roof screed (1) 1.7 Any TWO reasons why lime can be added to a mortar mix x Increases plasticity x Makes mortar more workable (2 x 1) (2) 1.8 (1) Cheap (2) easy workable (2) 1.9 1.9.1 True (1) 1.9.2 False (1) 19.3 False (1) 1.9.4 True (1) Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 3 1.10 (1) High hygienic properties and (2) easy to clean (2) 1.11 (1) Two or more metals (2) are combined to (3) form a new metal / with better properties / other properties (3) 1.12 Any ONE use of thermosetting plastic. x Sewerage pipes x Gutters x Cold- and hot water pipes (1 x 1) (1) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com 4 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) QUESTION 2: EQUIPMENT, TOOLS AND GRAPHICS (GENERIC) 2.1 2.1.1 Comb hammer (1) 2.1.2 Steel comb, finish bricks, blocks/roughen smooth surfaces (2) 2.1.3 (1) Hammering on hard bricks (2) decays the comb / make comb blunt (2) 2.2 (1) Mitre try square Any THREE uses of it.(3) x Testing squareness x Marking out perpendicular lines x Can be used as a ruler x Marking square lines x Test if surfaces are straight x Drawing 45° lines (4) 2.3 (1) Radial arm saw Any THREE caring measures for it.(3) x Maintain – lubricate and adjust according to instructions x Clean after use x Repair damaged electrical cords x Handle with care not to damage accuracy x Use only for intended purpose x Do not force the saw x Avoid blunt blades x Keep ventilation holes open x Service regularly (4) 2.4 Any TWO caring measures for a concrete mixer. x Clean inside after use x Do not leave water in the drum x Oil inside of drum when storing for a long time (2 x 1) (2) Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 5 2.5 2.5.1 Site plan (1) 2.5.2 124 (1) 2.5.3 Building boundary (1) 2.5.4 2.5.B – Manhole 2.5.C – Rodding eye (2) 2.6 FIGURE 2.6 on ANSWER SHEET A shows an incomplete section view of a single brick wall. Complete the section view on scale 1 : 20 and show the following parts with symbols and labels: 2.6.1 A strip foundation of 700 x 250 mm with the invert level of 400 mm (3) 2.6.2 A single brick wall with a height of 2 700 mm from the floor level and 10 mm plaster work on the outside and inside (5) 2.6.3 The hard core filling of 250 mm (1) 2.6.4 The damp proof course (2) 2.6.5 The blinding layer of 50 mm (1) 2.6.6 The concrete floor slab of 90 mm (1) 2.6.7 A door opening with a height of 2 100 mm (1) 2.6.8 A concrete lintel with a thickness of 70 mm above the door opening (2) 2.6.9 A wall plate of 114 x 38 mm (2) 2.10 Show any TWO labels. (2 x 1) (2) [40] Copyright reserved Please turn over

Downloaded from hlayiso.com 6 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) QUESTION 3: QUANTITIES, JOINING AND GRAPHICS (GENERIC) 3.1 FIGURE 3.1 shows the foundation wall of a building. The width of the wall is 220 mm and the height 450 mm. Use the quantity list on ANSWER SHEET B and calculate the following: 3.1.1 Determine the centre line of the foundation wall. (6) 3.1.2 Determine the quantity of bricks needed to build the foundation wall and make provision of 5% brick breakage damage. (9) 3.2 (1) Thorough description of the (2) item that was measured and (3) any preliminary calculations or sketches (3) 3.3 (1) Apply adhesive to both surfaces (2) allow to dry and (3) when almost dry, clamp parts together (3) 3.4 Epoxy (1) 3.5 Any TWO properties of mastic sealant. (2 x 1) x Works well on metals x Prevents dust penetration in joints x Flexible, yet keeps surfaces together x Adhesion for 5 years x Smooth exterior x Can be used outdoors x Water tight x Withstand low and high temperatures x Not weakened by exposure to sun (2 x 1) (2) 3.6 3.6.1 Gully (2) 3.6.2 Check valve (2) 3.6.3 Dressed wood (2) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 7 QUESTION 4: MATERIAL, TOOLS, GRAPHICS AND WINDOWS (SPECIFIC) 4.1 Softwood and hardwood (2) 4.2 4.2.1 More expensive 4.2.2 Any type of wood 4.2.3 50 mm 4.2.4 25% (4) 4.3 4.3.1 Table saw / circular saw (1) 4.3.2 4.3.A – blade cover 4.3.B – mitre gauge 4.3.C – hand wheel for blade-height adjustment 4.3.D – mitre gauge slot 4.3.E – rip fence (5) 4.4 4.4.1 Cutting of curves and circles on large surfaces Cutting a wide range of materials such as hardboard, laminated boards, plastic and thin metal (Any 1) (1) 4.4.2 Sanding across as well as along the grain of wood Sanding surfaces before polishing Sanding between layers of varnish (Any 1) (1) 4.4.3 Shaping of surfaces and edging of wood Cutting of profiles to a straight or curved edge Cutting groves Cutting dovetail joints (Any 1) (1) 4.5 ANSWER SHEET C – ROOF TRUSS (12) 4.6 4.6.1 Skirting (1) 4.6.2 Cornice (1) 4.6.3 Rebate (1) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com 8 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) QUESTION 5: JOINING WINDOWS, DOORS AND WALL PANELLING (SPECIFIC) 5.1 To be built into brickwork/Fix door frame to wall (1) 5.2 Floating shelves Steel rail brackets Dowels Wall plug, supporting pins and screws (Any 3) (3) 5.3. 5.3.1 Double mortise and tenon joint (1) 5.3.2 Doorframes (1) 5.3.3 Tenons (2) 5.3.4 5.3.B – Face cheek 5.3.C – Edge cheek (2) 5.3.5 Mortise chisel (1) 5.4 ANSWER SHEET D (7) 5.5 For shrinkage and expansion (2) 5.6 Z-framed, ledged and braced batten door (6) Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 9 5.7 It gives a pleasing, decorative and durable appearance It conceals cracks in walls Panelling does not require the entire wall to be plastered Does not expand and shrink in the same way as solid timber Provides good insulation Requires no framework (4 x 1) (4) [30] Copyright reserved Please turn over

Downloaded from hlayiso.com 10 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) QUESTION 6: CENTRING, FORMWORK, SHORING AND SUSPENDED FLOORS (SPECIFIC) 6.1 The top shape of the framework must be the same as the underside of the arch Centre must support the weight of the wet masonry/brickwork until the cement between the arc stones has set Centres must be rigid and strong in order to support the masonry of the arch Must easily be removed Must be secured with round wire nails Size of members is determined by the design and construction of the centre (4 x 1) (4) 6.2 Two solid timber strips 25 mm thick (1) 6.3 A. Laggings B. Rib C. Strut D. Bearer E. Folding wedges (5) 6.4 Any TWO. x The boards are economical x Used where a smooth or quality finish is not needed x Big sheets available (2 x 1) (2) Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 11 6.5 6.5.1 To prevent the concrete from sticking to surfaces of the timber (2) 6.5.2 To ensure that the surface of the column is even (2) 6.5.3 To ease assembling and dismantling of formwork (2) 6.6 ANSWER SHEET E (10) 6.7 Make provision for raising or lowering the formwork to the required height Ease the removal of the formwork after completion of lintel (2) 6.8 Made of wood and metal and used to pull together the box of a square column by means of nuts and bolts (2) 6.9 6.9.1 False (1) 6.9.2 False (1) 6.9.3 False (1) 6.9.4 True (1) 6.10 A Rising butt B Parliament C Strap (3) 6.11 For ventilation of timber floor (1) [40] TOTAL: 200 Copyright reserved Please turn over

Downloaded from hlayiso.com 12 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) CIVIL TECHNOLOGY ANSWER SHEET A GENERIC NAME: 2.6 FIGURE 2.6 on ANSWER SHEET A shows an incomplete section view of a single brick wall. Complete the section view to scale 1 : 20. 2.6.1 Strip foundation 3 2.6.2 Single brick wall 5 2.6.3 Hard core filling 1 2.6.4 Damp proof course 2 2.6.5 Blinding layer 1 2.6.6 Concrete floor slab 1 2.6.7 Door opening 1 2.6.8 Concrete lintel 2 2.6.9 Wall plate 2 2.6.10 2 Labels 2 TOTAL 20 2xLabels NGL Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 13 CIVIL TECHNOLOGY ANSWER SHEET B GENERIC NAME: QUESTION 3.1 A B C D 3.1.1 CENTRE LINE: (6) 2 x 9 m = 18 m 2 x 6 m = 12 m = 30 m Minus: 4 x 0.22 m = 0.88 m TOTAL CENTRE LINE = 29.12 m 3.1.2 QUANTITY OF BRICKS: (9) AREA: Total wall area 1 29.12 0.45 13.104. Thus: Total wall area = 13.104 m² TOTAL BRICKS 13.104 100 bricks/ m2 for single brick wall 100 1 310.4 Thus: 1 311 bricks for total wall 5% BREAKAGE 5/ 100 x 1 311 = 66 bricks TOTAL BRICKS : 1 311 + 66 = 1 377 total quantity bricks Copyright reserved Please turn over

Downloaded from hlayiso.com 14 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) CIVIL TECHNOLOGY ANSWER SHEET C WOODWORKING NAME: 4.5 FIGURE 4.5 on ANSWER SHEET C shows the incomplete sectional view of the outside walls and one inner wall of a building. Complete to a scale 1 : 50, the SA type roof truss construction with supports on the outside walls. The roof pitch is at 30˚ with a overhang of 300 mm. (12) SA-type roof truss 1 Tie beam 1 Principal rafter 2 King post 1 Strut 2 Position of supports 1 30° Pitch 1 300 mm Overhang 1 Scale 2 TOTAL 12 Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/NOVEMBER 2018) CIVIL TECHNOLOGY: WOODWORKING 15 CIVIL TECHNOLOGY ANSWER SHEET D WOODWORKING NAME: 5.4 FIGURE 5.4 on ANSWER SHEET D shows the incomplete horizontal section through the mullion and adjacent stiles with glass and partially rebated. Complete in good proportion the section view through the adjacent left view. Ovolo mould 2 Putty 1 Lip of stilel 2 Drip groove 2 TOTAL 7 Copyright reserved Please turn over

Downloaded from hlayiso.com 16 CIVIL TECHNOLOGY: WOODWORKING (EC/NOVEMBER 2018) CIVIL TECHNOLOGY ANSWER SHEET E WOODWORKING NAME: 6.6 FIGURE 6.6 on ANSWER SHEET E shows the vertical view of a wall, sole plate and formwork board for a concrete floor slab. Complete by drawing the parts of formwork supports on a scale of 1 : 20. (10) Wedges 2 Prop 2 Cross-bearer 2 Bearer 2 Scale 2 TOTAL 10 Copyright reserved Please turn over