Design & Communication Graphics

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1 L.84/85 Design & Communication Graphics Marking Scheme Ordinary Pg. 3 Higher Pg L.84/85_MS 1/20

2 2013 L.84/85_MS 2/20

SECTION A - Core - Answer Any Three of the questions on this A3 sheet A-1. The 3D graphic below shows three candles. The drawing on the right shows the plan and elevation of the sphere A.

(b) Draw the plan of cone C. B X A A C C Y A-3. The 3D graphic below shows a nest of tables.

The elevation and partially completed plan of the table have been positioned relative to the axes as shown. (a) Complete the plan of the table. (b) Compete the axonometric projection.

(b) Projection from plan (4m) Projection from elevation (4m) Establish end points (2m) Completion (4m) Presentation (2m) Z X A-2. The photograph below shows a bird house.

3 SECTION A - Core - Answer Any Three of the questions on this A3 sheet A-1. The 3D graphic below shows three candles. The drawing on the right shows the plan and elevation of the sphere A. The plan of sphere B and the elevation of cone C which are in contact with sphere A are also shown. All solids rest on the horizontal plane. (a) Draw the elevation of sphere B. (b) Draw the plan of cone C. B X A A C C Y A-3. The 3D graphic below shows a nest of tables. A set of isometric axes and a partially completed outline drawing of the larger table are shown on the right. The elevation and partially completed plan of the table have been positioned relative to the axes as shown. (a) Complete the plan of the table. (b) Compete the axonometric projection. Y Total (20) (a) Projection to elevation (3m) Centre of sphere (4m) Sphere (4m) (b) Projection to plan (2m) Centre of cone (2m) Cone (3m) Presentation (2m) B Total (20) (a) Completion of plan (4m) (b) Projection from plan (4m) Projection from elevation (4m) Establish end points (2m) Completion (4m) Presentation (2m) Z X A-2. The photograph below shows a bird house. The plan and incomplete elevation of the bird house are shown on the right. (a) Complete the elevation of the outline of the bird house. (b) Draw an auxiliary elevation of the birdhouse, on the given X 1 Y 1, which will show the true angle between the two roof surfaces A and B. X Y X Y X1 A-4. A photograph of a bridge with a parabolic support is shown. The drawing on the right shows the directrix of the parabola and two points on the curve P and P 1. (a) Locate the focus, axis and vertex of the parabola. (b) Locate at least four extra points and draw a portion of the curve. P 1 P Total (20) (a) Projection to elevation (3m) Heights (3m) Completion (3m) (b) Projection to auxiliary (2m) Heights (2m) Completion (4m) A B Y1 Total (20) (a) Arcs (4m) Focus, axis, vertex (6m) (b) Construction (4m) Curve (4m) F D V D D D Presentation (3m) Presentation (2m) 2013 L.84/85_MS 3/20 This examination paper must be returned at the end of the Examination You must include your Name, School Name and Teacher Name on the front cover

4 (a) Elevation Outline (6m) Completion (4m) Plan Outline (7m) Completion (6m) (b) X 1 Y 1 (2m) Projections (2m) Heights (2m) One Surface (3m) Completion (9m) Presentation (4m) Ordinary Level Section (B) L.84 Scale 1:1 Question B L.84/85_MS 4/20

5 Set up (4m) Spectator (4m) PP, GL and HL (6m) Vanishing Points (4m) Sight Lines (4m) Base Outline (6m) Heights (4m) Sloping Surface (6m) Completion (3m) Presentation (4m) 2013 L.84/85_MS 5/20 Ordinary Level Section (B) L.84 Scale 1:1 Question B-2

6 (a) Octagon (6m) End view (6m) (b) Elevation (6m) (c) Outline of plan (6m) Hexagonal opening (6m) Curve (6m) Completion (5m) Presentation (4m) Ordinary Level Section (B) L.84 Scale 1:1 Question B L.84/85_MS 6/20

7 (Question C-1) (a) Height lines (7m) Projectors (7m) Profile (8m) (b) Construction (4m) Indicate height (2m) (c) 5m parallel lines (5m) Plot points (4m) Curve (4m) Presentation (4m) Ordinary Level Section (C) L.84 Scale 1:1000 Question C L.84/85_MS 7/20

8 (a) Plan outline (6m) Elements (6m) Elevation outline (6m) Elements (7m) Curve (2m) (b) Outline (6m) Elements (6m) Curve (2m) Presentation (4m) Ordinary Level Section (C) L.84 Scale 1:1 Question C L.84/85_MS 8/20

9 (a) Plan (6m) Elevation (6m) Completion (6m) (b) Base (5m) Plane vertical surfaces (6m) Curved surface (8m) Completion (4m) Presentation (4m) 2013 L.84/85_MS 9/20 Ordinary Level Section (C) L.84 Scale 1:1 Question C-3

10 Fig. C-4(a) (a) Outline (4m) Vertical divisions (2m) SHM construction (4m) Dwell (2m) UV construction (4m) Transfer to profile (4m) Path (3m) (b) Set up (5m) Construction (5m) Maximum (4m) Minimum (4m) Presentation (4m) Ordinary Level Section (C) Fig. C-4(b) L.84 Scale 1:1 Question C L.84/85_MS 10/20

11 Relative positioning of components (8m) Scoop (7m) Handle (7m) Receiver (5m) Screw set (4m) Washer (2m) Drawing completion Hatching (4m) Centrelines (4m) Presentation (4m) Ordinary Level Section (C) L.84 Scale 1:1 Question C L.84/85_MS 11/20

SECTION A - Core - Answer Any Three of the questions on this A3 sheet A-1. The 3D graphic below shows a helmet from a set of armour used by a local drama group. It consists of two truncated cones.

(a) Use a focal sphere to find the directrix and the focal point of the parabola. (b) Draw a portion of the curve A-3. The 3D graphic below shows an office building.

(b) Determine, and indicate in degrees, the inclination of the cut surface to the vertical plane.

(3m) A-2. The 3D graphic below shows a pair of garden lights. The head of the light consists of two square-based truncated pyramids. The drawing on the right shows a set of dimetrix axes.

12 SECTION A - Core - Answer Any Three of the questions on this A3 sheet A-1. The 3D graphic below shows a helmet from a set of armour used by a local drama group. It consists of two truncated cones. The drawing on the right shows the elevation of the top truncated cone. The true shape of the cut surface is a parabola. (a) Use a focal sphere to find the directrix and the focal point of the parabola. (b) Draw a portion of the curve A-3. The 3D graphic below shows an office building. It is based on truncated hexagonal prisms. The drawing on the right shows how a prism is truncated. (a) Draw the elevation of the prism when cut by the oblique plane VTH. (b) Determine, and indicate in degrees, the inclination of the cut surface to the vertical plane. Total (20) (a) Focal sphere (5m) Axis (2m) Directrix (3m) Focal point (2m) (b) Construction (5m) Curve (3m) Total (20) (a) Method (5) Point on cut surface (4m) Completion (5m) (b) Method (3m) Angle (3m) A-2. The 3D graphic below shows a pair of garden lights. The head of the light consists of two square-based truncated pyramids. The drawing on the right shows a set of dimetrix axes. The elevation of a similar lamp head has been positioned relative to the axes as shown. Draw the plan in its correct position and complete the axonometric projection. A-4. The graphic below shows a miner in a borehole. The positions of two boreholes are represented by the projections of two skew lines AB and CD as shown. To facilitate access between the boreholes a horizontal borehole is required. (a) Determine the projections of the shortest horizontal distance between the two lines. (b) Determine and indicate the length of this shortest distance. Total (20) TS of HP (4m) Plan (2m) Projectors (4m) Base (3m) Top (3m) Completion (4m) Total (20) (a) Parallel plane (6m) Skew lines (4m) Shortest Distance (4m) (b) Method (3m) Altitude (3m) 2013 L.84/85_MS 12/20 This examination paper must be returned at the end of the Examination You must include your Name, School Name and Teacher Name on the front cover

13 (a) Set up (8m) (b) Method (7m) Line of intersection (7m) (c) Method (8m) Dihedral angle (7m) (d) Method (4m) Inclination (4m) Higher Level Section (B) L.85 Scale 1:1 Question B L.84/85_MS 13/20

14 (a) Plan (8m) (b) S, PP, VPs (6m) GL, HL, VPs (4m) Projectors (4m) Base (6m) Underside (5m) RHS including set up (6m) AVP (3m) Completion (3m) Higher Level Section (B) L.85 Scale 1:20 Question B L.84/85_MS 14/20

15 (a) AB (7m) Apex (5m) Prism (5m) Pyramid (5m) (b) Opening in plan (5m) Opening in elevation (5m) (c) Method (5m) HT (4m) VT (4m) Higher Level Section (B) L.85 Scale 1:40 Question B L.84/85_MS 15/20

16 A B C (a) Earthworks A-B Parallel lines (10m) Intersections / curves (9m) Earthworks B-C Arc (5m) Parallel Lines (4m) Intersection / curves (7m) (b) Plot strike (3m) Dip (3m) Plot borehole (2m) Thickness (2m) Higher Level Section (C) L.85 Scale 1:1000 Question C L.84/85_MS 16/20

17 (a) Plan and elevation of ABCD (6m) Plan and elevation of elements (6m) Top curve (4m) Ellipse in plan (5m) Extension of elements (5m) Elevation of curve (5m) (b) Circle in plan (2m) Elevation of curve (6m) (c) HT (3m) VT (3m) Higher Level Section (C) L.85 Scale 1:100 Question C L.84/85_MS 17/20

18 (a) Base cone (6m) Top cone (6m) Truncation (10m) (b) Development (8m) Rectangular sheet (4m) (c) Focal sphere (4m) DD (3m) Focus and vertex (4m) Higher Level Section (B) L.85 Scale 1:5 Question C L.84/85_MS 18/20

19 Fig. C-4(b) Scale 1:1 (a) Draw profile (5m) Displacement diagram (6m) Divisions (4m) Points (4m) Extra points (4m) Curve (4m) (b) Set up (6m) Method (8m) Curve (4m) Fig. C-4(a) Scale 5:1 Higher Level Section (C) L.85 Scale Question C L.84/85_MS 19/20

20 (a) End view outline (6m) Completion (6m) Sectional elevation outline (6m) Cut in side (6m) Dowels (7m) Centerlines (3m) Hatching (3m) (b) Part 1 (8m) Higher Level Section (C) L.85 Scale 1:2 Question C L.84/85_MS 20/20

Design & Communication Graphics Higher Level Section A (60 marks)

Design & Communication Graphics Higher Level Section A (60 marks) 1 70 F 60 65 60 65 70 75 75 70 65 60 55 50 45 45 50 45 D S W E E N 70 This ontour Map is part of Section and should only be used for the answering of the Geologic Geometry Option (Question -1). 65 Pre-Leaving