Engineering Graphics and Design Grade 11 P2 2015 QP (Eng)

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Engineering Graphics and Design/P2 Downloaded y from hlayiso.com — QUESTION 1: ANALYTICAL (MECHANICAL) Given: Four views of a crank disc with a title block and a table of questions. Instructions: Complete the table below by neatly answering the questions, which all refer to the accompanying drawings and title block. Show all calculations. [22] 1 | Who approved the drawing? 1 2. | What SI unit was used to produce the drawing? 1 5 3. | Which drawing method was used to create these drawings? 1 4 | What is the web address of the design company? 1 5. | How many sets of drawings are there? 1 6 | What is the tolerance allowed on the dimensions? 1 7 | What is feature R called? 1 8 | What is the size of the arc marked S? 1 9. | Determine the dimension at T? 1 10 | Determine the dimension at U? 1 11 | Determine the dimension at V? 1 12 | What change did Keano recommend? 1 13 | What is the purpose of the change that Keano recommended? 2 14 | What type of section is shown on view 3? 1 15 | What type of section is shown on view 4? 1 16 | What do the letters P.C.D. stand for? 1 4HOLES 08 Ta N72 PCD 17 | How many @8 holes need to be drilled in the disc? 1 SFAGE 016 4g | nthe box below (ANSWER 18), draw, in neat freehand, the 4 symbol for the projection system used TOTAL 22 VIEW 1 2109/2014] KEANO INSERT KEYWAY 1 ALL DIMENSIONS ARE IN MILLIMETRES. DATE CHANGED BY REVISION DESCRIPTION No DRAWN BY: Joht DRAWING SET NO. 2 OF 2 MATERIAL: CAST IRON ANSWER 18 UNLESS OTHERWISE ohn “ * SPECIFIED, TOLERANCES :-53-; ON DIMENSIONS ARE DATE: 15/09/2014 FILE NAME: BASE-53-2014 HEAT TREATMENT: NONE ++ 0,35. ‘CHECKED BY: Ann. PRECISION CAST BELL STREET SOMERSET EAST - - ALL UNSPECIFIED RADI | DATE: 18/09/2014 5850 ARE R5. MANUFACTURING www precision.co.za APPROVED BY: Peter NAME DATE: 03/10/2014 DRAWING PROGRAM: noes seen CRANK DISC smn —_ 2 Copyright reserved Please turn over

Engineering Graphics and Design/P2 Downloaded from hlayiso.com QUESTION 2. EC DBE/November 2015 Given: ELIX (AUGER) © The left view and incomplete front view of a right handed auger. * The centre lines for the left view as a reference point. Instructions: © Copy the left view and construct the front view of a one and a half turn, right handed auger. The pitch is 48 mm. Start at the left top position Show ALL necessary construction. 4 a2tums [24] ASSESSMENT CRITERIA 1 COPY + CONSTR’ + G DIRECTION + CL 2 OUTSIDE HELIX 9 3. INSIDE HELIX 6 4 SHAFT + ENDS 3 SUBTOTAL | 24 DISPLACEMENT 0° 30° 60° 90° 120° 150° 180° 210° 240° 270° 300° 330° 360° ROTATION QUESTION 2.2: LOCI (CAMS) Given: © The displacement graph of an industrial cam © The minimum cam radius is 10 mm * The cam rotates clockwise. Instructions: * Project and draw the cam profile that would generate the given motion. Indicate the degrees on the cam profile. The arrow indicating the direction of rotation must be shown. * Show ALL necessary construction [18] ASSESSMENT CRITERIA 1 ARROW + MIN RADIUS + DEGREE + CL 2 CONSTRUCTION 3 3 CAM POINTS 6 4 CURVE + QUALITY 5 SUBTOTAL | 18 TOTAL | 42 NAME NAME [3 Copyright reserved Please turn over

Engineering Graphics and Design/P2 y Downloaded from hlayiso.com — QUESTION 3: ISOMETRIC DRAWING Given: The front view, top view and left view of a model. © The position of point B on the drawing sheet. Instructions: Convert the orthographic views of the model into a scale 1: 1 isometric drawing, * Make corner B the lowest point of the drawing. * Show ALL necessary circle and other construction. © NO hidden detail is required. [38] PENTAGON _ ! 228 50. 464 I r bh rE 1 30 T ASSESSMENT CRITERIA 1, AUX. VIEW+PLACING | 5 2. BASE + ISO’ LINES 16 3. WEB 13 Vv 4. PENTAGON a B 5. ISOMETRIC CIRCLES | 6 6. CENTRE LINES 1 TOTAL | 38 NAME, NAME, [4 Copyright reserved Please turn over

Engineering Graphics and Design/P2 HOUSING Downloaded from hlay M35, B48 fs 90° { T Yoel t RUBBER SEAL ow, 228 RUBBER SEAL M14 fot M14 NUT WASHER HANDLE 220 M14 ALL DIMENSIONS ARE IN MILLIMETRES. @10 ° QUESTION 4: MECHANICAL ASSEMBLY Given: * The exploded isometric drawing of the parts of a shut-off valve assembly, showing the position of each part relative to alll the others * Orthographic views of each of the parts of the shut-off valve assembly Instructions: * Answer this question on page 6. * Draw, to scale 1: 1 and in third-angle orthographic projection, the following view of the assembled parts of the shut-off valve assembly: ** Asectional front view, on cutting plane A-A, as seen from the direction of the arrow shown on the exploded isometric drawing. The cutting plane is shown on the left view of the housing (part 1) * ALL drawings must comply with the guidelines contained in the SABS 0111. NOTE: * Show three sides of the nut in the sectional front view. * Show all the constructions for the nut. * No hidden detail is required. [98] PARTS LIST PART QUANTITY MATERIAL 1. HOUSING 1 CAST IRON 2. SCREW 1 MILD STEEL 3. RUBBER &- SEAL 1 RUBBER ALL UNSPECIFIED RADII ARE R3. 5 4. SUPPORT 1 MILD STEEL “ 6 eee 1 RUBBER M6 slot 2x 2 deep 6. CAP 1 MILD STEEL 220 © s t M6 SCREW 7. SHAFT 1 MILD STEEL 8. HANDLE 1 MILD STEEL y, ary ‘9. WASHER 1 MILD STEEL DRAWN BY: SHAFT 40. NUT 1 MILD STEEL DATE: 16/ S H UTTERS BUFFALO STREET MTHATHA CHECKED BY! © MANUFACTURING 6001 CER CAPE www.everyshatf.co.2a DEPARTMENT BASIC EDUCATION DATE: 20/01/2014 GRADE 11 DRAWING PROGRAM: CAD 2015 APPROVED B' Tie DATE: 25) 2/2014 SHUT-OFF VALVE OK movenesne a Copyright reserved Please turn over

Engineering Graphics and Design/P2 ¢ Cg s EC DBE/November 2015 Downloaded from hlayiso.com ASSESSMENT CRITERIA ‘SECTIONAL FRONT VIEW 1, HOUSING 24 2, SCREW @ 3. RUBBER SEAL 3 4. SUPPORT 3 5, SHAFT 1 6. RUBBER SEAL 7. CAP 8, WHEEL 9. WASHER 10. NUT ACENTERLINES HATCHING 18 ASSEMBLY 9 TOTAL 98 NAME NAME Copyright reserved