Engineering Graphics and Design Grade 11 P2 2017 QP (Eng)

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Downloaded from hlayiso.com Engineering Graphics and Design/P2 Nsc. EC DBE/November 2017 QUESTION 1: ANALYTICAL (MECHANICAL) Given: Hoy 25 Parts of a pulley tensioner with a title block and a table of questions = Instructions: T Complete the table below by neatly answering the questions, which all --4 M10 NUT refer to the accompanying drawings and title block. t Show all calculations. [30] What is the indicated scale of the drawing? BEARING BUSH BASE ‘ g ‘ 2. | From what material is the spring manufactured? 1 5 3 | Which drawing programme was used to create these drawings? 1 om i | 8p 4. | What is the drawing file name? 1 5 | What is the website address of the company? 1 KA IA\ 6 | What is the tolerance allowed on the dimensions? 1 vi } 7 | Why was the drawing revised? 1 ll 8 | At what angle is feature A drawn? 1 9 | What is feature B called? 1 10 | What is feature C called? 1 PULLEY ARM 11 | What is feature D called? 1 18) 12 | Whatis the radius of the arc at D? 1 13 | Identify the line type at point E. 1 14 | What does the double arrows at F indicate? 1 15 | Determine the dimension at G 2 4g | Ifa standard size M10 nut was used, calculate the thickness of 6 2 I the nut at H. 08 40 \ 17 | What type of section is shown at the BEARING? 1 18 | What does A/F mean at the M10 nut? 1 Qn 49 | Inthe box below (ANSWER 19), draw, in neat freehand, the 6 SANS convention for a BEARING SPACER SPRING (A) | 99 | Inthe box below (ANSWER 20), draw, in neat freehand, the 4 Ss symbol for the projection system used 24/03/17 SANJAY CHANGE SPRING SPECIFICATION 1 {B) TOTAL 30 ALL DIMENSIONS ARE IN MILLIMETRES. DATE CHANGED BY REVISION DESCRIPTION No (IES GR ERIS DRAWN BY: Keith DRAWING SET NO. 1 OF 3 MATERIAL: VARIOUS PARTS LIST ANSWER 19 ANSWER 20 ae DATE: 15/02/2017 FILE NAME: TEN-53-2017 HEAT TREATMENT: NONE PART QUANTITY | MATERIAL PART QUANTITY | MATERIAL £0,36. CHECKED BY: Ann WM PULLEY VAN NIEKERK STREET 1. BASE 1 CASTIRON | 6. SPRING 1 SPRING STEEL ALL UNSPECIFIED RADII DATE: 18/03/2017 MANUFACTURING Moe pURS 2. ARM 1 CAST IRON 7. SPACER 1 MILD STEEL CONVENTION FOR BEARING SYMBOL eek J www.pulley.co.za 3. PULLEY 1 CASTIRON | 8. SHAFT 1 MILD STEEL APPROVED BY: Peter NAME DATE: 28/03/2017 4, BUSH 1 MILD STEEL 9. BEARING 4 MILD STEEL DRAWING PROGRAM Copyright reserved Please tum over

Engineering Graphics and Design/P2 Downloaded from hlayiso.com — 42 QUESTION 2: LOCI (CAMS) Given: * The shaft and follower detail of an industrial cam with follower shown at its lowest position. The minimum cam radius is 16 mm. The specifications for the movement is as follows: The cam shaft rotates clockwise at uniform velocity. Over the first 30°, the follower is at rest; Over the next 60°, the follower rises 60 mm; There is a dwell period for the next 30°; Over the next 60°, the follower falls 35 mm; There is a dwell period for the next 30°; Over the next 45°, the follower rises 25 mm. There is a dwell period for the next 30°. Over the final 75°, the follower returns to its original position. Instructions: 2.1. Draw, to scale 1:1, a displacement graph with a scale of 30° equal to 8 mm and a follower displacement scale of 1:1 for the given motion. Indicate the degrees below the graph. Label the graph. 2.2. 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. © Donot show the cam follower [38] SHAFT @22 @) R16 ASSESSMENT CRITERIA 4. GRAPH + LABEL 1 2. ARROW + SHAFT + MIN RADIUS + DEGREE + CL 3. CONSTRUCTION 7 4, CAM POINTS: 8 5. CURVE + QUALITY 6 TOTAL | 38 NAME: NAME [3 Copyright reserved Please tun over

Downloaded from hlayiso.com Engineering Graphics and Design/P2 Nsc EC DBE/November 2017 a 42 QUESTION 3: ISOMETRIC DRAWING Given: © The front view, top view and left view of a si guide © The position of point B on the drawing sheet. Instructions: Convert the orthographic views of the sliding guide into ascale 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. [42] 40 10 30 40 15, eee 15, 55. tT | ha ha 95. ASSESSMENT CRITERIA 1, AUX, VIEW + PLACING 3 2. ISO'&NONISOLINES | 243 3. HEXAGON 6 4. ISO’ CIRCLES + CL 8 TOTAL | 42 NAME NAME, [4 Copyright reserved Please turn over

Engineering Graphics and Design/P2 ownloaded from + + BASE (1) uo 7 7 ore ' I FY | oe g [jf i i Fe I I R35 20 Ht Lit {| NZ ' 48 — L25_[as | 24 56 60 BEARING CAP (2) H H i i i tla a if | > *| I I I I 240 230 230 BUSH (3) SHAFT (4) patsy ay 5 sth M16 STUD (6) 932 o16 { of WASHER (6) hlayiso.com —— QUESTION 4 Given: * The exploded isometric drawing of the parts of a bearing housing, showing the position of each part relative to all the others ‘* Orthographic views of each of the parts of the bearing assembly Instructions: 4 + Answer this question on page 6. 2 * Draw, to scale 1:1 and in third-angle orthographic projection, the following v= views Of 4.1. The sectional front view on cutting plane A-A, as seen from the M16 NUT (7) direction of the arrow shown on the exploded isometric drawing The cutting plane passes through the vertical centre line of the assembly, is shown on the top view of the base (part 1). 4.2. The top view without hidden detail 4.3. The sectional left view on cutting plane B-B. NOTE: * Show THREE faces of the M16 nut and ALL necessary construction ‘* Insert the two cutting planes on the relevant view. * NO hidden detail is required [90] PARTS LIST PART QUANTITY MATERIAL 1. BASE 1 CAST IRON 2. BEARING CAP 1 CAST IRON 3. BUSH 1 MILD STEEL 4. SHAFT 1 MILD STEEL 5. STUD 1 MILD STEEL 6. WASHER 1 MILD STEEL ALL DIMENSIONS ARE | DRAWN BY: «eir7r 7. M16 NUT 1 MILD STEEL IN MILLIMETRES. DATE: 20/01/2017 VAN NIEKERK STREET ALL UNSPECIFIED Mw MANUFACTURING 5900 EASTERN CAPE RADII ARE R3. DATE: 27/02/2017 www bearing.co.za DEPARTMENT BASIC EDUCATION alana GRADE 11 Poee | TRE NOVEMBER 2017 APPROVED BY: FETE DRAWING PROGRAM: me raperan: [erro BEARING HOUSING |} E| i Copyright reserved Please turn over

Downloaded from hlayiso.com Engineering Graphics and Design/P2 Nsc EC DBE/November 2017 ASSESSMENT CRITERIA SECTIONAL LEFT VIEW 1, BASE 8 2. BEARING CAP 4 3. BEARING 4 4. SHAFT 5 ASSEMBLY 6 3rd ANGLE PROJ 2 SUBTOTAL | 24 TOP VIEW 1. BASE 1g 2. BEARING CAP 23 3. SHAFT 5 4, M16 NUT & STUD 6 5. WASHER, 1 6. CUTTING PLANE 7 SUB TOTAL | 234 SECTIONAL FRONT VIEW 1. BASE, 13, 2. BEARING CAP 6 3. BUSH & SHAFT 23 4, M16 NUT 7 5. WASHER, 2 6. STUD 12 SUB TOTAL | 424 TOTAL | 90 NAME, NAME 6 Copyright reserved