Engineering Graphics and Design Grade 12 P2 2022 Memo (Eng)

Downloaded from hlayiso.com ISEBE LEMFUNDO LEMPUMA KOLONI EASTERN CAPE EDUCATION DEPARTMENT OOS-KAAP ONDERWYSDEPARTEMENT NATIONAL SENIOR CERTIFICATE GRADE 12 ENGINEERING GRAPHICS AND DESIGN P2 SEPTEMBER 2022 PREPARATORY EXAMINATION MARKING GUIDELINE MARKS: 200 This marking guideline consists of 7 pages. Copyright reserved

Downloaded from hlayiso.com Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 1: ANALYTICAL (MECHANICAL) ANSWERS 1 3625 1 2 CL3215.DWG 1 3 AUTOCAD 2021 1 4 NONE 1 5 NOT TO SCALE 1 6 DRIVER PINS FORMAT 1 7 Ø1 1 8 CONVENTIONAL METHOD OR CAD 2 9 37 2 10 120° 1 11 3 1 12 OIL HOLE 1 13 FULL SECTION 2 14 BOTTOM VIEW 1 15 REVOLVED SECTION 1 16 PARTIAL SECTION 1 17 GRIP 2 18 40 2 19 28 DAYS OR 1 MONTH 2 20 4 TOTAL 29 ANSWER 20 FH 2 Copyright reserved Please turn over

Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 2.1: LOCI (CAM) ü HORIZONTAL PROJECTION ü CIRCLE + DIVIDING w x x x w x w w x 6 EQUAL PARTS ü w ü CURVE ü CURVE x ü w w w v x x ASSESSMENT CRITERIA v v 0° x ü 1 CONSTRUCTION 2 ü 150 MM DWELL + üv 2 UNIFORM MOTION 121 ü DIVIDED INTO 12 EQUAL PARTS Downloaded from hlayiso.com 3 ACCELERATION AND üw RETARDATION 7 y CAM DISPLACEMENT DIAGRAM 4 üx SIMPLE HARMONIC 721 y SCALE 360° = 150 MM y 5 LABEL + SCALE 1 SUB-TOTAL 2.1 19 3 Copyright reserved Please turn over

Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 2.2: LOCI (MECHANISMS) x x x ü CURVE QUALITY w x ü ü w w w ü x w A ü x x w w x w w w ü x ASSESSMENT CRITERIA üü DIVIDING CIRCLE INTO CONSTRUCTION OF 12 EQUAL PARTS uü 1 DIAGRAM 4 Downloaded from hlayiso.com x CONST. OF CIRCLE IN 12 ü 2 EQUAL PARTS 2 x CONSTRUCTION OF wü 3 LOCI 5 x LOCI OF POINT E xü 4 8 SUB-TOTAL 2.2 19 4 Copyright reserved Please turn over

Downloaded from hlayiso.com Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 3: ISOMETRIC v v v w v v vv w v w w v v w v v v v v v v v w v w v v v v v v v v v v v w v v v v x v v v v v x v v w xx CL v w x v v v v x vv v v v v v CL v x v v v v v v S ASSESSMENT CRITERIA ü üu 1 CONSTR' + PLACEMENT 221 v 2 ISOMETRIC LINES 30 20 w 3 NON ISOMETRIC LINES 5 x 321 u u 17 4 HALF CIRCLE + CONSTR' u CL 5 CENTRE LINES 1 10 TOTAL 42 5 Copyright reserved Please turn over

Downloaded from hlayiso.com Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 4: MECHANICAL ASSEMBLY TOP VIEW w w w u u CL CL Aw wA CL uu ü u w u u v CL v ASSESSMENT CRITERIA TOP VIEW üu 1 M14 NUT + WASHER 421 v 2 HANDLE 1 w 3 CUTTING PLANE 3 CENTRE LINES + CONVEN. CL 4 SYMMETRY LINES 2 SUB-TOTAL 1021 6 Copyright reserved Please turn over

Downloaded from hlayiso.com Engineering graphics and design / P2 NSC EC / September 2022 QUESTION 4: MECHANICAL ASSEMBLY FULL SECTION FRONT VIEW OF CUTTING PLANE A-A PENALTIES 1 WRONG SCALE -2 GAS VALVE • 2 PARTS NOT ASSEMBLED. -1 PER SCALE 1 : 1 • PART. MAX. -7. 3 WRONG HATCHING -2 zz z z uz z z zu TOTAL PENALTIES (-) u uu u y u uHu u y H v H y y v H v y y v y z z y H H H H y CL zz z y y CL Hw S wH y w w y | | y | H H | y H w w H z z y w H w y | H | H| ASSESSMENT CRITERIA | | H H | x x SECTIONAL FRONT VIEW | | | || uH 1 M14 NUT 521 H CL H x CL | vH | 2 M14 WASHER 221 z | | |z z wH 3 GLAND 5 | || | z H | H H{ H | xH 4 GLAND SEAL 221 | z{ H {z | | yH 5 HANDLE 1221 | | | | || || zH 6 SHAFT 1121 | H {H 7 SEAL 2 | | | | | | |H 8 HOUSING 2821 H 9 ASSEMBLY 7 | • 10 TITLE + SCALE 1 | | | CL CL 11 CENTRE LINES 221 SUB-TOTAL 8021 H 7 Copyright reserved