GRADE 11 / GRAAD 11 Vraestel 2 / Paper 2. June / Junie 2015 ENGINEERING GRAPHICS & DESIGN INGENIEURSGRAFIKA EN ONTWERP TOTAL / TOTAAL

Transcription

1 INSTRUCTIONS AND INFORMATION. The paper consists of questions.. Answer ALL questions.. Use scale : unless stated otherwise.. All questions must be answered on the given answer sheets. 5. All answer sheets must be handed in irrespective of whether the question was attempted or not. 6. Print your name in the block provided on every answer sheet. INSTRUKSIES EN INLIGTING. Die vraestel bestaan uit vrae. eantwoord ALLE vrae. Gebruik skaal : tensy anders gevra.. Alle vrae moet op die gegewe antwoordblaaie beantwoord word 5. Alle antwoordvelle moet ingehandig word, ongeag of die vrae beantwoord is of nie. 6. Drukskryf jou naam in die blokkie voorsien op elke antwoordvel. GRADE / GRAAD Vraestel / Paper June / Junie 05 ENGINEERING GRAPHICS & DESIGN MODERATED MARK GEMODEREERDE PUNT INGENIEURSGRAFIKA EN ONTWERP TOTAL / TOTAAL 50 COMPLETE THE FOLLOWING: VOLTOOI DIE VOLGENDE: NAME / NAAM MARKS / PUNTE: 50 TIME / TYD: ½ hours/ure SCHOOL / SKOOL

2 QUESTION : ANALYTICAL (MECHANICAL) GIVEN Four views of a steering bracket with a title block and table of questions. A INSTRUCTIONS. Complete the table below by neatly answering the questions, which all refer to the accompanying drawings and the title block. Show all calculations. [9] QUESTIONS ANSWERS On what date was the drawing first checked? C From what material is the steering bracket manufactured? VIEW Which drawing method was used to create these drawings? How many threaded holes are there in this drawing? How many sets of drawings are there? 6 What is the tolerance allowed on the dimentions? Ø70 DRILL Ø5 THRO M0 X 7 DEEP F 7 How deep must the M0 thread be? 8 What is feature A called? E 9 Determine the dimension at R0 PCD 0. D 5 Ø98 Ø0 Ø Ø Ø7 X VIEW 0 What is the feature C called? What is the size of angle D? What is the size of the hole marked E? What is the size of the arc marked F? Determine the dimensions at G VIEW VIEW 5 What type of section is shown in VIEW? 6 What type of section is shown on VIEW? 7 What does the letters P.C.D. stand for? ALL DIMENSIONS ARE IN MILLIMETERS UNLESS OTHERWISE SPECIFIED, TOLERANCES ON DIMENTIONS ARE ALL UNSPECIFIED RADII ARE R DRAWING PROGRAM: AUTOCAD 0 DRAWN Y : JP DATE : 0//0 CHECKED Y : SvR DATE : 5/0/0 APPROVED : DE DATE : 7/0/0 SCALE : 8 How many Ø0 holes need to be drilled in the bracket? DATE CHANGED Y REVISION DESCRIPTION 9 What would VIEW be called? DRAWING SET NO. VAN 6 MATERIAL : CAST IRON 0 Draw the cutting plane located on VIEW, for the sectional FILE NAME : S-8-0 HEAT TREATMENT : NONE VIEW, and label it A-A. PROCAST In the box below (ANSWER ) draw, in neat freehand, the symbol for the projection system used. WESSTRAAT MATATIELE ANSWER TOTAL 9 VERVAARDIGERS 70 STEERING RACKET

3 QUESTION : ISOMETRIC DRAWING GIVEN The front -, top -, and left views of a TOOL in third angle ortographic projection The position of point on the answersheet INSTRUCTIONS Convert the ortographic views of the tool into an isometric drawing. Use scale : Make corner the lowest part of the drawing No hidden detail is required Show all necessary constructions Ø8 R R5 0 9 ASSESSMENT CRITERIA PLACING ISOMETRIC LINES NON -ISOMETRIC LINES ISOMETRIC CIRCLE 8 CIRCLE CONSTRUCTION CENTRE LINES TOTAAL 7

4 6 QUESTION : MECHANICAL ASSEMLY Ø0 5 R 8 8 Ø 6 Ø6 USH Ø Ø Ø8 6 HOUSING Ø Ø Ø 8 5 SHAFT A Ø 0 8 S R5 R PIN 8 M 0 8 Ø 0 8 Ø Ø5 7 WASHER PARTS LIST 0 PART QUANTITY MATERIAL M 0 M0 NUT 5 S. ASE CAST IRON. SHAFT MILD STEEL. HOUSING CAST IRON. USH RONZE 5. GREASE NIPPLE CAST IRON 6. PIN MILD STEEL 7. W ASHER MILD STEEL 8. NUT MILD STEEL GIVEN : + The explodedisometric drawing of the parts of a shaft support assembly, showing the position of each part relative to the others. + Ortographic views of each of the parts of the shaft support assembly. + Point S as a reference point on the answersheet INSTRUCTIONS + Answer the question on the answersheet provided + Draw, to scale : and in third angel ortographic projection, the following views of the of the assembled parts of the shaft support assembly A sectional front view, on the 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 base (part ) The left view + All the drawings must comply with the guidelines contained in the SAS0 NOTE + Show three sides of the nut in the sectional front view + Show all the constructions for the nut + No hidden detail is required [9] Insert the following detail to the drawing + The cutting plane A-A + Label the sectional view: SECTION A-A SCALE : 9 9 A ALL DIMENSIONS ARE IN MILLIMETERS ALL UNSPECIFIED DADII ARE R DRAWING PROGRAME CAD 0 DRAWN Y: JS DATE : 8//0 CHECKED Y : AC DATE : 0/0/0 APPROVED Y: F DATE : 5/0/0 ASE EVERY SHAFT MANUFACTURING SHAFT SUPPORT UFFALO STREET MTHATHA 600

5

6

7

8 QUESTION ANSWERSHEET ASSESSMENT CRITERIA LEFT VIEW + GENERAL POSSILE OTAINED MODERATED. ASE. HOUSING. SECTION A-A CENTRE LINES 5 LAELS HATCHING ASSEMLY 7 SUTOTAL 6 s SECTIONAL FRONT VIEW POSSILE OTAINED MODERATED. ASE 6. HOUSING. USH. GREASE NIPPL E 6 5. SHAFT 7 6. PIN 7. WASHER 8. NUT 8 SUTOTAL 7 TOTAL 9

9

10

11

12 QUESTION : ANALYTICAL (MECHANICAL) GIVEN Four views of a steering bracket with a title block and table of questions. A INSTRUCTIONS. Complete the table below by neatly answering the questions, which all refer to the accompanying drawings and the title block. Show all calculations. [9] QUESTIONS ANSWERS C On what date was the drawing first checked? From what material is the steering bracket manufactured? 5/0/0 CAST IRON VIEW Which drawing method was used to create these drawings? How many threaded holes are there in this drawing? 5 How many sets of drawings are there? 6 What is the tolerance allowed on the dimentions? CAD F 7 How deep must the M0 thread be? 7mm Ø70 DRILL Ø5 THRO M0 X 7 DEEP 8 What is feature A called? E 9 Determine the dimension at RI / WE Ø0 R0 PCD 0. D 5 Ø98 Ø0 Ø Ø Ø7 X VIEW A 0 What is the feature C called? What is the size of angle D? What is the size of the hole marked E? What is the size of the arc marked F? Determine the dimensions at G VIEW VIEW 5 What type of section is shown in VIEW? 6 What type of section is shown on VIEW? CHAMFER 0 Ø5 Ø0 / R 0 8 mm HALF - SECTION FULL - SECTION 7 What does the letters P.C.D. stand for? PITCH CIRCLE DIAMETER 8 How many Ø0 holes need to be drilled in the bracket? ALL DIMENSIONS ARE IN MILLIMETERS UNLESS OTHERWISE SPECIFIED, TOLERANCES ON DIMENTIONS ARE ALL UNSPECIFIED RADII ARE R DRAWING PROGRAM: AUTOCAD 0 DRAWN Y : JP DATE : 0//0 CHECKED Y : SvR DATE : 5/0/0 APPROVED : DE DATE : 7/0/0 SCALE : DATE CHANGED Y REVISION DESCRIPTION 9 What would VIEW be called? LEFT VIEW DRAWING SET NO. VAN 6 MATERIAL : CAST IRON A 0 Draw the cutting plane located on VIEW, for the sectional FILE NAME : S-8-0 HEAT TREATMENT : NONE VIEW, and label it A-A. PROCAST () In the box below (ANSWER ) draw, in neat freehand, the symbol for the projection system used. WESSTRAAT MATATIELE ANSWER TOTAL 9 VERVAARDIGERS 70 STEERING RACKET () MEMO

13 ASSESSERINGSKRITERIA PLASING ISOMETRIESE LYNE NIE-ISOMETRIESE LYNE ISOMETRIESE SIRKEL 9 SIRKELKONSTRUKSIES SENTERLYNE TOTAAL 8 MEMO

14 A C A H H C H 5 5 H 5 H H 6 5 S 7 H H C 7 H 5 H H H QUESTION MEMO