# Engineering Graphics and Design Grade 12 P2 2024 QP (Eng)

> Grade 12 Engineering Graphics and Design Paper 2 question paper from the November 2024 NSC (English), 6 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/engineering-graphics-design-p2-nov-2024-eng/19c1014e-c33b-42c9-8668-1173fb37b36f
- Updated: 2026-09-27
- Subject: Engineering Graphics and Design
- Grade: Grade 12
- Document type: Question paper
- Year: 2024
- Exam period: November 2024 NSC
- Paper: 2
- Curriculum: CAPS
- Pages: 6

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## About this document

Engineering Graphic And Design · Grade 12 · November 2024 NSC · 2024. Question paper, 6 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

Text extracted from the PDF. Layout, diagrams and tables may not survive extraction.

### Page 1

basic education

Department:
Basic Education
REPUBLIC OF SOUTH AFRICA

NATIONAL

SENIOR CERTIFICATE

if ENGINEERING GRAPHICS AND DESIGN P2 “|
I

NOVEMBER 2024 J

MARKS: 100

TIME: 3 hours

This question paper consists of 6 pages.

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| Barcode label |
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DO NOT FOLD THE QUESTION PAPER IN HALF.

Copyright reserved

Confidential

INSTRUCTIONS AND INFORMATION

1. This question paper consists of FOUR questions.

2. Answer ALL the questions.

3. ALL drawings are in third-angle orthographic projection, unless otherwise stated.

4. ALL drawings must be prepared using pencil and instruments, unless otherwise
stated.

5. ALL answers must be drawn accurately and neatly.

6. ALL the questions must be answered on the QUESTION PAPER, as instructed.

7. ALL the pages, irrespective of whether the question was attempted or not, must

be re-stapled in numerical sequence in the TOP LEFT-HAND CORNER ONLY.
8. Time management is essential in order to complete all the questions.
9. Print your examination number in the block provided on every page.
10. Any details or dimensions not given must be assumed in good proportion.

FOR OFFICIAL USE ONLY
QUESTION | MARKS OBTAINED | } | SIGN MODERATED 2 | SIGN RE-MARKING 2| SIGN
1
2
3
4
TOTAL
2|0|0 2|0/0 2|0/0

FINAL CONVERTED MARK CHECKED BY

100

COMPLETE THE FOLLOWING:
CENTRE NUMBER

CENTRE NUMBER
EXAMINATION NUMBER

EXAMINATION NUMBER

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### Page 2

Engineering Graphics and Design/P2

NSC Confidential

DBE/November 2024

ANSWER 18

QUESTION 1: ANALYTICAL (MECHANICAL)

Given:
Two views of the assembled parts of a pin vice assembly, detailed views of the individual parts of the assembly drawn
to a different scale, a parts list, a title block and a table of questions. The drawings are not presented to the indicated

scales.

Instructions:
Complete the table below by neatly answering the questions, which refer to the accompanying drawings, title block

\ n
too mma) and mechanical content. [30]
| J Ju QUESTIONS ANSWERS
1 | What unit of measurement has been used on the drawing? 1
2 | On what date was the drawing prepared? 1
3. | What is the title of the drawing? 1
4 | Whatis the telephone number of the draughting company? 1
5_| If VIEW 1 is the front view, what would VIEW 2 be called? 1
6 | What material is required for the handle? 1
7 | What scale is indicated for the individual parts? 1
) 8 | How many 2 pins are there in a single pin vice assembly? 1
| | il 9 | How many pin vices must be manufactured? 4
x x] SECTION -Q
D) [E 10 | Name the type of section shown at A. 4
VIEW 1 vIEW2 aes fl E i
iS 3] | 41 | Name the type of section shown at B 1
ete GSI secrower @ ie What type of sect Id be produced by cutting plane P-P?
: fat type of section would be produced by cutting plane P-
A R x 12 yp pI y cutting p 1
SECTION S-S @ tJ 13 | How many surfaces of the pin vice assembly must be machined? 1
s| Is 44 | Name the part on which the depth of the threaded hole for the ;
clamp screw (part 6) would be measured
~ JAWS [2] ADJUSTING CONE [3] P (part)
15 | Determine the complete dimensions at: C: 2
it PARTS LIST
2 Bes 16 | Determine the complete angle at E. 1
4 | No. PART QUANTITY MATERIAL
cy With reference to the tolerance, determine the maximum and the | MAXIMUM: 1
7 4 | HANDLE 1 woop 7 jen :
{ i minimum size for the dimension at F. MINIMUM: 1
Sett) FR sil 2 [uaws 2 [siLveR STEEL
7 iat =] |! 4g | In the space provided above the views of the adjusting cone (ANSWER 18), use drawing A
2/2 | lz] 3 | ADJUSTING CONE 1 BRASS instruments to determine the centre point of the arc. Show ALL construction.
| {TMS
fo 4 | CLAMP ARM 2 STEEL 4g | Inthe space below (ANSWER 19), draw, in neat freehand, a machining symbol, with labels forthe |,
CLAMP ARM [4] CLAMP BRACKET [5] CLAMP SCREW [6] = | cawP Racker 7 SEL information and processes provided in the table, for the given surface.
1 14 § Louw screw 7 STEEL 90 | I the space below (ANSWER 20), draw, in neat freehand, the SANS 10111 conventional ;
FA 6 + I | 4 representation for a bearing
= = PIN @25)
7 (2,5) 2 STEEL TOTAL | 30
PIN 82,5 [7] PIN 22 [8] PIN 22 [9] 8 | PIN @2) 1 STEEL ANSWER To ANSWER 20
9 | PIN (@2) 4 STEEL
FILE NAME: CJ-10810 QUANTITY: 80 PIN VICES ALL UNSPECIFIED RADII 40,25
TOLERANCE:
DRAWING No, 025 SCALE [ 4:5 ARE 3 mm. 0,3 INFORMATION AND PROCESSES
CLIENT NAME: PRODUCTION METHOD GRINDING
CaRoLusewetters, | DRAWING, qyrocap agg | ALL DIMENSIONS ARE IN <4
VILJOEN STREET, CULLINAN u ROUGHNESS VALUE 05
XANDER DRAUGHTING CC. www ksmerwedraw.coza _| DRAWN BY: CHRIS P DATE: 21-05-2024 DIRECTION OF LAY PERPENDICULAR
7 CHADLIN LANE, CULLINAN ‘e
sre 00 © 028 685 1857 CHECKED BY: DIVAN DATE: 25-05-2024 | | acHiNING ALLOWANCE 02 EXAMINATION NUMBER
me PIN VICE APPROVED BY: JOHN | DATE: 27-05-2024 SURFACE
Oe EXAMINATION NUMBER [2

Copyright reserved

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### Page 3

Engineering Graphics and Design/P2

NSC Confidential

DBE/November 2024

XS,
Re

QUESTION 2: LOCI

NOTE: Answer QUESTIONS 2.1 and 2.2 ..

2.1: MECHANISM

Given:

* A schematic drawing of a mechanism
consisting of crank OA, connecting rod AB
and rocker CD

© The position of centre point O on the drawing
sheet

Specifications:

© The positions of centre point O and point C of
rocker CD are fixed.

* Connecting rod AB is pin-jointed to crank OA
at A.

* Rocker CD is pin-jointed to AB at D.

Motion:
As crank OA rotates for one complete rotation,
rocker CD oscillates around point C.

Instructions:

© Using centre point O, draw, to scale 1 : 1, the
given schematic drawing of the mechanism
and label ALL the given points.

© Trace the locus generated by point B for ONE
complete rotation of crank OA.

© Show ALL construction [193]

2.2: CAM

Given:
The bottom left-hand comer of the displacement graph, marked P,
on the drawing sheet.

Motion:

Acam starts at the maximum displacement of 64 mm and imparts

the following motion

© There is a dwell period for the first 30°.

* Itdescends to its minimum displacement over the next 90° with
uniform acceleration and retardation.

It rises 36 mm over the next 45° with uniform motion

* There is a dwell period for the next 30°.

# It then descends 22 mm over the next 30° with uniform motion.

* There is a dwell period for the next 45°.

* It returns to its original position over the last 90° with simple
harmonic motion

Instructions:

© Using corner P as the 0° position, draw, to a rotational scale of
120 mm = 360° and a displacement scale of 1: 1, the
displacement graph for the given motion

* Label the displacement graph and include the rotational scale.

* Show ALL construction. (183)

pL

fa

ASSESSMENT CRITERIA 2.2
1 |GRAPH CONSTRUCTION | 6
ASSESSMENT CRITERIA 2.1 2 |Pownts + cuRVE re
4 |GIVEN 63 3 LABELS 4
2 |CONSTRUCTION 5 PENALTIES (-)
3 |Locus oF B 8 SUBTOTAL 2.2 184
PENALTIES () SUBTOTAL 2.1 193 EXAMINATION NUMBER
TOTAL] 193 TOTAL] 38
EXAMINATION NUMBER [3

Copyright reserved

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### Page 4

Engineering Graphics and Design/P2

NSC Confidential

DBE/November 2024

oe

é

QUESTION 3: ISOMETRIC DRAWING

Given:

© The front view, top view and right view of a
casting

© The position of point P on the drawing sheet

Instructions:
Using scale 1 : 1, convert the orthographic views
of the casting into an isometric drawing

© Use P as the starting and lowest point of the
drawing.

* Show ALL construction

* NO hidden detail is required. [40]

INCOMPLETE
REGULAR
PENTAGON

10

20

60

|__,10,__30

30

(415 |_ 25
i

R40.

60°

130

|

|

|
Thee el

Lo P PP oo |

ASSESSMENT CRITERIA
1 |PLACING + AUX. VIEW 23
2 |BASE + PENTAGON 20
3. |UPPER PORTION 143

4 |CIRCLES+CONSTR. +CL} 3

PENALTIES (-)

TOTAL} 40
EXAMINATION NUMBER

EXAMINATION NUMBER: [4

Copyright reserved

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### Page 5

Engineering Graphics and Design/P2

NSC Confidential

DBE/November 2024

32

12 12, 20.12

aa M12

LEFT-END PLATE [1]

138
12

#

102

29

CYLINDER HOUSING [2]

S______-54

98

23

CONNECTING ROD [4]

ROD GUIDE [5]

EXPLODED ISOMETRIC DRAWING

20

M28 x2

220
{12,0
COUPLING [6]
35
SL
| B44 @48
on
al-
[5|
PISTON [7] PISTON SEAL [8]
118 10
be 18
7

QUESTION 4: MECHANICAL ASSEMBLY

Given:

The exploded isometric drawing of the parts of a hydraulic
cylinder assembly, showing the position of each part relative
to all the others

© Orthographic views of each of the parts of the hydraulic
cylinder assembly

Instructions:

* Answer this question on page 6.

* Draw, to scale 1: 1 and in third-angle orthographic projection,
the following views of the assembled parts of the hydraulic
cylinder assembly:

4.1 The right view

4.2 A half-sectional front view on cutting plane A-A. Show
the top half of the assembly in section, as seen from the
direction of the arrow on the exploded Isometric drawing
The cutting plane is shown on the right view of the right
end plate (part 3).

NOTE:

* Planning is essential.

* ALL drawings must comply with the SANS 10117 guidelines.

© The convention of symmetry may NOT be applied.

* Align point S on the connecting rod (part 4) with point S on
the cylinder housing (part 2).

* Show THREE faces of the M16 nut (part 10) on the
half-sectional front view.

* NO hidden detail is required. [92]

PARTS LIST
PART QUANTITY

MATERIAL

4 | LEFT-END PLATE 1 STAINLESS STEEL

2. | CYLINDER HOUSING 1 MILD STEEL

3. | RIGHT-END PLATE 1 CAST IRON

4 | CONNECTING ROD 1 STAINLESS STEEL

i

|

M16 NUT [10]

5 | ROD GUIDE 4 BRASS

7 | PISTON 4 ALUMINIUM ALLOY
8 | PISTON SEAL 1 RUBBER

9 | BOLT 2 MILD STEEL

ENGINEERING CC www.strong.co.za

‘® 092 400 2590

HYDRAULIC CYLINDER

©Og

ALL DIMENSIONS ARE IN MILLIMETRES.

Copyright reserved

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### Page 6

Engineering Graphics and Design/P2 NSC Confidential DBE/November 2024

FOR OFFICIAL USE ONLY

INCORRECT ORTHOGRAPHIC PROJECTION

INCORRECT OVERALL SCALE

INCORRECT HATCHING

PARTS NOT ASSEMBLED

TOTAL PENALTIES (-)

ASSESSMENT CRITERIA
RIGHT VIEW
2 | BOLTS 4
3 | COUPLING 33
4 | M16 NUT 4
SUBTOTAL 164
HALF-SECTIONAL FRONT VIEW
4 | LeFT-END PLATE | 104
CONNECTING
4 | ROD+PISTON+ 11
SEAL
5 | ROD GUIDE 3
6 | COUPLING 6
7 | BOLTS 14
8 |wt6NuT 4
SUBTOTAL 623
GENERAL
1 | CENTRE LINES 3
2 | assemeLy 10
SUBTOTAL 13
TOTAL} 92
PENALTIES (-)
GRAND TOTAL

EXAMINATION NUMBER

EXAMINATION NUMBER: [6

Copyright reserved

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