# Engineering Graphics and Design Grade 12 P2 2017 QP (Eng)

> Grade 12 Engineering Graphics and Design Paper 2 question paper from the NSC Supplementary Exam 2017 (English), 6 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/engineering-graphics-design-p2-feb-march-2017-eng/9399a34e-6926-4507-9c00-e0ceb7996089
- Updated: 2026-09-27
- Subject: Engineering Graphics and Design
- Grade: Grade 12
- Document type: Question paper
- Year: 2017
- Exam period: NSC Supplementary Exam
- Paper: 2
- Curriculum: CAPS
- Pages: 6

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## About this document

Engineering Graphic And Design · Grade 12 · NSC Supplementary Exam · 2017. 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
« y) Basic Education
"4 REPUBLIC OF SOUTH AFRICA

NATIONAL

SENIOR CERTIFICATE

.

i ENGINEERING GRAPHICS AND DESIGN P2 \

i] iit

i FEBRUARY/MARCH 2017 j
Y

MARKS: 100

TIME: 3 hours

This question paper consists of 6 pages.

INSTRUCTIONS AND INFORMATION

This question paper consists of FOUR questions.

Answer ALL the questions.

ALL orthographic drawings are in third-angle projection, unless otherwise stated.
ALL drawings must be completed using instruments, unless otherwise stated.
ALL answers must be drawn accurately and neatly.

ALL the questions must be answered on the QUESTION PAPER as instructed.
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. Proper planning 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.

NOARON>

FOR OFFICIAL USE ONLY

QUESTION |] MARKS OBTAINED | 3 | SIGN MODERATED 3] 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

Copyright reserved

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### Page 2

Engineering Graphics and Design/P2

DBE/Feb.-Mar. 2017

40
M22.

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QUESTION 1; ANALYTICAL (MECHANICAL)
Given:

questions. The drawings have not been prepared to the indicated scale.

M12

Instructions:

block.

An assembly drawing showing two views of a gas regulator assembly, a parts list, a title block and a table of

Complete the table below by neatly answering the questions, which refer to the accompanying drawing and the title

[30]

QUESTIONS

ANSWERS

What is the title of the drawing?

What is the web address of the company?

What method of machining is prescribed?

VIEW 2
Which drawing program was used to prepare the drawing?

On what date was the drawing drawn?

Who approved the drawing?

What material is used to manufacture the seal?

What is VIEW 1 called?

olo}/nljolalaleo|nr

Name the feature at A.

}

Determine the complete dimensions at B: Cc:

11 | Measure the angle at E

12 | Why is the part at F filled in solid?

13 | What is indicated by the feature at G?

14 | Name the type of finish at H

23
a

Refer to the parts list and identify the part at J

How many surfaces of the gas regulator assembly must be

o16

16

machined?

13

17 | Why is the feature at K tapered to one side only?

| 40 18 | Insert the cutting plane on VIEW 2 and label it S-S.

PARTS LIST

VIEW 1 19 | In the space below (ANSWER 19), draw, in neat freehand, the convention for a coil spring. 3

PART

QUANTITY

MATERIAL 90 | In the space below (ANSWER 20), draw, in neat freehand, the symbol for the projection system

1 | PRIMARY BASE

1

used.

BRASS APPROVED: SOON DATE: 2018-12-06

2 | INLET

1

BRASS CHECKED: VERNON DATE: 2015-11-10

TOTAL | 30

ANSWER 19:

e

INLET SEAL

RUBBER DRAWN: WIKUS DATE: 2015-10-31 Convention for a coil spring

4 | INLET SCREW

BRASS DRAWING PROGRAMME: AUTOCAD 2016

VALVE ASSEMBLY

BRASS ALL UNSPECIFIED RADII ARE R2. SCALE 1:1

VALVE SPRING

METHOD OF MACHINING: MILLING

‘SPRING STEEL

DIAPHRAGM ASSEMBLY

DIAPHRAGM

STAINLESS STEEL THE ONE GAS a) soe eee
www.theonegas.coza
RUBBER COMPANY

elelrlola

PRESSURE SPRING

‘= 012 367 8910
SPRING STEEL | TITLE

ANSWER 20:
Projection symbol

10 | CaP

EXAMINATION NUMBER:

BRASS GAS REGULATOR

14 | OUTLET

EXAMINATION NUMBER [2

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= INNA

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### Page 3

Engineering Graphics and Design/P2

xo
ae

é

°

QUESTION 2: LOCI
NOTE: Answer QUESTIONS 2.1 and 2.2.

2.1 LOCI (HELIX)

Given:

* A front view and left view of the shaft of an
auger with Q indicating the starting position pe a - -

* The position of point P on the drawing
sheet

234

if, " AUGER SHAFT DETAIL
Specifications:

Copyright reserved

* Nominal diameter: 274mm
* Pitch : 72mm
© Turns : ONE AND A HALF
* Direction : Left-handed
Instructions: ASSESSMENT CRITERIA 2.1
Draw, to scale 1: 1, the complete front view | 1 | GIVEN+CENTRELINES | 3
and left view of the auger. > | CONSTRUCTION ry
Show ALL construction. 3 | OUTER HELIX 53
* NO hidden detail is required. [23]
4 | INNER HELIX + SHAFT 43
5 | CURVE QUALITY 2
PENALTIES ()
SUBTOTAL 23
2.2 CAM
Given:

The bottom left 0° starting position of the displacement graph on the answer sheet

Motion:

* The follower rises with uniform motion for 15 mm over the first 30° of rotation.

« There is a dwell period for the next 15°.

* The follower rises with simple harmonic motion for 65 mm over the next 135°, to the
maximum displacement of 80 mm.

« There is a dwell period for the next 90°.

« The follower returns with uniform acceleration and retardation to the original position over the
rest of the rotation.

Instructions:
Draw, to a displacement scale of 1: 1 anda
horizontal scale of 360° = 180 mm, the

complete displacement graph for the required ASSESSMENT CRITERIA 2.2
motion.
1 | CONSTRUCTION 6
* Label the graph and indicate the horizontal > | poivts + cuRVES 9
scale.
Show ALL construction [16] | 3 | LAsets 1
PENALTIES ()
2.2 SUBTOTAL 16
2.1 SUBTOTAL 23
TOTAL | 39
EXAMINATION NUMBER
EXAMINATION NUMBER [3

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Engineering Graphics and Design/P2

xo
ae

é

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QUESTION 3: ISOMETRIC DRAWING

Given:
© The front view and top view of a bracket
© The position of point S on the drawing sheet

Instructions:
Using scale 1 : 1, convert the orthographic views of the
bracket to an isometric drawing.

* Make S the lowest point of the drawing.
* Show ALL construction

60

* NO hidden detail is required. [39]
58
45
3|

58

36
T
I 2
| 3|
'
i ces ©
1} (ote ©
|| ial
H
ASSESSMENT CRITERIA
4 | AUXILIARY VIEW + a
PLACEMENT
2 | FRONT + REAR SECTION 25
3 | HEXAGON 4
4 | CIRCLE + CL 8
PENALTIES (-)
TOTAL| 39
EXAMINATION NUMBER
EXAMINATION NUMBER [4

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### Page 5

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QUESTION 4: MECHANICAL ASSEMBLY

Given:
o * Orthographic views of each of the parts of a tension pulley
"| assembly
an * The exploded isometric drawing of the parts of the tension

pulley assembly, showing the position of each part
relative to all the others

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

I Ch) WASHER [8] M12 NUT [9] the tension pulley assembly:
4.1 The front view as seen from the direction of the

arrow shown on the exploded isometric drawing

|
8 7- Le- | + 4.2 Ahalf-sectional top view on cutting plane A-A
i Show the front haif in section, in accordance with
g| Hl the cutting plane that is shown on the left view of
+P t ri PULLEY [7] the housing (part 1).
i] 4.3. The left view
5 _-| 5 —-| |. 5
L | | NOTE:
50 20
* Planning is essential
HOUSING [1] + ALL drawings must comply with the guidelines contained

in the SANS 10111.
* The convention of symmetry may not be applied.

o10 © The spring (part 4) must be drawn in convention and in
neat freehand.
« Show THREE faces of the M12 nut in the top view.
* Add cutting plane A-A.
gq gq * NO hidden detail is required [92]
BUSH [6]
PARTS LIST
PART QUANTITY MATERIAL
1 | HousING 1 MILD STEEL
4 me 2 | FORK 1 CAST IRON
ois f
coy 3 [Pin 1 MILD STEEL
cee
] 4 | SPRING 1 SPRING STEEL
405 Es
2 3 5 | M1280LT 1 MILD STEEL
FORK [2] 2
Al i 6 | BusH 2 BRASS
Vy e 1 8 | WASHER 1 MILD STEEL
| _.| Mit2
9 | wiz. nut 1 MILD STEEL
| T ey _| “TENSION PULLEY
_— “ EXPLODED ISOMETRIC DRAWING 54 PEARL ROAD
GENERAL PERSEVERANCE
6000
Bon M12 BOLT [5] ENGINEERING WORKS #R pei 95 1600
ALL DIMENSIONS ARE | ALL UNSPECIFIED = E
— — ONION — I

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### Page 6

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FOR OFFICIAL USE ONLY

Cg INCORRECT ORTHOGRAPHIC PROJECTION
é

INCORRECT SCALE

INCORRECT HATCHING

PARTS NOT ASSEMBLED

TOTAL PENALTIES (-)

ASSESSMENT CRITERIA
FRONT VIEW
1 | Housine + PIN EB
2 | FORK 4
3 | PULLEY 1
4 M2 BOLT * WASHER + 6
SUBTOTAL 14
SECTIONAL TOP VIEW
1 | HOUSING + PIN 7
2 | FORK 103
3 | M12 BOLT 7
4 | BUSH 4
5 | PULLEY 7}
6 | WASHER + m2 NUT a4
SUBTOTAL 404
LEFT VIEW
4 | HOUSING 43
2 | FORK 13
3 | SPRING 2
4 | BUSH 1
5 | PULLEY 43
g | MIEBOLT +wasHIER+ | 4
SUBTOTAL 22
GENERAL
1 | CENTRE LINES 63
2 | ASSEMBLY 9
SUBTOTAL 154
TOTAL | 92
PENALTIES (-)
GRAND TOTAL
EXAMINATION NUMBER

INNA sameness 18
Copyright reserved SEAS TOE DUCAT IONS

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