# Engineering Graphics and Design Grade 12 P2 2018 QP (Eng)

> Grade 12 Engineering Graphics and Design Paper 2 question paper from the Eastern Cape Mock Exam 2018 (English), 6 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/egd-p2-sept-2018-eng-d/e500c1da-ce94-4789-9094-0b1d5f6e20fd
- Updated: 2026-09-27
- Subject: Engineering Graphics and Design
- Grade: Grade 12
- Document type: Question paper
- Year: 2018
- Exam period: Eastern Cape Mock Exam
- Paper: 2
- Curriculum: CAPS
- Pages: 6

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## About this document

Engineering Graphic And Design · Grade 12 · Eastern Cape Mock Exam · 2018. 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.

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*GRDSE2*

### Page 2

Engineering Graphics and Design/P2

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QUESTION 1: ANALYTICAL (MECHANICAL)

HE

a

B42
20
P13

BASE [1]

M118 x2

CAP [2]

IMPELLER [3]
NUT [5]
“ALL UNDIMENSIONED RADII ARE R 3.
ALL DIMENSIONS ARE IN MILLIMETRES. SCALE: 1:2
PROGRAMME: AUTOCAD 2018 MATERIAL: CAST IRON
FILE NAME: pump3.dwg QUANTITY: 300 UNITS
DRAWING No. P3A-08 TREATMENT: NONE
MILLING
FnvsH POUsHeD of 1 GHANGENLET | sorrgan
J6OHUNTER STREET | _ REVISIONS DATE
DW PORT ELIZABETH Taw n: MaT 2017/09/10
ENGINEERING WORKS 041 4872188 | CHECKED: LP 2017/09/13
TITLE WATE R P U M P APPROVED: DW 2017/10/25

EC/SEPTEMBER 2018

Given:

Instructions:

A detailed drawing of a water pump, a title block and a table of questions.
The drawings have not been prepared to the indicated scale.

Complete the table below by neatly answering the questions, which all refer
to the accompanying drawings and the title block. [26]

QUESTIONS

ANSWERS

On what date was the drawing approved?

What is the name of the engineering firm?

Which indicated scale has been used?

How many water pumps must be produced?

What had to be changed before the drawing was approved?

What is the file name?

What roughness value is required on the machined surfaces?

How many surfaces, on the BASE, need to be machined?

clolrjlolalaloe|nr

Name the type of section the cutting plane L-L produced.

3

Name the type of section cutting plane M-M would produce.

Name the type of feature shown at 1

i)

What does the encircled feature at 2 indicate.

oe

What does the feature (line) at 3 indicate?

B

Name the feature at 4.

15

What does the "x 2" indicate in the M18 x 2 dimension on the
CAP?

16

What mistake was made with the sectioning of the CAP?

17

Determine the complete dimensions: A

18

Determine the complete radius at C.

19

In the box below, draw, in neat freehand, the SANS symbol for a bearing.

TOTAL | 26

ANSWER 19

NAME

NAME [2

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Engineering Graphics and Design/P2

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QUESTION 2: LOCI (CAMS)

Given:

* The shaft and follower detail of an industrial cam with
follower shown at its lowest position.

* The vertical centre line of the cam shaft as reference on
the drawing sheet.

The specifications for the movement are as follows:
© The cam shaft rotates anti-clockwise at constant velocity
for the first 270°
Over the first 60° the follower rises 27 mm
There is a dwell period for the next 45°.
Over the next 45° the follower rises a further 28 mm
There is a dwell period for the next 30°.
Over the next 60° the follower drops 15 mm.
se There is a dwell period for the next 30°
* Over the final 90° the follower returns to its original
position with simple harmonic motion

Instructions:

2.1. Draw, to scale 1: 1, the given view of the cam shaft and
follower using the vertical centre line as reference. The
arrow indicating the direction of rotation must be shown.

2.2 Drawa displacement graph with a scale of 30° equal to
10 mm and a follower displacement scale 1: 1 for the
given motions. Label the graph.

2.3. Project and draw the cam profile that would generate the
given motion.

+ © Show ALL construction [39]

REFERENCE LINE

CAM SHAFT AND FOLLOWER DETAIL

ASSESSMENT CRITERIA
1 | GRAPH 12
2 | FOLLOWER +sHAFT* |g
ARROW + GL
3 | ConstRUCTION 4
4 | CAM POINTS 8
5 | CURVE + QUALITY 7
TOTAL} 39
NAME
NAME [3

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Engineering Graphics and Design/P2

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QUESTION 3: ISOMETRIC DRAWING

Given:

The front view, top view and right view of a jig bracket and
cutting plane A-A.

The position of point S on the drawing sheet.

Instructions:
Using scale 1 : 1, convert the orthographic views of the jig
bracket into a sectional isometric drawing on cutting plane A-A.

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

* NO hidden detail is required [37]

WEB

67.

86

ASSESSMENT CRITERIA

1 | AUX’ VIEW + PLACING 2

3 | HEXAGON

2 | ISOMETRIC LINES 133
4
5

rs 4 | CIRCLE +CL

5 | SECTIONED SURFACE | 12)

TOTAL 37
NAME

NAME, [4

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a

ci

{ M14 NUT [7]

2

5

} 228 @14
E(S) HERE @
\ 0

24

WASHER [8]

76 44 , 120 , 92
30 24 50
L H 20 O14
i Lo \ 4 rea
t mo Faz TAR
al tL Bee
eo elo | / \40
3/8 8 P=FH
I Tie i
] a —_ aE : — i
| aiaaad # )\ Ls
HOLDER [2] \\ plac
@3 HOLES
by 3 DEEP
on 24 PCD 72
; 58 | | M4 x1
L2x 45° ‘
THREADED COLLAR [6] BEARING [5] SPACER [4] SHAFT [3]

EXPLODED ISOMETRIC DRAWING

m EC/SEPTEMBER 2018

EYE BOLT [9]

QUESTION 4: MECHANICAL ASSEMBLY

Given:

© The exploded isometric drawing of the parts of a
overhead pulley assembly, showing the position of
each part relative to all the others.

© Orthographic views of each of the parts of the
overhead pulley 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 overhead pulley assembly:

4.1 The half sectional front view of the over head
pulley assembly, on cutting plane A-A as seen from
the direction of the arrow shown on the exploded
isometric drawing. The left side of the front view
must be cut. The cutting plane, that runs vertically
through the centre of the assembly, is shown on
the right view of the bracket (part 1) and cuts
through point S

4.2 A right view without any hidden detail.

* ALL drawings must comply with the guidelines

contained in the SANS 10111.

NOTE:

* As indicated, align point S on the washer with point S
on the holder and point S on the eye bolt.

* Planning of the layout of the views is important.

* Show, in the sectional front view, THREE faces of the
M14 nut and ALL constructions.

* NO hidden detail is required

Add the following features to the drawing:

© The cutting plane A-A. [98]
PARTS LIST

PARTS QUANTITY, MATERIAL
41. BRACKETS 2 MILD STEEL
2. HOLDER 1 MILD STEEL
3. SHAFTS 2 MILD STEEL
4. SPACERS 4 MILD STEEL
5. BEARINGS 4 MILD STEEL
6. THREADED COLLARS 4 MILD STEEL
7, M14 NUT 1 MILD STEEL
8. WASHER 1 MILD STEEL
9. EYE BOLT 1 ‘CAST IRON
TITLE

OVERHEAD PULLEY

160 HUNTER STREET
DW PORT ELIZABETH

s G WORKS 6001
ENGINEERING WORK’ 041 487 2188

ALL DIMENSIONS ARE] ALL UNSPECIFIED.
IN MILLIMETRES. RADII ARE R4. [5|

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ASSESSMENT CRITERIA
SECTIONAL FRONT VIEW

1 | BRACKETS 10

2 | HOLDER a

3 | SHAFT ri

4 | SPACERS 4

5 | BEARINGS 6

7 | Nut 4

8 | WASHER 4

9 | EVE BOLT 1

SUB-TOTAL 62

ASSESSMENT CRITERIA
RIGHT VIEW
7 | BRACKET 4
2 | HOLDER 3
3 [Nut 3
4 | WASHER 4
5 [eve sout 3
6 | cUTTING PLANE 3
7 | assematy 12

SUB-TOTAL 36

TOTAL 98

NAME

NAME [6

Copyright reserved

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