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Prac 2 Drawing

This document provides instructions for a practical assignment in engineering drawing. [It outlines] 3 sections - Section A contains 2 questions worth 10 marks each, Section B contains 3 questions worth 10, 20, and 25 marks respectively, and Section C contains 1 compulsory 10 mark question and a choice of 2 other questions worth 20 marks each. The document provides figures to reference for the drawing questions and instructs students to use specific scales and include dimensions. It also asks students to name symbols, draw diagrams, and label components for power and control systems.

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Oscar Khanye
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40 views8 pages

Prac 2 Drawing

This document provides instructions for a practical assignment in engineering drawing. [It outlines] 3 sections - Section A contains 2 questions worth 10 marks each, Section B contains 3 questions worth 10, 20, and 25 marks respectively, and Section C contains 1 compulsory 10 mark question and a choice of 2 other questions worth 20 marks each. The document provides figures to reference for the drawing questions and instructs students to use specific scales and include dimensions. It also asks students to name symbols, draw diagrams, and label components for power and control systems.

Uploaded by

Oscar Khanye
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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NATIONAL CERTIFICATE

IN

ELECTRICAL ENGINEERING

SUBJECT: ENGINEERING DRAWING. PRACTICAL ASSIGNMENT 2

INSTRUCTIONS TO CANDIDATE

SECTION A

Answer all questions. Each question carries 10 marks

SECTION B

Answer all questions. Each question carries 10 marks.

SECTION C

(i) Question 1 is compulsory, and it carries 10 marks.

(ii) Answer any ONE question out of the remaining TWO questions. The question
carries 20 marks.

ALL DIMENSIONS ARE IN mm.

SECTION A

QUESTION 1

A triangle has two sides 100m and 80mm. The included angle is 40°. Draw the
triangle and construct the circle which will touch all three sides of the triangle.
[10]
QUESTION 2

Draw the casting shown in fig 31 full size. Construction lines must be clear.
[10]
SECTION B

QUESTION 1
(a) Make a fully dimensioned Drawing in Third Angle projection of the bearing
shown in fig 2. The two holes have a diameter of 30mm. [20]

(b) Draw the projection symbol [5]

Use scale 1:1

QUESTION 2
Fig 3 shows an outside front elevation and an outside plan of a simple bearing.
Draw, in first angle orthographic
projection, the
following three views
of the bearing:

(a) The outside front


elevation

(b) A sectional side


evevation on A-A

(c) A sectional plan on B-B.

Dimension the views.

Use a scale of 1:1.


[25]

QUESTION 3
(a) Draw an isometric view of the bearing shown orthographically in fig 5.

(b) Do not insert dimensions

Use scale 1:2. [25]

SECTION C

QUESTION 1
From the diagram of fig 6,name the symbols numbered from 1 to 5.

QUESTION 2

(a) Draw the power and control diagram for a direct-on-line motor starter.

(b) label the diagram.

QUESTION 3

(a) Draw the diagram of a 240V/ 12V power supply.


(b) Label all components of the block diagram.

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