Technical Designs And Drawing Question Paper

Technical Designs And Drawing

Course:Bachelor Of Science In Environmental Health

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE
(ENVIRONMENTAL HEALTH)
HEH 207:
TECHNICAL DESIGNS AND DRAWING
DATE: WEDNESDAY 9TH SEPTEMBER 2009 TIME: 11.00 A.M. – 1.00 P.M.
=================================================================
INSTRUCTIONS
SECTION A
Answer All question from this section.

1.
a)
Identify FOUR types of drawing papers citing specific use of each. (2 marks)

b)
Illustrate the relationship between the dimensions of A-size series drawing

papers.

(2 marks)

2.
With aid of a sketch, outline the correct procedure of setting a drawing paper on the
drawing
board. (4
marks)

3.
Briefly discuss FOUR principles of good technical lettering.

(4 marks)

4.
a)
Using freehand, construct the isometric view of a circle.

(2 marks)

b)
Outline the procedure of drawing a cube in isometric projection. (2 marks)

5.
Briefly describe basic technical drawing
equipment.
(4
marks)
Page 1 of 4

SECTION B
Answer question ONE and any TWO questions from this section.

1.
a)
Discuss the types of building drawings that are found on a construction site.

(10 marks)

b)
Figure 1 shows the isometric view of an object. To a scale of 1:10, draw the

plan, front elevation and side elevations in THIRD angle projection.

(10 marks)

2.
Figure 2 shows the floor plan of a sentry building. To a scale of 1.100, draw the front

elevation, side elevations and section Y-Y.

(15 marks)

3.
Figure 3 shows the isometric view of an object. In THIRD angle projection draw:
The plan
Front elevation
Right hand side elevation
Scale:
1:10
(15
marks)

4.
Figure 4 shows the orthographic views of a concrete block in FIRST angle projection.

To a scale of 1:5, draw the isometric view of the block with ‘LP’ as the lowest point.

(15 marks)

Page 2 of 4

Fig. 1

Floor
Plan
Fig
.2

Specifications
Roof
Wall Plate
-
100 x 50 mm
Rafters
-
100 x 50 mm
Purlins
- - 75
x
50
mm
Pitch
-
300
Covering
-
Galvanized corrugated iron sheets
Type
-
Couple

Wall
-
200 mm thick machine dressed stones

Door
-
900 x 2100 mm high

Window
-
900 x 1050 mm high

Floor
-
Ceiling height – 2400 mm

Page 3 of 4

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