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Installation Technology I Question Paper

Installation Technology I

Course:Diploma In Medical Engineering

Institution: Mount Kenya University question papers

Exam Year:2009

MT KENYA UNIVERSITY
SCHOOL OF PURE AND APPLIED SCIENCES
DEPARTMENT OF ENGINEERING

INSTALLATION TECHNOLOGY I
UNIT CODE:PEC 1117 TIME:2 HOURS

INSTRUCTIONS:
*Section A is Compulsory
*Attempt any two questions in section B

SECTION A
1a)I)State any five factors affecting the choice of wiring system.
II)State four advantages for the trunking systems.
III)Differentiate between flush, mult-compartment and skirting trunking as a form of
trunking system. (15 marks)

b)I)Outline how you would carry out first aid on the following victims;
*Burns
*Chemical burns
*Wounds
*Electric shock
II)List the safety practices when using the;
*Grinding machines
*Drilling machines
*Letter machines (15 marks)

SECTION B

2a)I)Define the term 'final sub circuit'.
II)State four advantages and disadvantages of sheathed wiring system. (10 marks)

b)I)Differentiate between luminous intensity and luminous flux.
II)With an aid of a diagram differentiate between ring circuit and radial circuit
(10 marks)

3a)I)A light source of 900 calderas is situated 9m above a working surface.
*Determine the illuminance directly below the source. (10 marks)

b)I)Determine what would be the illuminance of the lamp if moved to a position 4m from
the surface.
II)Explain how the following factors may affect the current rating of cables.
*Disposition
*Type of sheath (10 marks)

4a) Describe each of the following accessories;
I)Ceiling rose
II)Consumer control unit
III)Plug
IV)Sockets (12 marks)

b)With the aid of a circuit diagram, show a lightly point controlled from three position
by use of two 2-way switches and an intermediate switch. (8 marks)

Installation Technology I Question Paper

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