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Installation Technology Iii Question Paper

Installation Technology Iii

Course:Diploma In Medical Engineering

Institution: Mount Kenya University question papers

Exam Year:2011

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

TITLE:INSTALLATION TECHNOLOGY III
UNIT CODE:PEC 2225 TIME:2 HOURS
DATE:MARCH 2011 MAIN EXAM

INSTRUCTIONS:
*Answer all the questions in section A
*Answer any two questions in section B

SECTION A
1.a)Define the following terms as used in illumination
I)Maintenance
II)Coefficient of utilization
III)Luminous flux
IV)Illuminance (4 marks)

b)A working area at bench level is to be illuminated to a value of 300lx using 85w single
fluorescent fitting having an efficiency of 80lumens/watt. The work area is 8m by 6m.
The MF is 0.8 and CU is 0.6. Calculate the number of fittings required. (4 marks)

c)Explain the difference between unit equipment and uninterruptible power supply(UPS).
(4 marks)
d)Illustrate using a diagram how a change over switch operates. (5 marks)

e)Differentiate between transmission and distribution. (2 marks)

f)Show using figures how power is generated and stepped until the figures that reaches a
single phase consumer. (3 marks)

g)Differentiate between inspection and testing. (2 marks)

h)Explain six areas where inspection is mostly done. (6 marks)

SECTION B
2 .Explain in details five testings on installation as required by the I.E.E rgulations.
(20 marks)
3a)Explain five importances of national grid. (5 marks)
b)Explian using diagrams the three methods of starting fluorescent lamps. (15 marks)

4a)Explain four sources of emergency power supply. (10 marks)
b)Explain using diagrams the difference between high pressure mercury vapour lamps and low
pressure mercury vapor lamps. (10 marks)

Installation Technology Iii Question Paper

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