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PART C
Answer any two full questions, each carries 10 marks.

Define Space to Mounting height ratio.

A new uniform lighting system is to be installed in an industrial building. The
building measures 100’x150’, and has a 21’ ceiling. The height of the fixture
including the mounting bracket is 3’ and the work plane height is also 3’, so the

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distance from the bottom of the fixture is 15’. A zonal cavity method calculation

indicates that 41.7 luminaries are required. This number is approximated to 42.
Calculate

i) Spacing, Sapprox

11) Approx. no. of fixture per row, ۸۹×,

111) Approx. no. of fixture per column, ‏بط‎

iv) Total no. of fixtures

೪) Percentage of design illumination

vi) Actual fixture spacing in row Sow

vii) Actual fixture spacing in column ഭം
Illustrate atleast five fixtures used for outdoor lighting?

Explain the various types of lamps used in street lighting.
What are the requirements of a good street lighting system?
Explain the constraints in the selection of lamp and luminaire in street lighting.

PART 0
Answer any two full questions, each carries 10 marks.
How are the projectors in flood lighting classified according to the beam?

Describe the area of application of each type.

List out any five features of hospital lighting.
Describe any five characteristics of statue lighting.
Explain Aesthetic Flood Lighting.

List out the requirements of a good Sport lighting.

What are the main features to be considered in auditorium lighting?

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