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Illumination

Illumination
Which lamps can be directly connected to a solar cell?

 Incandescent
 Metal Halide
 Compact Fluorescent
 LED

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Illumination
Which lamp has the best Colour Rendering Index (CRI)?

 Fluorescent
 High pressure sodium vapour
 LED
 Incandescent

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Illumination
A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illumination at centre of the area is

 18.5 lux.
  12.5 lux.
 17.5 lux.
  13.5 lux.

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Illumination
___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions.

  Absorption factor.
  Depreciation.
  Maintenance.
  Utilization.

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Illumination
Total flux or lumens required in any lighting scheme depends inversely on

  reduction factor.
  reflection factor.
  utilization factor.
None of these

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Illumination
Candela is the unit of which?

 Wavelength.
 Frequency.
 Luminous intensity.
 Luminous flux.

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MORE MCQ ON Illumination

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