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Illumination
Q1.Which Lamp Has the Best Colour Rendering Index (CRI)?
LED
Fluorescent
Incandescent
High Pressure Sodium Vapour
Correct Option :3
Q2.Candela is The Unit of Which?
Wavelength.
Luminous intensity.
Luminous flux.
Frequency.
Correct Option :2
Q3.which Lamps Can be Directly Connected to a Solar Cell?
Incandescent
Metal Halide
Compact Fluorescent
LED
Correct Option :4
Q4.What is The Work of a Driver in Case of an LED?
A. To Convert AC to DC
B. To Convert DC to AC
Both ‘A’ and ‘B’
D. None of These
Correct Option :1
Q5.What will be The Number of Lamps, Each Having 300 Lumens, Required to Obtain an Average Illuminance of 50 Lux on a 4m × 3m Rectangular Room?
2
4
5
6
Correct Option :1
Q6.Which Among The Following Lamps Has The Maximum Burning Hours?
LED.
Incandescent.
Metal Halide
Compact Fluorescent.
Correct Option :1
Q7.Wave Length For Red Colour is Around
400 NM
500 NM
600 NM
700 NM
Correct Option :4
Q8.full form of CFL
Comprehensive force liquid
compact fluorescent lamp
compact fire load
none
Correct Option :2
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