|
Illumination can be expressed in ___
|
|
1
|
184
|
July 4, 2023
|
|
The work of ballast in a fluorescent tube is to ___
|
|
0
|
168
|
June 28, 2023
|
|
___ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions
|
|
0
|
234
|
June 28, 2023
|
|
The illumination of the surface varies directly with cosine of ___
|
|
0
|
184
|
June 28, 2023
|
|
Luminous efficiency of a fluorescence lamp is ___
|
|
0
|
185
|
June 28, 2023
|
|
Which of the following statement is correct?
|
|
0
|
197
|
June 28, 2023
|
|
Unit of luminous flux is ___
|
|
0
|
183
|
June 28, 2023
|
|
Wave length for red colour is ___
|
|
0
|
177
|
June 28, 2023
|
|
Total flux or lumens required in any lighting scheme depends inversely on ___
|
|
0
|
274
|
June 28, 2023
|
|
Luminous efficacy of a typical HPSV lamp is ___
|
|
0
|
166
|
June 28, 2023
|
|
Which among the following lamps has the maximum burning hours?
|
|
0
|
201
|
June 28, 2023
|
|
The illumination at a point 5 meters below ___
|
|
0
|
211
|
June 28, 2023
|
|
In illumination technology total lumens emitted by ___
|
|
0
|
190
|
June 28, 2023
|
|
The solid angle subtended by an area of ___
|
|
0
|
151
|
June 28, 2023
|
|
From a uniform light source having luminous intensity of ___
|
|
0
|
153
|
June 28, 2023
|
|
What will be the total flux emitted by a source of 60 candle power?
|
|
0
|
245
|
June 28, 2023
|
|
A 1000 W bulb fitted with a reflector illuminates an area of 3 m x 3 m with ___
|
|
0
|
171
|
June 28, 2023
|
|
Which lamp has a negative Colour Rendering Index (CRI)?
|
|
0
|
177
|
June 28, 2023
|
|
The range of visual spectrum is ___
|
|
0
|
151
|
June 28, 2023
|
|
What will be the number of lamps, each having 300 lumens, required to ___
|
|
0
|
205
|
June 28, 2023
|
|
What is the work of a driver in case of an LED?
|
|
0
|
153
|
June 28, 2023
|
|
Which lamp is best suited for lighting an International sports arena?
|
|
0
|
185
|
June 28, 2023
|
|
Candela/metre square is the unit of which photometric quantity?
|
|
0
|
120
|
June 28, 2023
|
|
Which lamps can be directly connected to a solar cell?
|
|
0
|
228
|
June 28, 2023
|
|
What is the ratio of illuminance at a point 5m just below ___
|
|
0
|
171
|
June 28, 2023
|
|
Which cells in the eye are responsible for scotopic vision?
|
|
0
|
136
|
June 28, 2023
|
|
Which lamp has the best Colour Rendering Index (CRI)?
|
|
0
|
264
|
June 28, 2023
|
|
Solid angle is expressed in terms of ___
|
|
0
|
136
|
June 28, 2023
|
|
Candela is the unit of which?
|
|
0
|
149
|
June 28, 2023
|
|
In electrical resistance welding material of electrode should have ___
|
|
0
|
130
|
June 28, 2023
|