• #### 1.  The polar curves are used to find out the

• MHCP
• MSCP
• Both (a) and (b)
• None of these
• #### 2.  Type of lighting fixture given in pic is

• Wall Sconge
• Cove lighting
• Recessed
• Pendant

• 0.0177
• 35156.25
• 0.666
• 937.5

• EE369
• EE361
• EE366
• EE365
• #### 5.  Diversity in interior lighting is the ratio of

• Maximum to minimum illuminance
• Minimum to maximum illuminance
• Average to maximum illuminance
• Average to minimum illuminance
• #### 6.  Inverse square law is ____ (Assume normal notations)

• E2 α 1d2E^2\ \alpha\ \frac{1}{d^2}E2 α d21​
• I α 1d2I\ \alpha\ \frac{1}{d^2}I α d21​
• I2 α 1d2I^2\ \alpha\ \frac{1}{d^2}I2 α d21​
• I2 α d2I^2\ \alpha\ d^2I2 α d2
• #### 7.  MHCP is

• Mean Hemispherical candle power
• Mean Horizontal candle power
• Mean horizontal candle point
• None of the above
• #### 8.  Lamp lumen maintenance factor depends on

• Cleanness of lamp
• Hours of usage
• Aging of lamp
• All the above

• 961.4 lux
• 323.1 lux
• 242.0 lux
• 572.2
• #### 10.  Human eye is most sensitive to ___ with same intensiy

• Violet region
• Green region
• Reg region
• Equal sensitivity in all light region
• #### 11.  Pic shows a problem in lighting - Identify it

• Glare
• Color rendering
• Stroboscopic effect
• #### 12.  Type of lighting scheme shown is

• Direct
• Indirect
• Semi indirect
• Semi direct
• #### 13.  UGR is stands for

• Unified Glare Rating
• #### 14.  According to the first law of illumination, the illumination of a surface due to a source of light is

• Inversely proportional to the distance between the surface and the source of light
• Inversely proportional to the square of the distance between the surface and the source of light
• Directly proportional to the distance between the surface and the source of light
• Directly proportional to the square of the distance between the surface and the source of light

• candela
• lumen
• lux.
• #### 16.  VCP in connection with glare stands for

• Visual comfort probability
• Visual capture probability
• Very comfortable position
• Visually correlated probability
• #### 17.  A fan hanged below the LED light at a Juice store causes irritation to occupants there, technically it is known as

• Glare
• Stroboscopic effect
• Disability glare
• #### 18.  Candela is the unit of

• Luminous _flux
• Luminous intensity
• Wavelength
• None of the above
• #### 19.  Frequency mentioned in definition of 1 Candela is

• 240 x 10^12 Hz
• 600 x 10^2 Hz
• 540 x 10^12 Hz
• 540 x 10^2 Hz
• #### 20.  Which is correct in this diagram

• 1-Illuminance, 2- Lumnous Flux, 3- Luminosity, 4 - Luminous intensity
• 1- Luminous flux, 2 - Luminous intensity, 3 - Illuminance, 4 - Luminosity
• 1- Luminous flux, 2- Illuminance, 3 - Luminosity, 4 - Luminous intensity
• 1- Luminous flux, 2 - Luminosity, 3- Illuminance, 4- Luminous intensity
• #### 21.  Lambert's cosine law is

• Eθ2 α EmCosθE_{\theta}^2\ \alpha\ \ E_mCos\thetaEθ2​ α Em​Cosθ
• Eθ α EmCosθE_{\theta}\ \ \alpha\ \ E_mCos\thetaEθ​ α Em​Cosθ
• Em α EθCosθE_m\ \ \alpha\ \ \ E_{\theta}Cos\thetaEm​ α Eθ​Cosθ
• Eθ α Cosθ EmE_{\theta}\ \ \alpha\ \frac{\ \ Cos\theta}{\ E_m}Eθ​ α Em​ Cosθ​
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