22530 Illumination and Electrification of Buildings Mcq
Enhance lighting is used for decoration and effective visualization of?
(a) gold
(b) silver
(c) diamond
(d) All of the above
Lamp Efficiency of LED?
(a) High (more than 60 lumen per watt)
(b) High (more than 70 lumen per watt)
(c) High (more than 80 lumen per watt)
(d) High (more than 90 lumen per watt)
Lamp Efficiency of CFL?
(a) less (20-30 lumen per watt)
(b) less (30-40 lumen per watt)
(c) less (40-50 lumen per watt)
(d) less (50-60 lumen per watt)
Types of Electronic dimmer
(a) S.C.R. operated dimmer
(b) Triac operated dimmer
(c) Both (a) & (b)
(d) None of the above
State the Lux level recommended for Classroom
(a) 100 lux
(b) 150 lux
(c) 250 lux
(d) 300 lux
State the Lux level recommended for College Auditorium
(a) 500 lux
(b) 600 lux
(c) 700 lux
(d) 800 lux
State the Lux level recommended for Outdoor area/parking area
(a) 500 to 1000 lux
(b) 1000 to 1500 lux
(c) 1000 to 2000 lux
(d) 1500 to 2500 lux
Correct answer
(c) 1000 to 2000 lux
State the Lux level recommended for Research and development center
(a) 200 to 300 lux
(b) 300 to 400 lux
(c) 400 to 500 lux
(d) 500 to 600 lux
Correct answer
(d) 500 to 600 lux
Select the illumination level required as per ISI for Kitchen sink
(a) 50 Lux
(b) 100 Lux
(c) 150 Lux
(d) 200 Lux
Select the illumination level required as per ISI for Staircase
(a) 60 to 100 Lux
(b) 100 to 160 Lux
(c) 160 to 220 Lux
(d) 220 to 280 Lux
Select the illumination level required as per ISI for Dining room
(a) 100 to 200 Lux
(b) 200 to 300 Lux
(c) 300 to 400 Lux
(d) 400 to 500 Lux
Correct answer
(b) 200 to 300 Lux
Select the illumination level required as per ISI for Study room
(a) 25 Lux
(b) 50 Lux
(c) 100 Lux
(d) 150 Lux
Correct answer
(d) 150 Lux
State the Purpose of Lighting Control
(a) To turn ON or OFF the lamps
(b) For energy saving.
(c) By salt water method
(d) Both (a) & (b)
State type of lamps used in Horticulture?
(a) High pressure sodium lamps
(b) Metal halide lamps
(c) Any of the standard high pressure lamp of 250W, 500W, 1000W
(d) All of the above
Correct answer
(d) All of the above
Different Types of Dimmer
(a) To increase the safety of lighting system
(b) By using auto transformer
(c) By using auto transformer
(d) Both (b) & (c)
State the different types of outdoor flood lighting?
(a) Narrow beam Projector
(b) Wide angle Projector
(c) Medium angle Projector
(d) All of the above
State the various lighting calculations methods?
(a) Lumens or Light flux method
(b) Point to point or Inverse Square law method
(c) Watts per Square meter method
(d) All of the above
Explain the features of Aquarium lighting.
(a) The aquarium lighting should be economical.
(b) In some type of aquarium the ultraviolet lamps are provided for the bacteria killing purpose
(c) The life of the aquarium lighting should be long.
(d) The aquarium lighting also depends upon the various aquarium accessories used in the tank
(e) All of the above
State the selection criterion of the lamp for various purposes?
(a) Rated service life
(b) Surface brightness
(c) Compatibility with the electrical system
(d) Light output
(e) All of the above
State any four design considerations for illumination scheme of commercial complex
(a) Room and object surface colors and reflectances
(b) Cleanliness of the area during operation
(c) Hours of operation
(d) Structural obstructions such as beams
(e) All of the above
In AC Arc Lamp Cross section area of electrode is positive rod is twice that of negative rod
(a) True
(b) False
Correct answer
(b) False
Reason: In AC Arc Lamp Cross section area of electrode is same
Incandescent is the phenomenon in which the object emits or creates light when it is heated.
(a) True
(b) False
Enhance lighting is lighting with various colour effects and controlled light intensity?
(a) True
(b) False
In DC Arc Lamp Cross section area of electrode is same
(a) True
(b) False
An incandescent lamp is a lamp in which the filament is heated by electrical current & light is created.
(a) True
(b) False
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