Which of these correctly describe BZ classification?
A) BZ 5 projects only sideways and is used for wall mounted luminaires
B) BZ 0 means equal spherical illuminance
C) BZ 10 means light projection all downwards
D) BZ 10 has a luminaire directing all light output upwards providing only reflection off the ceiling
E) BZ defines the solid angle projection from a lamp in streradians
Correct Answer:
Verified
Q1: When 900 lumen falls onto a 2.0
Q2: Light falling onto the surface in a
Q3: Illumination Intensity is which?
A)Lumens
B)Light level
C)Illuminance
D)Lumen/m2
E)Lumen per watt
Q4: Efficacy of a lamp means?
A)Lumens light output
Q5: Light system glare means?
A)Florescent indoor lighting systems
Q6: What is an air-handling luminaire?
A)Sealed luminaire to
Q7: What is meant by lamp colour temperature?
A)Colour
Q8: Which are correct descriptions of lighting system
Q9: Which is correct about lighting?
A)1000 lumen/m2 is
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