NALMCO CERTIFIED APPRENTICE
LIGHTING TECHNICIAN (CALT) STUDY
Q’S
NALMCO CERTIFIED APPRENTICE LIGHTING TECHNICIAN (CALT) STUDY Q’S |2025
1-1
Light output is measured in ...?
a) Footcandles
b) Lumens
c) Watts
d) Electrons - ACCURATE ANSWERS✔✔ b) Lumens
1-2
Rated lamp life is the time when ...?
a) Lamps reach 20,000 hours of operation
,b) 1/2 of a large group of lamps are expected to have failed
c) All lamps are expected to fail
d) It's the best time to group relamp - ACCURATE ANSWERS✔✔ b)
1/2 of a large group of lamps are expected to have failed
1-3
The Color Rendering Index is a scale that describes how accurately
colors look when struck by the light from a given lamp. How is the scale
defined?
a) 0-100, with 0 being worst and 100 being best
b) 0-75, with 0 being worst and 75 being best
c) 0-100, with 100 being worst and 0 being best
d) 0-75, with 75 being worst and 0 being best - ACCURATE
ANSWERS✔✔ a) 0-100, with 0 being worst and 100 being best
1-4
Which of the following is NOT a typical function of a lighting system?
a) Ballast starts and operates the lamp
b) Lamp produces light
c) Ballast records energy consumption on an LCD display
d) Luminaire controls the direction and intensity of the light
coming out of the lamp - ACCURATE ANSWERS✔✔ c) Ballast
records energy consumption on an LCD display
1-5
,Voltage is the "push" of electricity, which reaches resistance, and the
resulting rate of flow of electric power down the line is called ...?
a) Ballast starts and operates the lamp
b) Lamp produces light
c) Ballast records energy consumption on an LCD display
d) Luminaire controls the direction and intensity of the light
coming out of the lamp - ACCURATE ANSWERS✔✔ d) The current
1-6
Which of the following is NOT one of the major families of lighting?
a) Incandescent/Halogen
b) Electroluminescent
c) High-intensity discharge
d) Fluorescent - ACCURATE ANSWERS✔✔ b) Electroluminescent
1-7
The amount of electric power a lighting system draws is measured in ...?
a) Watts
b) Ohms
c) Amps
d) Volts - ACCURATE ANSWERS✔✔ a) Watts
1-8
, A lighting system's efficacy is measured in ...?
a) Lumens/Watt
b) Amps/Volt
c) Lumens/kWh
d) $/kWh - ACCURATE ANSWERS✔✔ a) Lumens/Watt
1-9
Which is NOT one of the most important questions we typically need to
ask to be able to understand and compare one lamp to another?
a) How long does the lamp last?
b) How much light does it produce?
c) How much electricity does it require?
d) What is its noise rating? - ACCURATE ANSWERS✔✔ d) What is its
noise rating?
1-10
____ describes the gradual decline in a lamp's light output as it ages.
a) Light efficacy
b) Lamp consolidation
c) Lumen depreciation
d) Hours per start degradation - ACCURATE ANSWERS✔✔ c) Lumen
depreciation
1-11
LIGHTING TECHNICIAN (CALT) STUDY
Q’S
NALMCO CERTIFIED APPRENTICE LIGHTING TECHNICIAN (CALT) STUDY Q’S |2025
1-1
Light output is measured in ...?
a) Footcandles
b) Lumens
c) Watts
d) Electrons - ACCURATE ANSWERS✔✔ b) Lumens
1-2
Rated lamp life is the time when ...?
a) Lamps reach 20,000 hours of operation
,b) 1/2 of a large group of lamps are expected to have failed
c) All lamps are expected to fail
d) It's the best time to group relamp - ACCURATE ANSWERS✔✔ b)
1/2 of a large group of lamps are expected to have failed
1-3
The Color Rendering Index is a scale that describes how accurately
colors look when struck by the light from a given lamp. How is the scale
defined?
a) 0-100, with 0 being worst and 100 being best
b) 0-75, with 0 being worst and 75 being best
c) 0-100, with 100 being worst and 0 being best
d) 0-75, with 75 being worst and 0 being best - ACCURATE
ANSWERS✔✔ a) 0-100, with 0 being worst and 100 being best
1-4
Which of the following is NOT a typical function of a lighting system?
a) Ballast starts and operates the lamp
b) Lamp produces light
c) Ballast records energy consumption on an LCD display
d) Luminaire controls the direction and intensity of the light
coming out of the lamp - ACCURATE ANSWERS✔✔ c) Ballast
records energy consumption on an LCD display
1-5
,Voltage is the "push" of electricity, which reaches resistance, and the
resulting rate of flow of electric power down the line is called ...?
a) Ballast starts and operates the lamp
b) Lamp produces light
c) Ballast records energy consumption on an LCD display
d) Luminaire controls the direction and intensity of the light
coming out of the lamp - ACCURATE ANSWERS✔✔ d) The current
1-6
Which of the following is NOT one of the major families of lighting?
a) Incandescent/Halogen
b) Electroluminescent
c) High-intensity discharge
d) Fluorescent - ACCURATE ANSWERS✔✔ b) Electroluminescent
1-7
The amount of electric power a lighting system draws is measured in ...?
a) Watts
b) Ohms
c) Amps
d) Volts - ACCURATE ANSWERS✔✔ a) Watts
1-8
, A lighting system's efficacy is measured in ...?
a) Lumens/Watt
b) Amps/Volt
c) Lumens/kWh
d) $/kWh - ACCURATE ANSWERS✔✔ a) Lumens/Watt
1-9
Which is NOT one of the most important questions we typically need to
ask to be able to understand and compare one lamp to another?
a) How long does the lamp last?
b) How much light does it produce?
c) How much electricity does it require?
d) What is its noise rating? - ACCURATE ANSWERS✔✔ d) What is its
noise rating?
1-10
____ describes the gradual decline in a lamp's light output as it ages.
a) Light efficacy
b) Lamp consolidation
c) Lumen depreciation
d) Hours per start degradation - ACCURATE ANSWERS✔✔ c) Lumen
depreciation
1-11
