Page | 1
NALMCO CERTIFIED APPRENTICE
LIGHTING TECHNICIAN (CALT) STUDY
GUIDE BRAND NEW OFFICIAL QUESTIONS
WITH ANSWERS.
1-1
Light output is measured in ...?
a) Footcandles
b) Lumens
c) Watts
d) Electrons - correct answer -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 - correct answer -b) 1/2 of a
large group of lamps are expected to have failed
1-3
, Page | 2
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 - correct answer -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 - correct answer -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
...?
, Page | 3
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 - correct answer -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 - correct answer -b) Electroluminescent
1-7
The amount of electric power a lighting system draws is
measured in ...?
a) Watts
b) Ohms
c) Amps
d) Volts - correct answer -a) Watts
, Page | 4
1-8
A lighting system's efficacy is measured in ...?
a) Lumens/Watt
b) Amps/Volt
c) Lumens/kWh
d) $/kWh - correct answer -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? - correct answer -d) What is its noise
rating?
1-10
____ describes the gradual decline in a lamp's light output as it
ages.
a) Light efficacy
NALMCO CERTIFIED APPRENTICE
LIGHTING TECHNICIAN (CALT) STUDY
GUIDE BRAND NEW OFFICIAL QUESTIONS
WITH ANSWERS.
1-1
Light output is measured in ...?
a) Footcandles
b) Lumens
c) Watts
d) Electrons - correct answer -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 - correct answer -b) 1/2 of a
large group of lamps are expected to have failed
1-3
, Page | 2
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 - correct answer -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 - correct answer -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
...?
, Page | 3
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 - correct answer -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 - correct answer -b) Electroluminescent
1-7
The amount of electric power a lighting system draws is
measured in ...?
a) Watts
b) Ohms
c) Amps
d) Volts - correct answer -a) Watts
, Page | 4
1-8
A lighting system's efficacy is measured in ...?
a) Lumens/Watt
b) Amps/Volt
c) Lumens/kWh
d) $/kWh - correct answer -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? - correct answer -d) What is its noise
rating?
1-10
____ describes the gradual decline in a lamp's light output as it
ages.
a) Light efficacy
