Download Lighting Fundamentals and Lamp Types and more Exams Nursing in PDF only on Docsity!
NALMCO Certified Apprentice Lighting Technician (CALT)
Study Guide
Light output is measured in ...? a) Footcandles b) Lumens c) Watts d) Electrons - Correct Answersb) Lumens 1- 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 Answersb) 1/2 of a large group of lamps are expected to have failed 1- 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 Answersa) 0-100, with 0 being worst and 100 being best 1- 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 Answersc) Ballast records energy consumption on an LCD display 1- 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 - Correct Answersd) The current 1- 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 Answersb) Electroluminescent 1- The amount of electric power a lighting system draws is measured in ...? a) Watts b) Ohms c) Amps d) Volts - Correct Answersa) Watts 1- A lighting system's efficacy is measured in ...? a) Lumens/Watt b) Amps/Volt c) Lumens/kWh d) $/kWh - Correct Answersa) Lumens/Watt 1- 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 Answersd) What is its noise rating? 1- ____ 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 - Correct Answersc) Lumen depreciation 1- A lamp with a very low color temperature is considered ...? a) Warm light source (reddish) b) Neutral light source (white) c) Cool light source (bluish) d) Energy-efficient - Correct Answersa) Warm light source (reddish)
Clear incandescent lamps are a ...? a) Point source b) Linear source - Correct Answersa) Point source 2- Which of the following is NOT an advantage of incandescent lamps? a) No ballast required b) Lowest initial cost c) High energy efficiency compared to fluorescent d) Easy to dim - Correct Answersc) High energy efficiency compared to fluorescent 2- If we have an incandescent lamp with the designation 65BR30, what is its wattage? a) 30W b) 65W c) R class d) 3-2/3 - Correct Answersb) 65W 2- MOL stands for ...? a) Maximum overall light b) Maximum overall length c) Minimum overall light d) Minimum overall length - Correct Answersb) Maximum overall length 2- Which of the following is NOT an advantage of halogen lamps? a) Uses a line-voltage ballast b) High efficiency c) Crisp, white light d) Compact size - Correct Answersa) Uses a line-voltage ballast 2- A PAR lamp is an example of which, most specifically, of the following? a) Rough service lamp b) Capsule lamp c) Double-ended linear lamp d) Reflectorized lamp - Correct Answersd) Reflectorized lamp 2- Which of the following is NOT a halogen lamp base? a) Single-pin b) Bi-pin c) Double-contact
d) Screw-in - Correct Answersa) Single-pin 2- If we see 75PAR30/HAL/SP10 as a lamp designation, which of the following statements do we know to be true about the lamp? a) 30W b) 10W c) 3 3/4 inches in diameter d) 9-3/8 inches in diameter - Correct Answersc) 3 3/4 inches in diameter 3- The best way to describe an energy-efficient lamp is one that ...? a) Produces less light and saves energy b) Last longer c) Provides better color rendition d) Produces more light per unit of consumed energy - Correct Answersd) Produces more light per unit of consumed energy 3- In a fluorescent lamp, UV energy produced inside the lamp impacts the inside of the glass bulb and is converted into visible light. What substance on the bulb converts UV energy into visible light? a) Fluorescence b) Halogen gas c) Phosphor d) Mercury - Correct Answersc) Phosphor 3- Which of the following is not a fluorescent lamp type? a) Preheat b) Metal halide c) Rapid start d) Instant start - Correct Answersb) Metal halide 3- What do rapid start lamps need to operate? a) A ballast b) A starter c) An ignitor d) A key - Correct Answersa) A ballast 3- Which of the following is not an advantage of a fluorescent lamp? a) Flexibility b) High efficiency compared to incandescent c) Fast starting
If somebody says, "That's a T5HO lamp," what would we know about its light output? a) Produces more light than a T b) Produces less light than a T c) Light output degrades rapidly compared to T d) It produces the same amount of light as a T8 lamp - Correct Answersa) Produces more light than a T 3- Some compact fluorescent lamps have bi-pin or 4-pin bases, and others have screw-in bases. Which of the following do we know to be true about CFLs with screw-in bases? a) They have a warm color temperature b) They are shatter-proof c) They are preheat lamps d) They are self-ballasted - Correct Answersd) They are self-ballasted 3- A ballast is required for all lighting systems except ...? a) Fluorescent b) Metal halide c) Incandescent and halogen d) CFLs - Correct Answersc) Incandescent and halogen 3- Which of the following does a ballast do? a) Start the lamp b) Control the current c) (a) and (b) d) None of the above - Correct Answersc) Both (a) Start the lamp and (b) Control the current 3- Which of the following is not a fluorescent ballast type? a) Preheat b) Rapid start c) Instant start d) High pressure sodium - Correct Answersd) High pressure sodium 3- Trigger start ballasts, which operate like rapid start ballasts, were designed to operate ...? a) Rapid start lamps b) Instant start lamps c) Preheat lamps d) Slimline lamps - Correct Answersc) Preheat lamps 3-
A Class P ballasts is one which contains ...? a) A beeper to call you when there's a problem b) A thermal protection device that shuts down the ballast if it overheats c) A device that allows the ballast to start lamps at cold temperatures d) None of the above - Correct Answersb) A thermal protection device that shuts down the ballast if it overheats. 3- Electronic ballasts offer which benefit? a) Less flicker b) Greater efficiency c) Quieter operation d) All of the Above - Correct Answersd) All of the above 3- If a lamp produces 3000 lumens and the ballast has a ballast factor of 0.90, what is the lamp's light output when operated by the ballast? a) 3000 b) 2700 c) 2500 d) 3236 - Correct Answersb) 2700 3- The most common failure in an induction luminaire is ...? a) Generator / driver b) Vessel/Lamp c) Socket d) Igniter - Correct Answersa) Generator / driver 3- What is the primary cause of shortened generator life in an induction luminaire? a) Occupancy sensors b) Frequency of starts c) Heat d) High kWh rates - Correct Answersc) Heat 3- Typically, induction luminaires use what type of socket? a) Medium bi-pin b) Mogul c) Edison d) None - Correct Answersd) None 3-
d) Bright white - Correct Answersa) Gray, black or yellow 4- If you replace an HID lamp with another HID lamp type, which of the following are you most likely to have to replace as well ...? a) The luminaire b) The pole if it's mounted on one c) The ballast d) The nearest circuit breaker - Correct Answersc) The ballast 4- Which of the following is NOT a ballast used to operate HID lamps? a) F-can b) Core-and-coil c) Preheat CFL d) Post line - Correct Answersc) Preheat CFL 4- Which of the following is every ballast's biggest enemy? a) Noise b) Heat c) Dirt d) Line voltage - Correct Answersb) Heat 4- If an HID lamp bulb is phosphor-coated, the lamp generally has better ____ than clear lamp bulbs. a) Color qualities b) Efficiencies c) Service life d) Voltage ratings - Correct Answersa) Color qualities 4- Due to their high light output and compact sizes, HID lamps are ideal for lighting ____ spaces. a) Small b) Restricted c) Large d) Office - Correct Answersc) Large 4- If a pulse-start MH lamp experiences a momentary power interruption, when the power returns, it takes 3-4 ____ to re-strike and begin the warm-up process because the arc tube must ____ before the lamp can restart. a) Seconds ; heat sufficiently b) Minutes ; heat sufficiently
c) Seconds; cool down d) Minutes ; cool down - Correct Answersd) Minutes ; cool down 4- A BT56 lamp is ______________ in shape. a) Tubular b) Bulbous tubular c) Reflector d) Ellipsoidal - Correct Answersb) Bulbous tubular 4- A BT56 lamp is _____________ in diameter. a) 56 inches b) 5.6 inches c) 8 inches d) 7 inches - Correct Answersd) 7 inches 5- The acronym LED stands for: a) Linear, Energy, Directional b) Lighting Efficiency Demands c) Light Emitting Diode d) Luminaire Efficacy Diagnostics - Correct Answersc) Light Emitting Diode 5- What factors contribute to a LED lighting system's efficiency? Select all that apply: a) LED lighting systems contain no lead b) LED lighting is inherently directional resulting in less wasted light c) Conventional lighting systems cost less to install d) LED lighting systems are solid state electronic systems with highly efficient components - Correct Answersb) LED lighting is inherently directional resulting in less wasted light. 5- As LED is dimmed, it is the only light source that: a) Increases in efficacy b) Changes color c) Becomes brighter d) Generates more heat - Correct Answersa) Increases in efficacy 5- Select the two basic types of LEDs: a) Indicator-type b) Electronic-type
b) Heat management is not an issue because LED luminaires do not generate heat c) Solid state and electronic components are susceptible to reduced life as a result of uncontrolled heat d) The consumer is becoming more aware of global warming - Correct Answersc) Solid state and electronic components are susceptible to reduced life as a result of uncontrolled heat 5- White-light LED is produced by: a) Combining blue LED and a phosphor b) White LEDs c) White lensed luminaires d) White-light LED is not possible - Correct Answersa) Combining blue LED and a phosphor 6- Which of the following is a benefit of automatic lighting controls? a) Energy savings b) Flexibility c) Security d) All of the above - Correct Answersd) All of the above 6- A standard toggle wall switch is an automatic lighting control. a) True b) False - Correct Answersb) False 6- What is the function of a scheduling system? a) Turns the lights on and off based on occupancy b) Controls the lights based on a preset schedule c) Dims or switches the lights based on available daylight d) None of the above - Correct Answersb) Controls the lights based on a preset schedule 6- What is the function of a daylight harvesting system? a) Turns the lights on and off based on occupancy b) Controls the lights based on a preset schedule c) Dims or switches the lights based on available daylight d) None of the above - Correct Answersc) Dims or switches the lights based on available daylight 6- A timeclock is an example of what type of control?
a) Photocell control b) Step-level HID control c) Scheduling control d) Lumen depreciation control - Correct Answersc) Scheduling control 6- What is the primary advantage of a low-voltage control system? a) Allows network of relays to be set up, each controlling a lighting zone, for flexible, large-scale on-off control of a large building area b) The amount of light in the space is measured continually and light output from the lamps is continually adjusted to maintain the target light level c) Lighting is activated by a key, meaning only authorized personnel can control the lighting system d) Encourages - Correct Answersa) Allows network of relays to be set up, each controlling a lighting zone, for flexible, large-scale on-off control of a large building area 6- Dimming ballasts are available for both fluorescent and HID lamps. a) True b) False - Correct Answersa) True 6- PIR occupancy sensors automatically switch lamps based on detected occupancy using a technology that reads ____________ in an area. a) Changes in reflected sound waves b) Changes in heat radiation c) Changes in availability of daylight d) All of the above - Correct Answersb) Changes in heat radiation 6- Ultrasonic occupancy sensors automatically switch lamps based on detected occupancy using a technology that reads ____________ in an area. a) Changes in reflected sound waves b) Changes in background heat radiation c) Changes in availability of daylight d) None of the above - Correct Answersa) Changes in reflected sound waves 6- Occupancy sensors can be used both indoors and outdoors. a) True b) False - Correct Answersa) True 6- Why should occupancy sensors be time-set after installation?
c) Light wand d) Light meter - Correct Answersd) Light meter 7- Which of the following is NOT a benefit of raising light level to a consistently maintained proper light level? a) Fewer work interruptions b) Fewer errors c) Increased productivity d) Fewer accidents - Correct Answersa) Fewer work interruptions 7- Which of the following organizations sets safety regulations for the workplace? a) Illuminating Engineering Society of North America (IESNA) b) The Lighting Research Center(LRC) c) The U.S. Department of Energy (DOE) d) The Occupational Safety and Health Administration (OSHA) - Correct Answersd) The Occupational Safety and Health Administration (OSHA) 7- Horseplay on the job can result in ____________. a) Poor customer relations b) Injury or damage to customer property c) Quick suspension or termination d) All of the above - Correct Answersd) All of the above 7- Electrical equipment can be fatal if ___________. a) You stand too close to it b) It uses you as a conductor c) It's in operation d) None of the above - Correct Answersb) It uses you as a conductor 7- Which of the following safety rules does not apply? a) Do not stand on the top two rungs of the ladder b) Remove broken lamps carefully c) Turn off power to the luminaire before working on it d) Do not put your hand over the scaffold railing - Correct Answersd) Do not put your hand over the scaffold railing 7- Which of the following is NOT necessary to wear when on a scaffold? a) Appropriate shoes b) Safety belt c) Safety glasses
d) Whistle - Correct Answersd) Whistle 7- Before moving a scaffold, you should ____________. a) Make sure people on the scaffold know you're moving it b) Make sure there are no obstructions in the way c) (a) and (b) d) None of the above - Correct Answersc) Both (a) Make sure people on the scaffold know you're moving it and (b) Make sure there are no obstructions in the way 7- When, if ever, is it okay to lean against the wall when on a scaffold? a) When the scaffold is tied securely to the wall b) When the scaffold is tilted against the wall c) When your supervisor tells you it's okay d) Never - Correct Answersa) When the scaffold is tied securely to the wall 7- If a lamp draws 100W and runs for 5,000 hours per year, how many kWh of energy does it consume per year? a) 50 b) 100 c) 500 d) 1000 - Correct Answersc) 500 7- If we achieve energy savings of 200 kWh and the utility cost per kWh is $0.10, what is the dollar value of the energy savings? a) $ b) $ c) $ d) $40 - Correct Answersc) $ 7- If a new energy-saving lamp costs $10 and it saves $5 per year in energy costs, what is the payback period? a) 16 months b) 24 months c) 36 months d) 50 months - Correct Answersb) 24 months 7- Which of the following is NOT included in a typical planned maintenance program? a) Periodic group relamping b) Periodic luminaire cleaning c) Troubleshooting
a) After the lighting system is disconnected from the power supply using an energy-isolating device, a lockout device is added to make sure that it stays disconnected b) After the lighting system is disconnected from the power supply using an energy-isolating device, a tagout device is added to make sure that it stays disconnected c) A lockout device is installed on the circuit to disconnect and isolate an energy-using device from the power supply d) If the energy-isolating device cannot be locked out, then a tagout device must be placed in the energy-isolating device - Correct Answersa) After the lighting system is disconnected from the power supply using an energy-isolating device, a lockout device is added to make sure that it stays disconnected 8- The "tagout" part of the lockout/tagout rule essentially means ____. a) After the lighting system is disconnected from the power supply using an energy-isolating device, a lockout device is added to make sure that it stays disconnected b) After the lighting system is disconnected from the power supply using an energy-isolating device, a tagout device is added to alert people not to re-energize the lighting system c) A lockout device is installed on the circuit to disconnect and isolate an energy-using device from the power supply d) None of the above - Correct Answersb) After the lighting system is disconnected from the power supply using an energy-isolating device, a tagout device is added to alert people not to re-energize the lighting system 8- Branch circuit conductors within ________ of a ballast shall have an insulation temperature rating not lower than 90 degrees Celsius. a) 3 inches b) 6 inches c) 2 inches d) 1 inch - Correct Answersa) 3 inches 8- If a circuit breaker is used as a switch in a fluorescent lighting circuit, it shall be listed and rated as: a) GFCI b) AFCI c) SWD or HID d) WMD or PDM - Correct Answersc) SWD or HID 8- The supply voltage to the luminaire must be turned off before servicing or maintenance activities.
a) True b) False - Correct Answersa) True 8- Proper grounding is required, in accordance with the ____. a) NIOSH Code b) Regional Electrical Code c) National Electrical Code d) Underwriters Laboratory Code - Correct Answersc) National Electrical Code 8- Luminaire wires should not be smaller than what size AWG. a) 2 AWG b) 14 AWG c) 16 AWG d) 18 AWG - Correct Answersd) 18 AWG 8- Who is responsible for my personal safety on a job site? a) I am b) The owner c) OSHA d) Safety manager - Correct Answersa) I am 8- When managing a crew, the most important responsibility is to: a) Follow all safety rules and regulations b) Provide a smoking area c) Provide great customer relations d) Ensure productivity - Correct Answersa) Follow all safety rules and regulations 8- A single section (of track for lighting) 4 feet or shorter in length shall have a minimum of how many supports? a) One per foot b) Two c) Three d) One total - Correct Answersb) Two 8- What does PPE stand for? a) Personal Protective Equipment b) Practice Perfects Efficiency c) Proper Planning & Education d) Profit Projection Estimate - Correct Answersa) Personal Protective Equipment
