NALMCO Certified Apprentice Lighting Technician (CALT) Study Guide Questions with Correct Answers

1-1 Light output is measured in ...? a) Footcandles b) Lumens c) Watts d) Electrons - 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 - 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 - 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 - 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 - 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 - b) Electroluminescent 1-7 The amount of electric power a lighting system draws is measured in ...? a) Watts b) Ohms c) Amps d) Volts - a) Watts 1-8 A lighting system's efficacy is measured in ...? a) Lumens/Watt b) Amps/Volt c) Lumens/kWh d) $/kWh - 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? - 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 - c) Lumen depreciation 1-11 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 - a) Warm light source (reddish) 1-12 A lamp's color rendering ability describes how well it can relatively ...? a) Prevent color shifting over time b) Raise color temperature over time c) Show colors accurately d) Produce light per unit of consumed energy - c) Show colors accurately 1-13 If a lamp is rated at 20,000 hours at three hours per start, this is the lamp life if the lamp is ...? a) Turned off and on quickly every three hours b) Left on for three hours and off for 15-20 minutes c) On for three hours and off for three hours d) None of the above - b) Left on for three hours and off for 15-20 minutes 2-1 A reflector fitted onto an incandescent lamp is used to ...? a) Increase color rendering ability b) Push light in a direction c) Make the lamp last longer d) Decrease heat produced by the lamp - b) Push light in a direction 2-2 In incandescent lamp typically converts _____% of its electrical input into light output. a) 10-15% b) 20-25% c) 30-35% d) 50% - a) 10-15% 2-3 Incandescent lamps are rated to provide only ___ hours of service life, so when we want an incandescent lamp but we want it to last longer, we can choose a long-life incandescent lamp, which provides ___ hours of service life. a) 2000 ; 4000 b) 1000 ; 4000 c) 750-1000 ; d) 800-2000 ; - c) 750-1000 ; 2-4 Rough service lamps are resistant to ...? a) Color shift b) Line voltage variations c) Shock and vibration d) Wide range of ambient temperatures - c) Shock and vibration 2-5 Clear incandescent lamps are a ...? a) Point source b) Linear source - a) Point source 2-6 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 - c) High energy efficiency compared to fluorescent 2-7 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 - b) 65W 2-8 MOL stands for ...? a) Maximum overall light b) Maximum overall length c) Minimum overall light d) Minimum overall length - b) Maximum overall length 2-9 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 - a) Uses a line-voltage ballast 2-10 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 - d) Reflectorized lamp 2-11 Which of the following is NOT a halogen lamp base? a) Single-pin b) Bi-pin c) Double-contact d) Screw-in - a) Single-pin 2-12 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 - c) 3 3/4 inches in diameter 3-1 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 - d) Produces more light per unit of consumed energy 3-2 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 - c) Phosphor 3-3 Which of the following is not a fluorescent lamp type? a) Preheat b) Metal halide c) Rapid start d) Instant start - b) Metal halide 3-4 What do rapid start lamps need to operate? a) A ballast b) A starter c) An ignitor d) A key - a) A ballast 3-5 Which of the following is not an advantage of a fluorescent lamp? a) Flexibility b) High efficiency compared to incandescent c) Fast starting d) Lamps can last beyond 90,000 hours. - d) Lamps can last beyond 90,000 hours. 3-6 On a parallel circuit, if one lamp goes out, the other lamp will ...? a) Fail to light b) Continue to operate normally c) Light only dimly d) Experience severe end blackening - b) Continue to operate normally 3-7 What is the diameter of a T8 lamp? a) 0.5 inches b) 5/8 inches c) 1 inch d) 1.5 inches - c) 1 inch 3-8 An instant start F96T12 lamp is how many inches long? a) 9 b) 12 c) 96 d) 48 - c) 96 3-9 In a lamp code, "T" means the lamp is ...? a) Circular b) Tall c) Tubular d) Tested by Underwriters Laboratories, Inc. (UL) - c) Tubular 3-10 Which of the following is NOT a fluorescent lamp base? a) Bi-pin b) Recessed double-contact c) Single-pin d) 8-pin - d) 8-pin