Hid and fluorescent - Study guides, Class notes & Summaries

BUILDING UTILITIES COMPRE EXAM QUESTIONS WITH 100% CORRECT ANSWERS 2024 "Is a physical wave, a mechanical vibration, a series of pressure variations, in an elastic medium " - answerSound A healthy pair of human ear has a detection range of. - answer20 to 20000 HZ Sound travels in air, at sea level, in ____ m/sec. - answer344 m/ sec. "The number of times the cycle of compression and rarefaction of air makes in a given unit of time. " - answerFrequency "Is the persistence of sound a...

What type of lighting fixture would you specify if you wanted the longest lamp life? - CORRECT ANSWER-Mercury Vapor What type of lighting fixture would you specify if you wanted the best overall combination of cost, efficiency, color rendition, and life? - CORRECT ANSWER-Fluorescent What term is used as a measure of light energy? - CORRECT ANSWER-Lumen What feature is performed by a lighting ballast? - CORRECT ANSWER-All of these are true: Provide a high voltage to start the arc Provide...

Electrical journeyman Exam Questions And Answers 100% Verified What does FLC stand for - answerFull load current An electrical device that consists of a frame a plunger and uses an up and down motion to operate - answerSolenoid 240 volt to ground, 200 amp panel in condition 3 needs a minimum front clearance of how many feet - answer4 What is the minimum clearance in front of a service panel - answer3 feet The width of a 120/240 volt panel working area shall be a minimum of how many feet ...

Nccer electrical level 2 module 3NEC requirements must be adhered to when installing incandescent recessed lighting fixtures because they are a fire hazard if installed incorrectly which of the following will shorten the life of a filament in an incandescent lamp? operating at warmer temperature chandeliers are a type of suspended lighting fixture when white light is passed through a prism, how many total colors are visible 6 Compared to standard incandescent lamps, which...

NALMCO Certified Apprentice Lighting Technician (CALT) Study Guide 1-1 Light output is measured in ...? a) Footcandles b) Lumens c) Watts d) Electrons - Correct Answersb) 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 Answersb) 1/2 of a large group of lamps are expected to have failed 1-3 T...

The National Electrical Code not intended as ________. - Answers design specification or as an instrucion manual The provisions of the national electrical code are considered necessary for ________. - Answers safety What is not covered within the scope of the national electrical code? - Answers installation in underground mines Which chapter of the national electrical code covers communications systems? - Answers chapter 8 The informational annexes of the national electrical code are...

NALMCO Certified Apprentice Lighting Technician (CALT) Study Guide 1-1 Light output is measured in ...? a) Footcandles b) Lumens c) Watts d) Electrons - Correct Answersb) 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 Answersb) 1/2 of a large group of lamps are expected to have failed 1-3 T...

NCIDQ - IDPX Q Practice Test (Questions + Answers) LATEST UPDATE All of the following are true about gypsum wallboard EXCEPT? 1. Synthetic gypsum is chemically identical to natural mined gypsum 2. The main source of synthetic gypsum in North America is flue-gas desulfurization 3. Its manufacture, use, and disposal has an effect on the environment 4. 70% of the industry's total use of gypsum is synthetic gypsum Answer: 4. 70% of the industry's total use of gypsum is synthetic gypsu...

Fire Investigator - master for TCFP test ? Is NFPA 921 a guide or a standard? - CORRECT ANSWER-It is the Guide for Fire and Explosion Investigations What are the six steps of the scientific method? - CORRECT ANSWER-Recognize the need Define the problem Collect the data Analyze the data Develop a hypothesis Test the hypothesis What step of the scientific method is inductive reasoning? - CORRECT ANSWERAnalyze the data What step of the scientific method is deductive reasoning? - CORRE...

Nccer electrical level 2 module 3 NEC requirements must be adhered to when installing incandescent recessed lighting fixtures because they - Answer- are a fire hazard if installed incorrectly which of the following will shorten the life of a filament in an incandescent lamp? - Answer- operating at warmer temperature chandeliers are a type of - Answer- suspended lighting fixture when white light is passed through a prism, how many total colors are visible - Answer- 6 Compared to st...