Artificial Lighting (Leaving Cert Construction Studies): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which type of fitting includes coving, pendant, and recessed lights planned during construction?
Which type of fitting includes coving, pendant, and recessed lights planned during construction?
Architectural fittings
Which lighting principle produces light through chemical reactions rather than heat?
Which lighting principle produces light through chemical reactions rather than heat?
Luminescence
What percentage of energy from GLS lamps becomes heat rather than light?
What percentage of energy from GLS lamps becomes heat rather than light?
90%
Which special gases do halogen lamps contain to extend filament life?
Which special gases do halogen lamps contain to extend filament life?
Iodine or bromine
What coating inside fluorescent tubes absorbs light and then glows?
What coating inside fluorescent tubes absorbs light and then glows?
Phosphor
What is the main shape difference between CFLs and standard fluorescent tubes?
What is the main shape difference between CFLs and standard fluorescent tubes?
CFLs are curved
What is the maximum lifespan of LED lighting?
What is the maximum lifespan of LED lighting?
100,000 hours
How much more energy-efficient is a 25W fluorescent lamp compared to a 100W tungsten lamp?
How much more energy-efficient is a 25W fluorescent lamp compared to a 100W tungsten lamp?
4 times
What unit measures lamp energy efficiency?
What unit measures lamp energy efficiency?
Lumens per watt
What is a luminaire?
What is a luminaire?
Complete lighting unit housing the lamp