Sample UL Quiz

1. Thomas Edison is credited far and wide with "invention" of the incandescent light bulb. But what scientist reported success with just such an innovation a year before Edison did?
€ Humphry Davy
€ Michael Faraday
€ Albert Einstein
€ Joseph Swan
2. The first spiral compact fluorescent light bulbs (CFL) appeared on the market in 1995. But when was the design invented?
€ 1902
€ 1959
€ 1976
€ 1990
3. Energy Star-rated CFLs use approximately how much less energy than an equivalent incandescent (standard) light bulb?
€ 25 percent
€ 50 percent
€ 75 percent
€ 100 percent
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