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June's Answer
* Indicates the correct answer.
Choose the best answers.
Which
of the following myths are true
and
which are false.
A typical fluorescent lamp will last 15,000 - 20,000 hours.
*True
Many four foot fluorescent tubes are rated at an average of 20,000 hours. This is only an average and thus could exceed the ratted average bulb life.
A typical household lamp will last an average of 10,000 hours.
True
I've never seen a typical household lamp with this high of a rating. An average life for a typical lamp is 750-2000 hours. A 480 lamp life is the lowest I've seen. I have purchased 5000 hour lamps at 60 watts typically.
Light bulbs aren't what they used to be.
*True
This is a true statement. Most
of the time when you hear something is not what it used to be, it
means the product is not as good as it used to be. This is only half
right with a light bulb. Light bulb manufactures have had to cut cost
over the years to stay in competition with over seas markets. This
has lead to a "lesser grade" lamp.
On the other hand, manufactures
have had to stay up to date with federal regulations. The regulations
make the lamp manufactures get more light out of their lamps, using
less electricity. So - bulbs aren't what they used to be!
More people are killed on 120 volts than higher voltages.
*True
This is true because of the ratio of people that come in contact with 120 volts verses higher voltages.
It is safe to have a radio by a tub only if it is plugged into a ground fault outlet.
True
It is never 100% safe to have
electrical devices around any water source. The National Electric
Code does require ground fault protection for around tubs (210-8.
Ground-Fault Circuit-Interrupter Protection for Personnel
(a) Dwelling Units. All
125-volt, single-phase, 15- and 20-ampere receptacles installed in
the locations specified below shall have ground-fault
circuit-interrupter protection for personnel.
1. Bathrooms.) .
A ground
fault protected outlet would still give a jolt (non-fatal) to anyone
that would be in the tub. This is if the GFI was in proper working order.
There is only one correct way to install 2 three way switches.
True
There are many different ways to install the wiring to 2 three way switches. There are actually several more different ways to connect three way switches at the wall opening. If you would like to see an example of one three way diagram, click here.
A yellow light bulb will detract night flying bugs.
*True
I've never read a good explanation for why yellow light will not attract night flying insects. I have only heard one theory. It goes as follows, through evolution, the insects that were attracted to the yellow light of the fires were killed off. Thus, only those insects that were not attracted to yellow light were left. ????
