The Ultimate Replacing an Incandescent Light Quiz

By: Staff

4 Min Quiz

Image: refer to hsw

About This Quiz

Finally bought that exquisitely elegant light fixture you've been pining for? And probably blown the budget, so there's not much left for an electrician. Never fear -- take our quiz and learn how to change a light fixture yourself!

What's the first step when fiddling with anything electrical?

The first step to take when fiddling with anything electrical is to trip the circuit breaker and cut the power.


What should you do if you cannot see any removable screws on the lighting fixture?

Once you have unscrewed the light cover and are trying to remove all mounting hardware, look out for decorative fasteners that may be functioning as screws.


What should you do if the lamp fixture wires and the circuit wires are held together with tape?

You need to disconnect the lamp fixture wires from the circuit wires. If they are connected with tape, cut the wires close to the tape.


What should you do if the wire coming out of the electric box is brittle or frayed?

If the wire coming out of the electric box is brittle or frayed, have that section of the circuit professionally rewired.


When installing a light fixture in a standard electrical box, how should you match up the line wires to the light fixture wires?

When matching up the line wires to the light fixture wires, match black to black and white to white. Then screw a wirenut over the exposed end, using a larger wirenut if there is more than one socket.


How much bare copper wire do you need to twist the wires together?

You need 3/4 of an inch (1.9cm) of bare copper wire to twist the line wires and fixture wires together. If necessary, peel back the insulation to expose the wires.


How long should the mounting screws in a light fixture be?

Mounting screws should be two to two and a half inches long.


How many times should you tighten the mounting screws?

You should tighten the mounting screws four or five times. Then mount the fixture by inserting the fixture's keyholes over the screw heads and twisting the fixture so the screws slide into the narrow part of the keyhole.


What happens if the mounting screws are overtightened?

If the mounting screws are overtightened, the light fixture will be distorted and misaligned. You should tighten them just so the fixture sits comfortably on the mounting screws.


What is another way light fixtures can be mounted?

Another way for a light fixture to be mounted is using a short piece of threaded pipe, called a nipple, and a cap nut to hold the nipple in place.


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