Skills and Trades

Copper is the metal most commonly used as an electric conductor.

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Which of the following can be classified as a semiconductor?

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Tiny particles called ________ rotate in orbits around the nucleus of an atom.

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The process by which atoms either gain or lose electrons is called

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The particles that can be found within an atom are:

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The field of electronics is based on the ability of semiconductors to ________ an electric signal.

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Electricity is commonly defined as:

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An atom possesses a neutral electric charge because:

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A simple continuity tester circuit is made up of:

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A normal copper atom contains 29 electrons. According to the Bohr model of the atom, the placement ...

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A good insulator of electricity is a substance that:

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A continuity tester is used to check a fuse. When the fuse is connected across the test leads, a ...

Started by Gabby

The earth is considered an effective ground-fault current path because its resistance is very low.

Started by ninaj

Metal ladders are approved for use on electrical installations.

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Lockout/tagout devices must be installed by every authorized employee involved in the work.

Started by emoedee

Grounding is the same as bonding.

Started by lauraleepop

GFCIs sense leakage currents too small to operate standard branch circuit fuses or circuit breakers.

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Electric shock occurs when the body becomes part of the electric circuit.

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Bonding is the permanent joining of metal parts that aren't intended to carry current during normal operation.

Started by rissygurl1124

Arc faults can occur as series or parallel arcs.

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An arcing fault involves current flowing through the air.

Started by ninaj

When opening a disconnect switch:

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What type of material is capable of bursting into flames?

Started by urmomsucks

What is the proper distance from the foot of a straight ladder to the wall?

Started by lauraleepop

What are the minimum and maximum distances that a scaffold plank can extend beyond its end support?

Started by sbegs