Exam 7: Heating Systems

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Photovoltaic systems are only suitable for use in areas with a lot of sunlight all the time.

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False

An ohm is measure of electrical:

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D

Which of the following is not a disadvantage of wind power?

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C

Electrical current generated by a battery is a form of direct current.

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You have a coffee maker plugged into a 110-volt circuit. You know that it draws 2.3 amps. What is the coffee maker's resistance?

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A volt is a measure of electrical:

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Which of the following is an advantage of an uninterruptible power supply (UPS) system?

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An amp (or ampere) is a measure of electrical:

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Alternating current is an electrical current that is supplied with both positive and negative polarity.

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Which of the following indicates the "warmness"or "coolness"of the color of light from an artificial source?

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You have a television that uses 80 watts plugged into a 110-volt electrical circuit. How many amps does the television draw?

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The part of a fluorescent lamp that controls the electricity going to the tube is called the:

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