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Exam 3: Electric-Heat Equipment

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Question 1

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The amount of heat energy in 1 watt of electrical energy is _________________________.

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Question 2

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The resistance wire used in electric heating elements is usually ____.

A) copper
B) nickel steel
C) nickel chromium
D) aluminum

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Question 3

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For maximum element life, the element must have sufficient air over all parts of the element to prevent any part of the element from glowing red.

Electric heating units provide almost instant heat. Therefore, anticipators are not needed in electric heat thermostats.

An electric unit blows fuses periodically during the winter heating season. Checking the amperage draw of the elements shows normal amperage draw for the size of the elements. What other problem could cause this?

The resistance wire used in electric heating elements is usually ____.

Explain the difference between a "pictorial" diagram and a "schematic."

All electric furnaces use package sequencers.

How should you determine the heat anticipator setting on the room thermostat using a package sequencer?

Why are baseboard electric heaters placed on the outer walls of a room?

All electric furnaces use package sequencers.

In order to provide time delay between stages of electric heat, the controls that are used are called ____________________.

Electric heating units provide almost instant heat. Therefore, anticipators are not needed in electric heat thermostats.

In order to prevent a duct-mounted electric heater from being energized when the fan is not on, an ____________________ should be used.

A set of contacts actuated by a magnetic coil is called a ______________________________.

How should you determine the heat anticipator setting on a room thermostat using individual sequencers?

The amount of heat energy in 1 watt of electrical energy is _________________________.

If the fan were to fail and the limit switch stuck closed, the element would be cut off by the _________________________.

Why aren't contactors used in residential and small commercial electric heating units?

What term of rating or measurement is used with electric heat units?