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Faster than the speed of sound. 

This has occurred when an object that is moving back and forth goes through a complete cycle.    Hint: The Beach Boys say  “I’m picking up good ______________.” 

Which of the following statements regarding radiant heaters is false?

If a high-limit switch fails, ____.

Electric heating produces great amounts of draft.

A pressure switch can detect airflow through a duct heater by measuring air pressure before and after the duct heater.

Like a bimetal disc, a fusible link can be reset.

To confirm airflow through an electric furnace, a ____ may be used.

To avoid drawing too much current that could result in voltage drops or damage to property, ____ are often wired on their own separate, dedicated circuits.

An uninsulated heating element composed of flat strips is referred to as a(n) ____ heating element.