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

Fill in the blank(s) with the appropriate word(s).


sequencers

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When supporting insulated pipelines, use a _____ with a clevis.

a. spring can b. shield c. trapeze d. pipe clamp

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Voltage in a transformer moves from the primary winding to the secondary winding by conductance

Indicate whether the statement is true or false

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DWV copper stands for drain, waste and vent and is also a lightweight copper not typically used in the HVAC/R industry as far as refrigerant-carrying applications are concerned.

Answer the following statement true (T) or false (F)

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Both lockout and tagout devices are required when isolating equipment.

Answer the following statement(s) true (T) or false (F)

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