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Author Question: When electric strip heat is used with a heat pump, when is the electric strip heat energized? A) ... (Read 114 times)

Cooldude101

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on: Jul 24, 2018
When electric strip heat is used with a heat pump, when is the electric strip heat energized?
 
  A) Both the heat pump and strips come on in the first stage.
  B) Both the heat pump and the strips come on in the second stage.
  C) The electric strip heat comes on in the first stage, and the heat pump in the second stage.
  D) The heat pump comes on in the first stage, and the strips in the second stage.

Question 2

A triac can be described as:
 
  A) Three silicon-controlled rectifiers (SCR) in series.
  B) Two silicon-controlled rectifiers (SCR) in parallel.
  C) Two silicon-controlled rectifiers (SCR) in series.
  D) Three silicon-controlled rectifiers (SCR) in parallel.


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vish98

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Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


Cooldude101

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Reply 2 on: Jul 24, 2018
Gracias!

xiazhe

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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