Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 11, Problem 8RQ

Which of the following methods are used to ensure snap action of low-voltage thermostat elements?

  1. a. mercury bulbs and small permanent magnets
  2. b. small permanent magnets and springs
  3. c. springs and solenoids
  4. d. solenoids and mercury bulbs
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