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A thermostat is used for which of the following? maintaining the temperature in a room turning a heating system on turning a heating system off all of the above

User Shawn Lu
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2 Answers

1 vote
Thermostat can do all the three.

So answer is D.
User Xcodian Solangi
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All of the above, it's a very useful device :P 
User Diogok
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