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dakota98 dakota98
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6 years ago
The earliest thermometers were based on:
 
  A) The expansion and contraction of a spiral piece of metal.
  B) The position of the sun casting shadows.
  C) The expansion of a fluid trapped inside a glass tube.
  D) The expansion and contraction of air trapped in a tube above a column of liquid.

 Q. 2

Valves that use motors that move in tiny increments are:
 
  A) Cross charged expansion valves. B) Pulse modulated valves.
  C) Stepper motor valves. D) Electronic expansion valves.

 Q. 3

The two metals used in a Type K thermocouple are:
 
  A) Aluminum and copper. B) Copper and antimony.
  C) Chromel and alumel. D) Iron and steel.
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ModorfielModorfiel
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6 years ago
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dakota98 Author
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6 years ago
Just got PERFECT on my quiz
joyceess
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Yesterday
You make an excellent tutor!
MAry1395
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2 hours ago
Thanks
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