According to the text, what is the purpose of interconnecting dashed lines for some electrical symbols?
A) To customize the plans for HVAC installers
B) To show general locations for fixtures, piping, and hardware
C) To help technicians interpret mechanical portions of drawings.
D) To assure electricians wire the home lighting as designed
D
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The symbol above denotes a limit switch that is ____.
a. Normally Open in the Unoperated Condition b. Normally Open in the Operated Condition c. Normally Closed Held Open d. Normally Open Held Closed
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If the time for one cycle is 0.1 second, the frequency is _____.
a. 0.1 Hz b. 0.5 Hz c. 1 Hz d. 10 Hz
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Particulate matter (PM) is also called ________
A) Smog B) CO2 C) Soot D) HC
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What term of rating or measurement is used with electric heat units?
What will be an ideal response?
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