What is the advantage of a noncontact voltage detector over a voltmeter?
A) It connects wirelessly to smartphones.
B) It can measure more than one electrical characteristic.
C) It does not have to contact the energized electrical circuit to indicate voltage.
D) It provides a more accurate reading.
C
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The pressure switch is used to start the compressor on most systems.
Answer the following statement true (T) or false (F)
Which of the following is not a basic color for horses?
A. chestnut B. white C. bay D. black E. gray
When gutters are installed on a metal roof, the gutter material should be compatible with the roof metal to avoid ____ that occurs between different materials.
A. galvanic corrosion B. rust C. friction D. decay
What device may be used to ensure that air is flowing through a duct before an electric strip heater is energized?
What will be an ideal response?