Describe the contact symbol.
What will be an ideal response?
The contact symbol is two parallel lines connected by wires.
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When an aluminum foil is used in attic spaces, it is
A) laminated to fiberglass insulation. B) laminated to ceiling gypsum board. C) laminated to inside-facing surface of roof sheathing. D) sandwiched between ceiling gypsum board and fiberglass insulation. E) laminated to outside-facing surface of roof sheathing.
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The current relay is built much like a solenoid, with copper wire wrapped around a steel hollow core holding a steel plunger.
Answer the following statement true (T) or false (F)
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Label the following furnace
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The cutter clearance gage can measure clearance angles in degrees
Indicate whether the statement is true or false
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