__________________ tools do not require a grounding connection.
A. Isolated ground
B. Double-insulated
C. GFCI protected
D. Double-grounded
Answer: B
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If R coil energizes, all R contacts change position.
Answer the following statement true (T) or false (F)
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Per NCS guidelines for line widths, use ____ for thin lines.
A. 0.60 B. 0.90 C. 0.0 D. 1.00
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The accompanying figure shows the elements of a roof. What is feature 6?
A. Sheathing B. Underlayment C. Collar ties D. Rafters
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Which of the following should be adhered to when working with refrigerant?
A. Always work in a well ventilated area B. Never allow refrigerant vapors to come in contact with and open flame C. Do not transport refrigerant in the passenger compartment of a vehicle D. All of the above should be done
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