GFCI receptacles should be tested at least once per __________.

a. day
b. week
c. month
d. year


c. month

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Briefly describe how concrete is made and describe its beneficial properties.

What will be an ideal response?

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Which is NOT a criteria the EPA uses to define used oil?

A) Use B) Color C) Origin D) Contaminants

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Which type of single-phase induction motor is used for hard-starting applications, such as for compressors?

A. resistance-start B. capacitor-start

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Technician A says that when stress relieving on high strength steel surfaces, it must be done over a larger area than on standard or mild steel. Technician B says a limited amount of heat can be used so long as the safe temperature time threshold is not exceeded. Who is correct?

A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B

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