A conductor with failed insulation contacts the metal edge of a grounded metal wireway. This is known as a(n) _____.

a. overload
b. short circuit
c. ground fault
d. arc fault


c. ground fault

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Optional standby systems are covered in _____.

a. NEC Article 700 b. NEC Article 701 c. NEC Article 702 d. NEC Article 705

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Paul Graham's suggestion to travel to New York and take high-resolution pictures for Airbnb customers was a scalable method for increased profitability.

Answer the following statement true (T) or false (F)

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Automatic expansion valves are similar in operating concept to:

A) Manual valves. B) Electronic expansion valves. C) Fixed restrictions. D) Pressure regulators.

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What do environmental research organizations use to survey crops and ground features?

A. drones B. RFID cameras C. GPS monitors D. GoPro

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