NEC Article 386 contains _____.
a. the installation specifications of surface metal raceways
b. information on multi-outlet assemblies
c. regulations for combination raceways
d. a list of the various types of special raceways
a. the installation specifications of surface metal raceways
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Fall migrations are triggered by _____
a. warmer weather b. rainfall amounts c. colder weather d. food sources
Cutting a 2? (5 cm) aluminum plate requires a(n) _____
a. low gas flow rate b. high-cutting amperage c. low-cutting amperage d. oxygen/air plasma/shield gas combination
A balloon is a circle placed on the drawing with a part identification number inside the circle. Each balloon is connected to its related part with a leader line.
Answer the following statement true (T) or false (F)
What is the difference between a heat recovery ventilator (HRV) and an energy recovery ventilator (ERV)?
a. The ERV can dehumidify in the cooling mode. b. The HRV can act as a humidifier in the heating mode. c. The ERV has a durable metal core. d. The HRV cannot be used in very cold climates.