The ____________________ of an AC circuit is the number of currents alternating at different time intervals in the circuit.
Fill in the blank(s) with the appropriate word(s).
phase
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What is the major problem with using wall cavities for ductwork?
A) air moving through a wall cavity makes a lot of noise B) Installing registers and grilles on wall spaces used for ducts is difficult C) Using a wall cavity is generally less convenient than running ductwork D) It is nearly impossible to make the cavity air tight
What is the airflow through a 2 foot by 3 foot hole if the air velocity is 100 feet per minute?
A) 2 × 3 = 6 sq feet; 6 × 100 FPM = 600 CFM B) 2 + 3 = 5 sq feet; 5 × 100 FPM = 500 CFM C) 2 × 3 = 6 sq feet; 100 FPM / 6 = 17 CFM D) 100 CFM
The Underground Railroad consisted of
A. an informal network of homes where slaves could hide on their escape to freedom. B. a train that hid slaves in cargo areas and carried them to freedom in the north. C. a vehicle for capturing and returning runaway slaves back to the south. D. a radical new transportation design. E. None of these choices are correct.
What do you use to wipe (to clean) the manicure table?
What will be an ideal response?What will be an ideal response?