When gathering information to design a porch, wind direction can be observed on site or regional wind information is available from the ____.
A. NWA
B. FSC
C. NOAA
D. INWF
Answer: C
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Mineral wool is _____.
a. acidic b. a skin irritant c. flammable d. electrically conductive
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Para un tamaño dado, el tipo de soporte que tiene mayor resistencia es _____
a. la viga maestra armada b. la viga maestra de glulam c. la viga maestra de madera maciza d. la viga en doble T de acero
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Which type of metering device is able to respond to changes in system operations?
A) Hand-operated expansion valves B) Modulating metering devices C) Fixed valves D) Fixed metering devices
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Starting methods for single-phase motors involve disconnecting the start winding of a split-phase motor when the motor reaches about ____ percent of its rated speed.
A. 45 B. 55 C. 65 D. 75
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