Los requisitos para la instalación residencial y comercial de equipos y sistemas de alarma contra incendios se encuentran en:
a. NFPA 1.
b. NFPA 70®.
c. NFPA 72®.
d. NFPA 101®.
c. NFPA 72®.
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This geometric tolerance is a cross-sectional or single-line tolerance zone in the shape of two concentric circles.
a. concentricity b. circularity c. cylindricity d. runout
The foundation design does not address specific site soil condition for seismic activity.
Answer the following statement true (T) or false (F)
What is the color of the warning light that indicates hydraulic system failure?
A) Red B) Yellow C) Amber D) None of these
Before handling printed circuit boards, technicians should discharge any static electricity from their bodies by:
A) Touching a grounded metal frame. B) Momentarily grabbing both ends of the power source to neutralize themselves. C) Wiping their hands with a silk rag to remove excess electrons from their hands. D) Rubbing their feet several times on the carpet to remove excess electrons.