Question

when installing a large number of conduits in a metal building, which is the preferred method of support?
strut - type systems
tie - wraps around beams
drilling into beams and purlins
one - hole straps

Explanation:

Strut - type systems are preferred for supporting a large number of conduits in a metal building as they offer strong, adjustable, and organized support. Tie - wraps may not be as sturdy for a large quantity, drilling can damage the structure, and one - hole straps may not be sufficient for multiple conduits.

Answer:

A. strut - type systems