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 commonly used for supporting multiple conduits in metal buildings as they offer a rigid and adjustable framework. Tie - wraps around beams may not provide sufficient support for a large number of conduits and can be less secure. Drilling into beams and purlins can weaken the structural integrity of the building. One - hole straps are more suitable for fewer or smaller conduits.

Answer:

A. strut - type systems