What type of utp cabling is used in building open-air returns to reduce the amount of toxic components emitted into the air if a fire should occur?

Plenum cabling

Explanation

As the plenum cabling are fire resistent so it will not cause the toxic components in case of fire.

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

answer; equivalent to a one(1) horsepower motor;