with 100% Correct Answers
The frequency of a sound wave refers to - ✔✔a. the
number of cycles it completes in one second
. The average sound level is 70 dBA, and the threshold of
pain is reached at _____ dBA - ✔✔c. 130 dBA
. In integrated ceiling systems, you would normally find -
✔✔c. both 30" × 60" and 60" × 60" tiles
An exposed grid ceiling system uses the _____ as the
primary support members of the grid system - ✔✔a. main
runners
. Improperly stored ceiling tiles can expand or warp,
causing a poor fit, as a result of - ✔✔d. excessive humidity
1
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.