Hearing protection should be worn any time the noise level exceeds _________
A) 70 dB B) 80 dB C) 90 dB D) 60 dB
C
Trades & Technology
You might also like to view...
Problem 1.46 Three steel bolts are to be used to attach the steel plate shown to a wooden beam. Knowing that the plate will support a load P = 28 kips, that the ultimate shearing stress for the steel used is 52 ksi, and that a factor of safety of 3.25 is desired, determine the required diameter of the bolts.
Trades & Technology
A trench is an excavation that has a depth greater than its width, and a width that is no greater than _____.
a. 10' b. 15' c. 20' d. 25'
Trades & Technology
The ____________________ is the lowest possible melting point of an alloy.
Fill in the blank(s) with the appropriate word(s).
Trades & Technology
When a filter circuit offers little opposition to a frequency, the frequency is said to be _____.
A. passed B. rejected
Trades & Technology