Explain what transmission loss (TL) is. What is its unit of measurement?
What will be an ideal response?
TL is the decrease in sound level as the sound transmits (passes through) an assembly. It is a property of the assembly as a function of sound frequency. Its unit of measurement is decibel (dB). For example, if the sound level at certain frequency on one side of a wall is 100 dB and on the other side, it is 80 dB, and assuming that the given wall is the only way the sound will transmit from one side to the other side, the wall's TL = 100 - 80 = 20 dB.
You might also like to view...
How much water do Americans use each day?
What will be an ideal response?
Radial tires can cause a vehicle to pull to one side while driving. This is called "radial tire pull" and is often due to ________
A) The angle of the body (carcass) plies B) Tire conicity C) Bead design D) Tread design
The system bonding jumper for a system that supplies more than one disconnecting means is sized
A. based on the full-load current rating of the transformer secondary windings. B. based on the total circular mil area of the derived ungrounded conductors.
When torquing the rim lug (clamp) nuts on a truck cast spoke wheel, which of the following should be true about the method, torque sequence, and position you torque each nut?
A. wheel down, circular torque sequence, torque each nut at 12 o'clock B. wheel down, criss-cross torque sequence, torque each nut at 6 o'clock C. wheel up, criss-cross torque sequence, torque each nut at 12 o'clock D. wheel up, circular torque sequence, torque each nut at 6 o'clock