Answer:
The correct option is;
1. A physical room that bounces sound off the wall
Explanation:
In Engineering, An echo chamber is a room which is used to produce a persistent repetition of a sound after the initial sound is made mainly with the intention of recording purpose
Echo chambers are used in radio programming for sound cave or large room sound effects such that the reverberations are picked up by microphones which provides amplification
Current day echo chambers are achieved by electronic sound effects functions present in modern sound equipment, however, physical echo chambers, such as the famous Capitol Studios echo chambers are still in use.
Why is transverse unequal length wishbone preferred to that of equal length?
Answer:
It allows the wheels to move of the neutral position without the tires scrubbing
Explanation:
The double wishbone suspension is independent and it can be used in both the front wheels and it affords very good control of the outward or inward tilting of the front wheel and it keeps the wheels perpendicular to the road surface
However, when equal length parallel wishbone are installed, it gives rise to scrubbing of the tires as the wheels turn in the tracks
The development of unequal length non-parallel transverse or converging wishbones with A-arms suspension resolved the tire scrubbing effect on the wheels when moving out of the neutral position.