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It is around 92 dB.
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∙ 12y ago
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How do you test noise levels?
Noise levels of sound in the air are tested by a sound pressure level meter (SPL meter).Noise levels in an electronic circuit are tested by a volt meter.
Why planes doesnt takeoff at 12PM and why?
Noise regulations in many areas prevent aircraft taking off after midnight.
Definition Noise pollution?
Harmful or annoying levels of noise, as from airplanes, industry, etc.
Which federal legislation sets standards for maximum noise levels?
Noise Control Act
How do you reduce Aircraft noise?
The design of the engine intake and exhaust can do a lot to reduce noise levels.
What is that noise before takeoff on commercial airplanes that somehow resembles to rubber being rubbed to the fuselage?
Hydraulic fluid flowing into the flight control actuators so quickly that it is readily apparent in the cabin without wind noise
Is noises an adjective?
No, noise is a noun, which might be an adjunct (noise levels, noise ordinance).The form "noisy" is an adjective because it describessomething.
What does climbout mean in airplanes?
Climb out is the phase of flight which begins immediately after takeoff and continues until the airplane levels off at its cruising altitude.
What are the advantages of alternative engine systems enabler for civil and military aeronau-tics and space?
Alternative systems are telemetrics of commercial and military engine systems. This capability will anticipate and prevent failures, using control logic to reconfigure engine operation. This capability will improve time on wing, improve readiness, and reduce operating costs. These are essential to the creation of variable-cycle engines. These engines use variable geometry to optimize performance for the mission takeoff, climb, cruise,Descent, and landing. Alternative engine needed to reduce fuel consumption and environmental impact by morphing alternative engine needed to reduce fuel consumption and environmental impact by morphing the aircraft or engine to suit the needs of the moment—for a takeoff configuration to address noise require- the aircraft or engine to suit the needs of the moment—fora takeoff configuration to address noise require- a takeoff configuration to address noise require-a takeoff configuration to address noise require- ments and a cruise configuration optimized for fuel burn and missions at altitude These engine systems can be used to optimize a direct application to space vehicles.
High levels of noise can?
harm eardrums really super bad
What maximum noise levels are you excluded prior to retest?
80 db
What is the lowest level of noise that can cause hearing loss?
The lowest level of noise that can cause hearing loss is 85 dB. Prolonged exposure to noise at this level or higher can cause permanent damage to the tiny hair cells in the inner ear which are responsible for transmitting sound signals to the brain. In general any noise louder than 80 dB can cause hearing loss so it is important to protect your hearing when exposed to these levels of sound. Noise levels below 70 dB do not typically cause hearing loss. Noise levels between 70 and 85 dB can cause hearing loss with extended unprotected exposure. Noise levels above 85 dB can cause hearing loss with shorter unprotected exposure.It is important to be aware of the noise levels around you and to take steps to protect your hearing. If a noise is too loud wear hearing protection such as ear plugs or ear muffs. Additionally it is important to take regular breaks away from noise to allow your ears to rest.
