Noise pollution control methods pdf
Keeping car in good and quiet working order reduces the amount of noise it generates and thus it gives a great impact on noise.ġ2. How does a car in good condition can cause less pollution?ĭ) It avoids muffler chugging down the streetsĬlarification: The sound of a car without a muffler chugging down the street reduces the noise pollution. Noise canceling headphones are also used while sleeping to reduce noise.ġ1. Earplugs are a cheap drugstore purchase that makes humans sleep by barring the noise. What is used during sleep in order to avoid noise pollution?Ĭlarification: Earplugs reduced the noise pollution which can help humans to sleep peacefully. Altering paths and time of day runway is also reduced the noise pollution.ġ0. The old engines which cause more noise should be replaced by the new engines which cause less noise. What is the best way to reduce aircraft noise?Ĭlarification: Aircraft noise can be reduced significantly by using quieter jet engines. This sound tube reduced the roadway noise without detracting from the area’s aesthetics and thus it lowers the noise pollution.ĩ. In order to reduce the roadside noise which of the following product Australian Government designed?Ĭlarification: In Melbourne, Australia a special instrument called as a sound tube is designed. In some situations trees will reduce noise levels up to 50% but to be effective we need a trees barrier that is at least 50 feet deep.Ĩ. What is the best way to reduce the noise pollution around houses?ī) Built a noise resistant shield across the houseĬlarification: To block the path of noise, planting trees around houses can be an effective way. Avoid construction timings during the night in order to disturbed the surrounding places.ħ. Certain techniques should be used in order to reduce the noise generated by machineries. Noise levels at construction sites can be controlled using proper construction planning and scheduling techniques.Ĭlarification: Noise levels at construction sites can be controlled using proper construction planning and scheduling techniques. Establishing lower speed limits for highways also reduced the noise.Ħ. Proper highway planning and design are essential for controlling traffic noise. Which of the following is a way to reduce the traffic noise in the highway?Ĭlarification: The path of traffic noise can be locked by constructing vertical barriers along the highways. Poorly maintained vehicles can also increase the noise pollution in the vehicles.ĥ. What is the main source of vehicular noise?ī) Movement of the vehicle’s tyres on the pavementĬlarification: Most of the vehicular noise comes from the movement of the vehicle’s tyres on the pavement and wind resistance. Isolated machines and their enclosures from the floor can reduce the noise pollution at the source.Ĥ. How can we reduce the noise in industries?ĭ) By reduce the production of the industriesĬlarification: In industries, noise reduction can be done by using rigid sealed enclosures around machinery, lined with acoustic absorbing material. We a noise is reduced at the source tan pollution won’t occurrence in the proceeding steps and thus it won’t affect any organisms.ģ. Which is the best way to control noise pollution among the four fundamental ways?Ĭlarification: The best control method for noise pollution is to reduce the noise levels at the source. These four noise controlling ways reduce the noise pollution.Ģ. How many fundamental ways in which noise can b controlled?Ĭlarification: There are four fundamental ways in which noise can be controlled. Environment Management Assessment Questions and Answers on “Noise Pollution Control Techniques”.ġ.