Izinyosi zezimoto nezomshini wamatshe zihlolwa ngendlela ehlukile ngenxa yokukhula kwazo, isinyosi somshini wamatshe simkhulu kakhulu futhi singenza umsindo omningi. Izinyosi zomshini wamatshe zivela phakathi kwezinyosi ezingu-110 kuya ku-140 ngokubukeka kwesandi!
Isinyosi esingu-150 dB sikhulu?
Isinyosi esikhulu esingu-150dB: Ukukhulu kwezinyosi ezikhipha umoya ezisetshenziswa ezimoto nezomshini wamatshe kungafika ku-150 decibels. Izinyosi ezine ezahlukene ezivela kumagremu okugqoka isikhumba zikhipha umsindo oqinile, okuzwakala kusuka emakhilomitha amaningi. Ngomsindo oqinile kangaka, yindlela efanele kakhulu futhi ephephile ukuxwayisa abanye ngokukhona kwakho.
Isinyosi somshini wamatshe sikhulu kunendluva?
Njengoba ubonile kusipho sokuhlola sikaDJD Labs ngenhla, izinyosi ezinkulu ezivela kumagremu okugqoka isikhumba ziyaphela ku-149.4 decibels. Uyacabanga ukuthi isinyosi esincane sokugqoka umoya noma isinyosi somoya singenza ngaphezu kwe-150 decibels? Ukuze kube nokulandela, ukushisa kwesitsha noma ukushisa kwebhayisikobho kuyingu-150 decibels.
Ukuhlolwa kwezinyosi zezimoto kuyini?
Isinyosi sezimoto: 110 decibels. I-club yobusuku: 110 decibels. Isihloli sase-ambulensi: 112 decibels.
Isinyosi somshini wamatshe sikhulu kanjani uma siseduze?
Umthetho uqondisa noma nini abaqambi bomshini wamatshe bazosho izinyosi — okungenani imizuzwana engu-15, kodwa hhayi ngaphezu kwe-20, ngaphambi kwezikhathi zonke zokugqoka umgwaqo; indlela yokuzisho — ngephetheni ye-2 emude, eyodwa efutshane, eyodwa emude; nokukhulu kwezinyosi — phakathi kwe-96 kuya ku-110 decibels.
Ukuhlolwa kwezinyosi zomshini wamatshe ne-Pressure ne-dB
Yikuphi umoya oqhamukayo emhlabeni?
I-Hornit dB140 inezinhlamvu ezingu-140, lokhu kwenza kube yilowo moya oqhamukayo emhlabeni.
Umqondo wezitimela zama-diesel uqhamuka kanjani?
Umqondo wokugcina wezitimela u-110 decibels, okuyinto isidingo esisha. Umqondo wokwesekwa uhlala ku-96 decibels.
Umoya wokudubula uqhamuka kanjani?
Izibhamu Ziyancibilika
Iningi lezibhamu zenza umsindo ongaphansi kwengu-140-dB. Irifile encane ye-.22-calibre ingenza umsindo owu-140 dB, ngenkathi irifile enkulu nezibhamu zingenza umsindo ngaphezulu kwe-175 dB.
Ukuqhamuka kwe-jet engine kungenzeka kubangele amadecibel angaki?
Ngaphandle kwama-engine wezindiza (ama-140 dB ngesikhathi sokutakula) kanye nemigomo eminye yezindiza ingaba namazinga aphansi noma aphezulu wezinsimbi. Ukuvikelwa komsindo kuyahluka kuma-aircraft.
Ukuqhamuka kwetafula yomqulu kungenzeka kubangele amadecibel angaki?
Isibonelo, itafula yomqulu (ama-100 decibels) iqhamuka kabili kunokuthi igadi lika-tractor (ama-92 decibels). Ukuhamba kude nomsindo kuyabonakala. Uma umuntu ehamba kude nomsindo, ukuqhamuka kweqiniso kuyashona ngokushesha.
Ukuqhamuka kwe-120 decibels kungenzeka kubangele ukuthi kuyancibilika kanjani?
I-120 – 140 decibels: Njengoba, umcimbi wezinkulungwane, ama-auto racing, noma isando elifaka umthi. I-125 – 155 decibels: Njenge, amakrakeri noma izikrini, noma i-jet engine. I-170 – 190 decibels: Isibonelo, ukudubula okudubulwa ngesibhamu noma ukuphakamiswa kwerokhethi.
Ukuqhamuka kwesikhwama sezindiza kungenzeka kubangele ukuthi kuyancibilika kanjani?
Umsindo ophakeme kakhulu kwezakhiwo ezinhle kakhulu (ezifaka indawo yokuphila enjengesikhumba sencane) ungenza ama-115 decibels.
Ukuluma kwezihlabe kwezitimela kungamaphiko angaki?
Izitimela zisebenzisa amaphiko abukhali kakhulu okuluma kwezihlabe kwezitimela ku-175 decibels. Izitimela zidinga umsindo omkhulu kakhulu wengxoxo ukuze zazise umuntu osemkhakheni wonke ukuthi isitimela sizofika.
Ukuluma kwezihlabe kwebhasi kungakanani?
Kodwa amabhasi angasese asebenzisa izihlabe ezinomsindo ophakeme kangaka ku-110 kuya ku-130 decibels.
Ukuluma kwezihlabe kwemshini yokuthipa ingani?
“Amalawnmower agezwe ngemifino angaba phakathi kuka-90 decibels kuya ku-106 decibels. Lezo zinivo zikhona lapho siqala ukukhathazeka ngokulimala kwamakhaza akho emsindo,” kusho uMeaghan Reed, umqondisi wesikole sezincwadi zezindlela zokuzwa eMassachusetts Eye and Ear Infirmary. Noma ngabe i-85 decibels ingakwenza ulwazi njengoba ushintsho olude.
Ukuluma kwezihlabe kwemshini yokugoba kungakanani?
Isibonelo, imshini yokugoba inomsindo owodwa ophakeme kangaka ku-109 dB. Ngaphandle kokuvikelwa okufanele, ukugijima imshini yokugoba imizuzu eyi-2 kuphela kungaholela ekulimaleni kwendlela yokuzwa!
Ukuluma kwezihlabe kwesikrini somuntu kungakanani?
Izinto eziyizinkulungwane ezinomsindo ephakeme njengomshini wokucoca noma izikhali zezandla zingadlula i-80 dB. Izikrini zomuntu zingaba zinomsindo ophakeme, zingadlula i-100 dB (ngo-Mashi 2019, irekhodi yomhlaba yilona eli-129 dB!) —kodwa ngempela ufuna ukugwema lokho ngoba izikrini ezinomsindo ophakeme kangaka zingakwazi ukulimala amakhaza akho!
Ukuthi yimaphi amandla okukhuluma kwe-rifle ye-.22?
I-rifle ye-.22 ivame ukusetshenziswa ukuzingela izilwane ezincane futhi itholakala kakhulu kubalandeli bamahholo. Izibhamu ze-.22 zenza amandla okukhuluma aphakathi kuka-120 kuya ku-140 dB (decibels), okusho ukuthi ziyamemeza kunendaba zangaphandle, ezikhipha amandla okukhuluma angu-60 decibels.
Ukuthi yimaphi amandla okukhuluma kwezibhamu zezinhlangano zomphakathi?
Isibonelo, ngaphandle kwe-bayonet ne-crossbow (ezisetshenziswa namuhla amabutho akhethekile), yonke indlela yokulwa yezibhamu zezinhlangano zomphakathi izokhipha amandla okukhuluma angaphezu kwe-140 dB peak sound pressure level (dBP), okuyinto amandla okukhuluma okuyinto kungenzeka ukuthi kube yisikhathi esisodwa esilondoloziwe kokukhuluma okuphazamisiwe (OSHA, 1983.
Yikuphi okukhulu phakathi kwesigubhu somoya nesigubhu sethreni?
Yikuphi ukuphazamiseka phakathi kwamahhovisi omoya amancane kanye nezinkulu ze-threni? A: Amahhovisi omoya amakhulu athreni avame ukuba amemeze futhi adlule amahhovisi omoya amancane. Amahhovisi ethu omoya amancane akhiqiza amandla okukhuluma aphakathi kuka-146 kuya ku-153 db, ngesikhathi amahhovisi omoya amakhulu akhiqiza amandla okukhuluma angu-150 kuya ku-158 db.
Ukuthi yimaphi amandla okukhuluma kwezitimela zesitimela se-subway dB?
Futhi, ngokufunda okuphezulu ngempela kwezinye izikhala zokuphazamiseka ku-119 dB kumapulatifomu kanye ne-120 dB kumaqoqo – ngokwamandla okukhuluma angempela ahlotshiswe kulesi sampuli – isitimela se-subway se-NYC singenakho ukuba yisimo sokukhuluma esingalondoloziwe.
Yini umthetho wombobo womtshina?
Izitimela noma izinjini ezihamba ngokushesha kunokuthi zihlangane ne-45 kph kufanele ziqale ukudlala imbobo noma kuphela, kodwa hhayi ngaphezu kwezinye, eyodwa kwamaqembu amane (402.34 amamitha) phambi kokugqoka okulungiselelwe umphakathi. Nokho, noma isixazululo esiphelele esinikezwa yimbobo sizoba ngaphansi kwama-15 amasekhondi ngokwesikhathi.