Na'urori masu auna firikwensin mu suna fuskantar gwaji da yawa yayin masana'anta, gami da gwajin aikin lantarki,
gwajin zagayowar rayuwa,
gwajin girgizawa da gwajin kwanciyar hankali na dogon lokaci, don tabbatar da cewa suna aiki da dogaro a ƙarƙashin yanayin aiki daban-daban.