Quiz on Digital Metal Detector
{“questions”:{“ytx29”:{“id”:”ytx29″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary function of a digital metal detector?”,”desc”:””,”hint”:””,”answers”:{“yfiuo”:{“id”:”yfiuo”,”image”:””,”imageId”:””,”title”:”A) To find treasure under water”},”0xpo0″:{“id”:”0xpo0″,”image”:””,”imageId”:””,”title”:”B) To detect metallic objects buried beneath the ground”,”isCorrect”:”1″},”h6zas”:{“id”:”h6zas”,”image”:””,”imageId”:””,”title”:”C) To scan objects for radioactive material”},”x1da0″:{“id”:”x1da0″,”image”:””,”imageId”:””,”title”:”D) To measure the size of objects underground”}}},”njbv1″:{“id”:”njbv1″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which technology do most modern digital metal detectors use for detection?”,”desc”:””,”hint”:””,”answers”:{“kak0z”:{“id”:”kak0z”,”image”:””,”imageId”:””,”title”:”A) Radar waves”},”4eh87″:{“id”:”4eh87″,”image”:””,”imageId”:””,”title”:”B) Magnetic fields”},”zxsrs”:{“id”:”zxsrs”,”image”:””,”imageId”:””,”title”:”C) Electromagnetic induction”,”isCorrect”:”1″},”ef1x2″:{“id”:”ef1x2″,”image”:””,”imageId”:””,”title”:”D) Light reflection”}}},”40ocz”:{“id”:”40ocz”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is…
