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76 距 γ 點射源外某處之曝露率為 12 個單位,若要降至 5 個單位,假設增建因數為 1.0,則需在兩者之 間置入約多少個半值層屏蔽? (A) 2.69 (B) 1.93 (C) 1.54 (D) 1.26

71.「游離輻射防護安全標準」規定,除搶救生命外之緊急曝露人員,劑量儘可能不超過多少? (A)50毫西弗 (B) 100毫西弗 (C)250毫西弗 (D)500毫西弗

71.依據游離輻射防護安全標準,有關緊急曝露人員之劑量規定,下列何者正確? (A)為搶救生命,劑量限値為單一年劑量限度的5倍 (B)為防止嚴重危害,劑量限値為單一年劑量限度之20倍 (C)緊急曝露所接受之劑量,應與職業曝露之劑量合併記錄 (D)為減少大量集體有效劑量,劑量限値為單一劑量限度之2倍

22.所謂「時間不一致(time-inconsistent)問題」主要是指: (A)政策效果出現落後 (B)政策在事後缺乏執行誘因 (C)政策無法預測 (D)政策隨景氣自動調整

898.A car driver wants to take a long trip. Before departure, to implement a self-inspection for 'accidentprevention and handling,' which of the following practices best reflects the safety concept of 'prevention isbetter than cure'? (A) As long as the tires don't look flat, the tire pressure is fine; tread depth or cracks donot significantly affect driving safety. (B) After taking medication while ill, if you feel mentally acceptable,you should insist on driving to keep to the schedule, and just drink more coffee along the way to stayalert. (C) Inspect the vehicle condition (including the five fluids (fuel, engine oil, power steering fluid,transmission fluid, brake fluid), three waters (coolant, battery fluid, washer fluid), six lights (headlights,parking lights, turn signals, fog lights, brake lights, reverse lights), tread depth and tire pressure), and ifNo. Ans Questionyou did not sleep enough the night before, rest first or ask someone else to drive.

899.When driving inside a tunnel on a freeway or expressway and you cannot continue driving due to anemergency, you should first stop and wait for assistance. At how many meters behind the broken-downvehicle should you place the vehicle breakdown warning sign? (A) 10 meters. (B) 50 meters. (C) 100meters.