NRRPT Prep Complete Exam Verified Questions and Solutions A+ Pass Guaranteed! Latest 2026/2027 Updated

NRRPT Prep Complete Exam Verified Questions and Solutions A+ Pass Guaranteed! Latest 2026/2027 Updated Question Number: 1 Fundamentals of Radiation Protection A low energy alpha detector is usually effective if the detector is distant from the source. A) 1/4 inch B) 1/2 inch C) 1 inch D) 1 1/2 inches E) 2 inches - -The correct answer is: A Low energy alpha particles can only travel less than 1/2 inch in air. Therefore, one must be closer than this to detect them. Question Number: 2 Fundamentals of Radiation Protection A sample of I-131 (half life = 8 days) is kept for 80 days, at which time the activity is 1 µCi . What was the original activity? A) 2.0 mCi B) 1.0 mCi C) 1.5 mCi D) 3.5 mCi E) 4.0 mCi - -The correct answer is: B After 10 half lives, the remaining activity is approximately 1000th of the original amount. Therefore, if there was 1µCi left after 10 half lives, then there must have been 1000 times more to start with. Hence, 1 µCi * 1000 = 1 mCi. Question Number: 3 Fundamentals of Radiation Protection A sample of radioactive material is reported to contain 2000 picocuries of activity. Express this value as disintegrations per minute. Continues...