IRRSP PRACTICE TEST 2024 /COMPLETE QUESTIONS AND CORRECT ANSWERS /A GRADED. The term "Curie" defines: a. The exposure of a radioactive source b. The intensity of a radioactive source c. The activity of a radioactive source d. The output of a radioactive source - ANSWER-The activity of a radioactive source Which of the following are symptoms of an acute extremity overexposure? a. Nausea, vomiting, diarrhea b. Fatigue, nausea, reddening of the skin c. Diarrhea, blistering, loss of hair d. Reddening of the skin, loss of hair, blistering - ANSWER-Reddening of the skin, loss of hair, blistering The reason the gamma radiation emitted from a Cobalt-60 source is more penetrating than the gamma radiation emitted from Iridium-192 is due to the: a. Higher output per Curie from the Co-60 b. Longer half life of the Co-60 c. Greater intensity from the Co-60 d. Higher gamma ray energy from the Co-60 - ANSWER-Higher gamma ray energy from the Co-60A 0.400 inch piece of lead shielding will reduce the radiation intensity from an Iridium-192 source by: a. 3/4 b. 1/2 c. 1/4 d. 1/8 - ANSWER-3/4 When shielding against high-energy gamma rays, which of the following characteristics provide the most effective shield? a.