Irrsp Practice Test Graded A+ To Pass

What basic methods should a radiographer use to control exposure to radiation? a. Half life, shielding and distance b. Alarm rate meters, shielding and distance c. Shielding, film badges and distance d. Time, distance, shielding and ALARA considerations {Ans: Time, distance, shielding and ALARA considerations}An element is identified by the number of _______ in it's nucleus. a. Photons b. Neutrons c. Electrons d. Protons {Ans: Protons}The thickness of shielding material required to reduce a radiation intensity to one-half it's original value is known as the: a. Tenth value layer b. Half life c. Roentgen value layer d. Half value layer {Ans: Half value layer}The use of 4 half value layers of shielding will reduce an intensity by a factor of: a. 4 b. 8 c. 16 d. 32 {Ans: 16}In controlling exposure to x-rays, which of the following is true? (Answer with A, B, C, or D) a. Shielding may be less effective than with gamma radiation due to the continuous nature of x-rays b. Working distance calculations must take into account the build-up factors c. High Radiation and Restricted area boundaries must be posted under the same requirements as when using gamma radiation sources d.