Radiation Biology and Protection Chapter 1 Questions and Answers Already Passed

Radiation Biology and Protection Chapter 1 Questions and Answers Already Passed What type of radiation is emitted by unstable atomic nuclei? A) Alpha radiation B) Beta radiation C) Ionizing radiation D) Non-ionizing radiation Which of the following is a common source of natural background radiation? A) Microwave ovens B) Medical X-rays C) Cosmic rays D) Nuclear reactors Which type of radiation has the highest ionizing power? A) Gamma radiation B) X-rays 2 C) Alpha radiation D) Neutron radiation What is the unit used to measure absorbed radiation dose? A) Roentgen B) Gray C) Sievert D) Curie Which of the following materials is most commonly used as a radiation shield? A) Lead B) Concrete C) Aluminum D) Copper What does the term "ALARA" stand for in radiation protection? A) As Low As Reasonably Achievable B) As Long As Radiation Allows Results 3 C) A Limit to Avoid Radiation Accumulation D) As Low As Radiation Allows Which organization is responsible for setting safety standards for radiation exposure? A) NASA B) FDA C) NRC (Nuclear Regulatory Commission) D) CDC Which type of radiation has the lowest penetration ability? A) Alpha radiation B) Beta radiation C) X-rays D) Gamma radiation What is the primary purpose of the radiation protection principle of time, distance, and shielding? A) To increase radiation exposure 4 B) To reduce exposure to radiation