Radiation Protection Quiz Questions

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Radiation Protection Quiz Questions - Quiz

A short quiz to test your readiness for RPO Exam.


Questions and Answers
  • 1. 

    The following principles are used in radiation protection:

    • A.

      Justification, Efficiency and Optimization

    • B.

      Efficiency, Optimization and Dose limitation

    • C.

      Justification, Optimization and Dose limitation

    • D.

      Justification, Efficiency and Dose limitation

    Correct Answer
    C. Justification, Optimization and Dose limitation
    Explanation
    The principles of radiation protection are Justification, Optimization, and Dose limitation. Justification refers to the assessment of the benefits and risks of radiation exposure, ensuring that the use of radiation is justified for the intended purpose. Optimization involves minimizing radiation doses and risks by employing appropriate techniques and equipment. Dose limitation sets the maximum allowable radiation dose to individuals, ensuring that exposure is kept as low as reasonably achievable. These principles work together to ensure the safe and responsible use of radiation while minimizing potential harm to individuals and the environment.

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  • 2. 

    The hierarchy of measures to control radiation hazards should be: 

    • A.

      Administrative, engineering, personal protecting equipment

    • B.

      Engineering, administrative, personal protecting equipment

    • C.

      Personal protecting equipment, administrative, engineering

    • D.

      Engineering, personal protecting equipment, administrative

    Correct Answer
    B. Engineering, administrative, personal protecting equipment
    Explanation
    The correct answer is engineering, administrative, personal protective equipment. This hierarchy suggests that the first line of defense against radiation hazards should be engineering controls, such as shielding or containment, to minimize or eliminate exposure. Administrative controls, such as training and protocols, should be implemented to further reduce risks. Personal protective equipment, such as lead aprons or gloves, should be used as a last resort to provide additional protection. This hierarchy ensures that the most effective and comprehensive measures are taken to control radiation hazards.

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  • 3. 

    What is the most appropriate shielding material(s) to use for a source of radiation which emits both high energy beta particles and gamma rays?

    • A.

      A lead container

    • B.

      A plastic container

    • C.

      A container of lead inside a container of plastic

    • D.

      A container of plastic inside a container of lead

    Correct Answer
    D. A container of plastic inside a container of lead
    Explanation
    A container of plastic inside a container of lead is the most appropriate shielding material for a source of radiation that emits both high energy beta particles and gamma rays. This is because plastic is effective at stopping beta particles, while lead is effective at stopping gamma rays. By using both materials, the beta particles are stopped by the plastic container, and the remaining gamma rays are then stopped by the lead container. This combination provides the best protection against both types of radiation.

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  • 4. 

    When the distance a point radiation source is halved, the radiation level will be

    • A.

      Doubled

    • B.

      Reduced to one-fourth

    • C.

      Reduced to one quarter

    • D.

      Quadrupled

    Correct Answer
    D. Quadrupled
    Explanation
    When the distance to a point radiation source is halved, the radiation level will be quadrupled. This is because radiation follows the inverse square law, which states that the intensity of radiation is inversely proportional to the square of the distance from the source. So, when the distance is halved, the square of that distance becomes four times smaller, resulting in a fourfold increase in radiation intensity.

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  • 5. 

    The major pathways for radionuclide entering a radiation worker's body are: a. Inhalation, b. Ingestion, c. Absorption, d. Excretion

    • A.

      A, b, and c

    • B.

      A, c, and d

    • C.

      A, b, d

    • D.

      A, b, c and d

    Correct Answer
    A. A, b, and c
    Explanation
    The major pathways for radionuclide entering a radiation worker's body are inhalation, ingestion, and absorption. Inhalation refers to the radionuclides being breathed in through the respiratory system, ingestion refers to the radionuclides being swallowed through food or drink, and absorption refers to the radionuclides being absorbed through the skin or mucous membranes. These three pathways are the main routes through which radionuclides can enter the body and potentially cause harm to a radiation worker. Therefore, the correct answer is a, b, and c.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 13, 2014
    Quiz Created by
    Aguienator

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