Radiation Protection MCQs

What is the primary purpose of radiation protection?
- A) To increase radiation exposure
- B) To minimize exposure to ionizing radiation
- C) To improve imaging quality
- D) To enhance treatment efficacy
Which unit is used to measure the dose equivalent of radiation?
- A) Gray (Gy)
- B) Sievert (Sv)
- C) Becquerel (Bq)
- D) Roentgen (R)
What is the maximum permissible dose of radiation for radiation workers in a year?
- A) 1 mSv
- B) 50 mSv
- C) 100 mSv
- D) 20 mSv
Which principle is primarily used in radiation protection to reduce exposure?
- A) Distance
- B) Shielding
- C) Time, Distance, and Shielding
- D) Temperature
What does ALARA stand for in radiation protection?
- A) As Low As Reasonably Achievable
- B) As Low As Reasonably Allowable
- C) As Low As Risky As
- D) As Long As Radiation Allows
Which type of shielding material is most effective against gamma radiation?
- A) Plastic
- B) Lead
- C) Paper
- D) Wood
Which of the following is a common source of occupational radiation exposure?
- A) Medical imaging equipment
- B) Natural sunlight
- C) Household appliances
- D) Food products
What is the primary method of limiting radiation exposure in medical settings?
- A) Lead aprons and barriers
- B) Reducing the number of patients
- C) Increasing imaging time
- D) Using non-ionizing radiation
What is the term for the amount of radiation a person is exposed to over time?
- A) Dose
- B) Cumulative dose
- C) Exposure rate
- D) Radiation quality
What is the recommended protective equipment for a radiologic technologist?
- A) Lead apron
- B) Gloves only
- C) Face mask
- D) Safety goggles
What type of radiation does not require shielding from air?
- A) Beta radiation
- B) Alpha radiation
- C) Gamma radiation
- D) X-rays
In a medical facility, what is the purpose of a radiation survey meter?
- A) To provide treatment
- B) To measure radiation levels in the environment
- C) To shield against radiation
- D) To diagnose conditions
What is the main reason for establishing controlled areas in radiation work environments?
- A) To limit access to trained personnel
- B) To reduce operational costs
- C) To improve patient comfort
- D) To facilitate faster imaging
What is the effect of increasing distance from a radiation source?
- A) Reduces exposure significantly
- B) Increases exposure
- C) Has no effect
- D) Causes damage to tissues
Which of the following is true about personal dosimeters?
- A) They do not require calibration.
- B) They are used to measure individual radiation exposure.
- C) They can be reused indefinitely.
- D) They provide real-time radiation levels only.
What is the role of a radiation safety officer (RSO)?
- A) To conduct patient imaging
- B) To oversee radiation safety programs and compliance
- C) To administer radiation therapy
- D) To operate imaging equipment
What is the purpose of using barriers in radiation protection?
- A) To enhance imaging quality
- B) To absorb or attenuate radiation
- C) To facilitate patient movement
- D) To improve workflow efficiency
Which of the following is NOT a type of radiation?
- A) Alpha particles
- B) Beta particles
- C) Gamma rays
- D) X-rays
What is the primary health risk associated with radiation exposure?
- A) Muscle strain
- B) Cancer
- C) Allergic reactions
- D) Respiratory issues
What safety feature is essential for fluoroscopy rooms?
- A) Lead-lined walls
- B) Windows
- C) Ventilation systems
- D) Soundproofing
In radiation protection, what is the function of a collimator?
- A) To measure radiation levels
- B) To limit the radiation beam size
- C) To shield against radiation
- D) To amplify radiation signals
What does the term “radiation hazard” refer to?
- A) A beneficial source of radiation
- B) The potential for harmful effects from radiation exposure
- C) An operational safety device
- D) A type of imaging technique
Which of the following is an example of administrative control in radiation safety?
- A) Use of lead aprons
- B) Establishing protocols and procedures
- C) Using shielding materials
- D) Increasing distance from the source
What type of monitoring is performed to assess radiation exposure in workers?
- A) Environmental monitoring
- B) Biological monitoring
- C) Air quality monitoring
- D) Temperature monitoring
What is the effect of using higher kVp settings in X-ray imaging?
- A) Increased radiation exposure
- B) Reduced patient dose with improved image quality
- C) More scattered radiation
- D) Decreased image resolution
What is the purpose of a lead glass shield in imaging rooms?
- A) To protect the eyes from radiation
- B) To enhance image quality
- C) To reduce heat
- D) To improve ventilation
What is the term for radiation-induced damage that may manifest years after exposure?
- A) Acute effects
- B) Late effects
- C) Immediate effects
- D) Short-term effects
Which type of radiation has the highest ionizing power?
- A) Gamma radiation
- B) Alpha radiation
- C) Beta radiation
- D) Neutron radiation
What is a key responsibility of healthcare professionals regarding radiation protection?
- A) To ensure patient and staff safety from radiation exposure
- B) To increase imaging frequency
- C) To limit patient access to treatments
- D) To operate machinery
Which of the following actions helps reduce exposure to radiation during fluoroscopic procedures?
- A) Using pulsed fluoroscopy
- B) Increasing the duration of the procedure
- C) Reducing the distance from the source
- D) Removing shielding materials

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