Radiation Protection Chapter 5
Questions and Answers Latest Update
Graded A+
What is the main reason for using protective clothing in radiation environments?
✔✔A) To prevent radiation from reaching the body and causing harm
B) To make workers feel more comfortable
C) To maintain the temperature of the workplace
D) To improve the clarity of radiation images
What is the key difference between primary and secondary radiation?
✔✔A) Primary radiation is emitted directly from the source, while secondary radiation is
scattered or emitted after interaction.
B) Secondary radiation is always more harmful than primary radiation.
C) Primary radiation comes from radioactive materials only.
D) Secondary radiation does not affect human health.
What is the unit used to measure radiation exposure in air?
A) Sievert
1
,✔✔B) Roentgen
C) Becquerel
D) Curie
Which type of radiation is most likely to penetrate through the human body without being
absorbed?
✔✔A) Gamma rays
B) Alpha particles
C) Neutron radiation
D) Beta particles
How can radiation exposure to a patient be reduced during diagnostic imaging?
✔✔A) By using the lowest possible dose while achieving necessary results
B) By using high doses to ensure clear images
C) By limiting patient movement during the procedure
D) By reducing shielding to enhance image quality
What is the function of a lead apron in radiation protection?
2
, ✔✔A) To block and absorb scatter radiation
B) To enhance image resolution
C) To improve patient comfort during the procedure
D) To stabilize patients during imaging
What is the effect of using a higher kVp (kilovolt peak) in an X-ray machine?
✔✔A) It increases the energy of the X-rays, reducing patient exposure while maintaining image
quality
B) It decreases the image quality by increasing radiation scattering
C) It has no effect on radiation exposure or image quality
D) It increases patient exposure without changing the image quality
What does the ALARA principle stand for in radiation protection?
✔✔A) As Low As Reasonably Achievable
B) Always Look At Radiation Areas
C) Any Level of Radiation is Acceptable
D) Absolute Limits Are Required for All Radiation Exposure
3
Questions and Answers Latest Update
Graded A+
What is the main reason for using protective clothing in radiation environments?
✔✔A) To prevent radiation from reaching the body and causing harm
B) To make workers feel more comfortable
C) To maintain the temperature of the workplace
D) To improve the clarity of radiation images
What is the key difference between primary and secondary radiation?
✔✔A) Primary radiation is emitted directly from the source, while secondary radiation is
scattered or emitted after interaction.
B) Secondary radiation is always more harmful than primary radiation.
C) Primary radiation comes from radioactive materials only.
D) Secondary radiation does not affect human health.
What is the unit used to measure radiation exposure in air?
A) Sievert
1
,✔✔B) Roentgen
C) Becquerel
D) Curie
Which type of radiation is most likely to penetrate through the human body without being
absorbed?
✔✔A) Gamma rays
B) Alpha particles
C) Neutron radiation
D) Beta particles
How can radiation exposure to a patient be reduced during diagnostic imaging?
✔✔A) By using the lowest possible dose while achieving necessary results
B) By using high doses to ensure clear images
C) By limiting patient movement during the procedure
D) By reducing shielding to enhance image quality
What is the function of a lead apron in radiation protection?
2
, ✔✔A) To block and absorb scatter radiation
B) To enhance image resolution
C) To improve patient comfort during the procedure
D) To stabilize patients during imaging
What is the effect of using a higher kVp (kilovolt peak) in an X-ray machine?
✔✔A) It increases the energy of the X-rays, reducing patient exposure while maintaining image
quality
B) It decreases the image quality by increasing radiation scattering
C) It has no effect on radiation exposure or image quality
D) It increases patient exposure without changing the image quality
What does the ALARA principle stand for in radiation protection?
✔✔A) As Low As Reasonably Achievable
B) Always Look At Radiation Areas
C) Any Level of Radiation is Acceptable
D) Absolute Limits Are Required for All Radiation Exposure
3
