Radiation Protection Workbook Ch. 4
Questions and Answers Already Passed
How does increasing the distance from a radiation source help with safety?
✔✔A) It reduces the exposure based on the inverse square law
B) It increases the amount of radiation
C) It has no effect on safety
D) It increases the time workers can spend near the source
What is the most common protective material used to shield against beta radiation?
A) Lead
✔✔B) Plastic or glass
C) Concrete
D) Steel
What is the maximum allowable dose (dose limit) for radiation workers?
A) 100 rem per year
✔✔B) 5 rem per year
1
,C) 50 rem per year
D) 10 rem per year
Which of the following describes the correct order of priority for radiation protection?
✔✔A) Time, Distance, Shielding
B) Distance, Shielding, Time
C) Shielding, Time, Distance
D) Time, Shielding, Distance
Why is it important to monitor radiation exposure with a dosimeter?
✔✔A) To track the amount of radiation a worker has received
B) To determine the weight of the radiation source
C) To measure the temperature of radiation equipment
D) To measure the electrical resistance of radiation shields
What is the key difference between alpha and gamma radiation in terms of shielding
requirements?
A) Alpha radiation requires thick metal shields, while gamma radiation requires thin plastic
barriers
2
, ✔✔B) Alpha radiation can be stopped by paper, while gamma radiation requires dense materials
like lead
C) Both require the same type of shield
D) Gamma radiation can be blocked by clothing, while alpha radiation cannot be blocked at all
Which of the following should be done if a radioactive spill occurs?
A) Leave the area immediately and ignore the spill
B) Only inform the supervisor and wait for instructions
✔✔C) Follow established decontamination procedures and report the spill to the Radiation
Safety Officer
D) Leave the spill to dissipate naturally
What is the primary concern when working with radioactive materials in confined spaces?
A) The temperature inside the space
B) The amount of radiation escaping
✔✔C) Limited ventilation and the risk of inhalation of radioactive particles
D) The space’s size
3
Questions and Answers Already Passed
How does increasing the distance from a radiation source help with safety?
✔✔A) It reduces the exposure based on the inverse square law
B) It increases the amount of radiation
C) It has no effect on safety
D) It increases the time workers can spend near the source
What is the most common protective material used to shield against beta radiation?
A) Lead
✔✔B) Plastic or glass
C) Concrete
D) Steel
What is the maximum allowable dose (dose limit) for radiation workers?
A) 100 rem per year
✔✔B) 5 rem per year
1
,C) 50 rem per year
D) 10 rem per year
Which of the following describes the correct order of priority for radiation protection?
✔✔A) Time, Distance, Shielding
B) Distance, Shielding, Time
C) Shielding, Time, Distance
D) Time, Shielding, Distance
Why is it important to monitor radiation exposure with a dosimeter?
✔✔A) To track the amount of radiation a worker has received
B) To determine the weight of the radiation source
C) To measure the temperature of radiation equipment
D) To measure the electrical resistance of radiation shields
What is the key difference between alpha and gamma radiation in terms of shielding
requirements?
A) Alpha radiation requires thick metal shields, while gamma radiation requires thin plastic
barriers
2
, ✔✔B) Alpha radiation can be stopped by paper, while gamma radiation requires dense materials
like lead
C) Both require the same type of shield
D) Gamma radiation can be blocked by clothing, while alpha radiation cannot be blocked at all
Which of the following should be done if a radioactive spill occurs?
A) Leave the area immediately and ignore the spill
B) Only inform the supervisor and wait for instructions
✔✔C) Follow established decontamination procedures and report the spill to the Radiation
Safety Officer
D) Leave the spill to dissipate naturally
What is the primary concern when working with radioactive materials in confined spaces?
A) The temperature inside the space
B) The amount of radiation escaping
✔✔C) Limited ventilation and the risk of inhalation of radioactive particles
D) The space’s size
3
