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- 1. Multiple Choice
ALARA concept define as
As Low As Reasonably Accepted
As Low As Reasonably Achieveable
As Low As Radiation Available
- 2. Multiple Choice
Name 3 Principle of Radiation Protection that minimise radiation exposure
Shielding, Time and Distant
Shielding, Detector, PPE
Calibration, Detector, PPE
- 3. Multiple Choice
The Roentgen (R) exposure is measured in:
Tissue
Water
Lab
Air
- 4. Multiple Choice
Which unit describes how radioactive a radiation source is?
Gray, Gy
Sievert, Sv
Becquerel, Bq
Rad
- 5. Multiple Choice
The annual dose limit for the whole body of an adult (over 18) at work is:
20 mSv
1 Sv
50 mSv
20 Sv
- 6. Multiple Choice
You can reduce your exposure to radiation by doing the following:
Increasing your distance from the source
Decreasing the amount of time near the source
Provide shielding between yourself and the source
None of the above
- 7. Multiple Choice
Gamma radiation can be shielded with:
Paper
Your skin
Aluminum
Lead
Paper
Skin
Aluminium
Lead
- 8. Multiple Choice
What is the effective dose limit for a non-nuclear energy worker?
3 miliseiverts per year
1 milisievert per year
20 miliseiverts per year
None of the above
- 9. Multiple Choice
The annual dose limit for the whole body of an adult (over 18) at work is:
20 mSv
1 Sv
50 mSv
20 Sv
- 10. Multiple Choice
To protect yourself from the internal radiation exposure, you should:
NOT eat and drink in the lab
NOT store empty cups/containers/utensils in the lab or near radioactive materials
NOT store food and/or drink in the lab
All of the above
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