1.
Rate the following radiations from most (1) to least (4) penetrating. Grab numbers and move to the correct order.
Alpha
Gamma (662 KeV)
Beta
X-Ray (110 KeV)
2.
The maximum range of an alpha particle in air is no more than:
3.
Which of the following radiations have a higher linear energy transfer?
4.
How may protons are there in the nucleus of 226/88 Ra?
5.
To post an area as a radiation area the dose rate must exceed:
6.
In selection of a radiation survey instrument which of the following items need to be considered:
7.
ALARA means that we should keep which of the following as low as reasonably achievable:
8.
The biological mechanism that is thought to produce long term somatic effects of ionizing radiation are thought to be caused by:
9.
The basic components of radiation safety are time, _______, and shielding.
10.
The maximum dose equivalent that non-radiation workers (general public) may be exposed to in your facility is in any one year is:
11.
The maximum radiation dose that may be delivered as part of a diagnostic x-ray examination is:
12.
The maximum dose equivalent that a declared pregnant worker may receive over the course of the pregnancy is:
13.
The average annual radiation dose due to background radiation in the United States is approximately:
14.
The maximum whole body dose equivalent a radiation worker may receive in a calendar year is:
15.
Match the quality factor with the type of radiation.
16.
The unit of radiation exposure, the Roentgen, is defined for which of the following radiations? Check all that apply.
17.
The principal long term somatic effect observed in populations exposed to significant doses of ionizing radiations is:
18.
Match the following radiations and typical shielding materials
Gamma
Beta
Neutrons
Alpha
X-Rays
Water
Plastic or Polyethylene
Paper
Heavy Lead or Concrete Shields
Thin Lead Shields
19.
Match the following terms and definitions
20.
Which of the following are required to produce x-rays? Choose all that apply.
21.
The maximum leakage limit for a sealed source is ________ microCurie
22.
What is the exposure rate from a 2 Ci Co-60 point source in R/hr?
Hint
23.
Which of the following can produce X-Rays? Choose all that apply
24.
Which of the following are ionizing radiations? Choose all ionizing sources.
25.
The Annual Limit of Intake (ALI) is:
26.
The Derived Air Concentration (DAC) is:
27.
Dose Assessment Consists of:
28.
NaI crystals in scintillometers have which of the following characteristics:
