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IRRSP Practice Test with Complete Solutions 100% Pass

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IRRSP Practice Test with Complete Solutions 100% Pass 1. The activity of a radioactive source 2. Reddening of the skin, loss of hair, blistering 3. Higher gamma ray energy from the Co-60 The term "Curie" defines: a. The exposure of a radioactive source b. The intensity of a radioactive ...

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  • September 9, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • IRRSP
  • IRRSP
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MERCYTRISHIA
IRRSP Practice Test with Complete Solutions 100% Pass
1. The activity of The term "Curie" defines:
a radioactive a. The exposure of a radioactive source
source b. The intensity of a radioactive source
c. The activity of a radioactive source
d. The output of a radioactive source

2. Reddening of the Which of the following are symptoms of an acute extremity
skin, loss of hair, overexposure?
blistering a. Nausea, vomiting, diarrhea
b. Fatigue, nausea, reddening of the skin
c. Diarrhea, blistering, loss of hair
d. Reddening of the skin, loss of hair, blistering

3. Higher gamma The reason the gamma radiation emitted from a Cobalt-60
ray energy from source is more penetrating than the gamma radiation emit-
the Co-60 ted from Iridium-192 is due to the:
a. Higher output per Curie from the Co-60
b. Longer half life of the Co-60
c. Greater intensity from the Co-60
d. Higher gamma ray energy from the Co-60

4. 3/4 A 0.400 inch piece of lead shielding will reduce the radia-
tion intensity from an Iridium-192 source by:
a. 3/4
b. 1/2
c. 1/4
d. 1/8

5. Thick section of When shielding against high-energy gamma rays, which
high atomic num- of the following characteristics provide the most effective
ber material shield?
a. Thick section of material
b. Thick section of high atomic number material
c. Thick section of low atomic number material
d. Thick section of low density material

6. 2.31 R/hr The radiation intensity at 1 foot from an Iridium-192 source
is 452.4 R/hr. What is the radiation intensity at 14 feet?
a. 2.31 R/hr



, IRRSP Practice Test with Complete Solutions 100% Pass
b. 226.2 R/hr
c. 113.1 R/hr
d. 32.3 R/hr
7. C Gamma radiation can be defined as:
(Answer with A, B, C, or D)
a. Particles having the mass and charge of two protons
and two neutrons emitted from the nucleus of an unstable
atom
b. Very light negatively charged particles emitted from the
nucleus of an unstable atom
c. Very short wavelength electromagnetic radiation emit-
ted from the nucleus of an unstable atom
d. Particles emitted from an unstable atom with an energy
in the range of 1 to 10 M.E.V.
8. Attenuation The term that describes how gamma or x-rays are reduced
in intensity when passing through shielding material is:
a. Penetration
b. Scatter
c. Reflection
d. Attenuation

9. 5 Rem to the The annual radiation exposure limits for a radiographer or
whole body, 50 an assistant can be summarized by:
Rem to the ex- a. 1.25 Rem to the whole body, 18.75 Rem to the extrem-
tremities ities
b. 20 Rem to the whole body, 200 Rem to the extremities
c. 5 mRem to the whole body, 50 mRem to the extremities
d. 5 Rem to the whole body, 50 Rem to the extremities

10. 3.125 Curies A 50 Curie Cobalt-60 source has decayed 4 half lives.
What is the remaining activity?
a. 6.25 Curies
b. 3.125 Curies
c. 0.195 Curies
d. 1.56 Curies

11. Inverse Square The radiation intensity from a point source is inversely
Law proportional to the square of the distance from the source.

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