IRRSP PRACTICE TEST 2024/2025 WITH GUARANTEED ACCURATE ANSWERS
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Course
IRRSP
Institution
IRRSP
The activity of a radioactive source - ACCURATE ANSWERThe term "Curie" defines:
a. The exposure of a radioactive source
b. The intensity of a radioactive source
c. The activity of a radioactive source
d. The output of a radioactive source
Reddening of the skin, loss of hair, blistering - ACC...
IRRSP PRACTICE TEST 2024/2025
WITH GUARANTEED ACCURATE
ANSWERS
The activity of a radioactive source - ACCURATE ANSWER✅✅The term
"Curie" defines:
a. The exposure of a radioactive source
b. The intensity of a radioactive source
c. The activity of a radioactive source
d. The output of a radioactive source
Reddening of the skin, loss of hair, blistering - ACCURATE
ANSWER✅✅Which of the following are symptoms of an acute extremity
overexposure?
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
Higher gamma ray energy from the Co-60 - ACCURATE ANSWER✅✅The
reason the gamma radiation emitted from a Cobalt-60 source is more penetrating
than the gamma radiation emitted 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
,3/4 - ACCURATE ANSWER✅✅A 0.400 inch piece of lead shielding will reduce
the radiation intensity from an Iridium-192 source by:
a. 3/4
b. 1/2
c. 1/4
d. 1/8
Thick section of high atomic number material - ACCURATE
ANSWER✅✅When shielding against high-energy gamma rays, which of the
following characteristics provide the most effective 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
2.31 R/hr - ACCURATE ANSWER✅✅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
b. 226.2 R/hr
c. 113.1 R/hr
d. 32.3 R/hr
C - ACCURATE ANSWER✅✅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 emitted 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.
Attenuation - ACCURATE ANSWER✅✅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
5 Rem to the whole body, 50 Rem to the extremities - ACCURATE
ANSWER✅✅The annual radiation exposure limits for a radiographer or an
assistant can be summarized by:
a. 1.25 Rem to the whole body, 18.75 Rem to the extremities
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
3.125 Curies - ACCURATE ANSWER✅✅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
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