RADIATION SAFETY REVIEW AND
ESSENTIALS PROGRAM MOCK EXAM 2026
ACTUAL EXAM PRACTICE TEST GRADED
A+
Radiation exposure with results in cell death known as ______.
A. stochastic effect
B. radiation effect
C. deterministic effect
D. humanistic effect Correct Answer C. deterministic effect
During fluoroscopy procedures, the use of two dosimeters is
suggested and placed:
A. Inside the apron at waist level and outside the apron at neck
level.
B. Inside the apron at neck or eye level and outside the apron at
waist level.
C. Inside the apron at neck level and outside the apron at chest
level.
,D. Inside the apron at check level and outside the apron at neck
or eye level. Correct Answer D. inside the apron at chest level
and outside the apron at neck or eye level.
Records related to shielding must be maintained for inspection
and include:
A. Lead equivalent-thickness of shielding and machine
characteristics
B. Lead equivalent-thickness of shielding, machine characteristics
and measurements of radiation behind shielding materials.
C. Lead equivalent-thickness of shielding, machine
characteristics, and measurements of radiation behind and in
front of the shielding materials.
D. Machine characteristics and measurements of radiation behind
shielding materials. Correct Answer B. Lead equivalent-thickness
of shielding, machine characteristics and measurements of
radiation behind shielding materials.
The number of electrons released per unit of time by the cathode
is:
A. Directly proportional to the current passing through it.
B. Inversely proportional to the current passing through it by a
factor of 2.
,C. Inversely proportional to the current passing through it.
D. Proportional to the current passing through it by factor of 2.
Correct Answer A. Directly proportional to the current passing
through it.
Which of the following postings is required for areas or rooms
where radiation materials are used or stored?
A. 'Caution, Radiation Area'
B. 'Caution, High Radiation Area'
C. 'Caution, Radioactive Materials'
D. 'Caution, Danger' Correct Answer C. 'Caution, Radioactive
Materials'
Which of the following is described as controlled access area for
the protection of individuals from exposure to radiation and
radioactive materials?
A. Radiation area
B. Unrestricted area
C. High radiation area
D. Restricted area Correct Answer D. Restricted area
, If the radiation intensity from an I-131 therapy patient at 1 meter is
70 mR/hr, at approximately what distance should a visitor stand to
receive an exposure rate of no more than 2 mR/hr?
A. 2.2
B. 5.9
C. 17.5
D. 35 Correct Answer B. 5.9
The dose rate during preparation of a radiopharmaceutical is 1.66
mrem/hr. With this rate reduced by 3 HVLs, how many hours
would it take a worker to accumulate 10 mrems?
A. 6
B. 12
C. 24
D. 48 Correct Answer D. 48
Air Kerma at the reference point (Ka, r) or (Ka,r, Gy) is ______.
A. The time during a procedure that fluoroscopy is used.
B. The patient dose associated with deterministic skin effects.
ESSENTIALS PROGRAM MOCK EXAM 2026
ACTUAL EXAM PRACTICE TEST GRADED
A+
Radiation exposure with results in cell death known as ______.
A. stochastic effect
B. radiation effect
C. deterministic effect
D. humanistic effect Correct Answer C. deterministic effect
During fluoroscopy procedures, the use of two dosimeters is
suggested and placed:
A. Inside the apron at waist level and outside the apron at neck
level.
B. Inside the apron at neck or eye level and outside the apron at
waist level.
C. Inside the apron at neck level and outside the apron at chest
level.
,D. Inside the apron at check level and outside the apron at neck
or eye level. Correct Answer D. inside the apron at chest level
and outside the apron at neck or eye level.
Records related to shielding must be maintained for inspection
and include:
A. Lead equivalent-thickness of shielding and machine
characteristics
B. Lead equivalent-thickness of shielding, machine characteristics
and measurements of radiation behind shielding materials.
C. Lead equivalent-thickness of shielding, machine
characteristics, and measurements of radiation behind and in
front of the shielding materials.
D. Machine characteristics and measurements of radiation behind
shielding materials. Correct Answer B. Lead equivalent-thickness
of shielding, machine characteristics and measurements of
radiation behind shielding materials.
The number of electrons released per unit of time by the cathode
is:
A. Directly proportional to the current passing through it.
B. Inversely proportional to the current passing through it by a
factor of 2.
,C. Inversely proportional to the current passing through it.
D. Proportional to the current passing through it by factor of 2.
Correct Answer A. Directly proportional to the current passing
through it.
Which of the following postings is required for areas or rooms
where radiation materials are used or stored?
A. 'Caution, Radiation Area'
B. 'Caution, High Radiation Area'
C. 'Caution, Radioactive Materials'
D. 'Caution, Danger' Correct Answer C. 'Caution, Radioactive
Materials'
Which of the following is described as controlled access area for
the protection of individuals from exposure to radiation and
radioactive materials?
A. Radiation area
B. Unrestricted area
C. High radiation area
D. Restricted area Correct Answer D. Restricted area
, If the radiation intensity from an I-131 therapy patient at 1 meter is
70 mR/hr, at approximately what distance should a visitor stand to
receive an exposure rate of no more than 2 mR/hr?
A. 2.2
B. 5.9
C. 17.5
D. 35 Correct Answer B. 5.9
The dose rate during preparation of a radiopharmaceutical is 1.66
mrem/hr. With this rate reduced by 3 HVLs, how many hours
would it take a worker to accumulate 10 mrems?
A. 6
B. 12
C. 24
D. 48 Correct Answer D. 48
Air Kerma at the reference point (Ka, r) or (Ka,r, Gy) is ______.
A. The time during a procedure that fluoroscopy is used.
B. The patient dose associated with deterministic skin effects.
