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DANB-Radiation Safety-Operator Questions and
Answers Latest Update 100% Pass
3 rems - (answer)According to the OSHA Ionizing Radiation Standard, the
maximum whole body dose per calendar quarter (3 months) is
A. 18 rems.
B. 7 rems.
C. 3 rems
D. 20 rems
Dermatitis - (answer)Which of the following is an example of an acute health
effect of ionizing radiation exposure?
A. Leukemia
B. Skin cancer
C. Dermatitis
D. Genetic defects
discontinue use of the machine until a technician examines it. - (answer)If an X-
ray machine is suspected to be malfunctioning, the dental assistant should
A. continue to use the machine until a technician examines it.
B. discontinue use of the machine until a technician examines it.
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C. take some test films on a coworker to troubleshoot the problem.
D. make an adjustment to the settings so the X-rays are diagnostic.
Time is directly proportional to exposure.
(The length of time the dental assistant is exposed to radiation is directly
proportional to the dose that will be received. The longer the exposure, the
higher the dose. ) - (answer)Which statement is TRUE of radiation exposure?
A. Time is not related to exposure.
B. Time is inversely proportional to exposure.
C. Time is inversely proportional to the square of the exposure.
D. Time is directly proportional to exposure.
6 feet from the X-ray unit.
(To avoid scatter or leakage radiation, the operator must be at least 6 feet away
from the X-ray source. ) - (answer)Unless the dental assistant is behind a barrier,
the assistant must never stand closer than
A. 5 feet from the X-ray unit.
B. 6 feet from the X-ray unit.
C. 4 feet from the X-ray unit.
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D. 7 feet from the X-ray unit.
secondary radiation.
(When the primary beam strikes the patient, the patient's body tissues may
release secondary radiation, which is generated and emitted by the patient. ) -
(answer)When the dental assistant is exposing radiographs on a patient, the
patient may be a source of
A. non-ionizing radiation.
B. leakage radiation.
C. secondary radiation.
D. primary radiation.
The dental assistant routinely held film with his/her finger during exposures. -
(answer)Which of the following is considered a chronic exposure for the dental
assistant?
A. The dental assistant routinely held film with his/her finger during exposures.
B. The dental assistant followed ALARA concept routinely during radiographs.
C. The dental assistant routinely used E speed film for intraoral radiographs.
D. The X-ray machine had a faulty seal for a week before it was detected.
DANB-Radiation Safety-Operator Questions and
Answers Latest Update 100% Pass
3 rems - (answer)According to the OSHA Ionizing Radiation Standard, the
maximum whole body dose per calendar quarter (3 months) is
A. 18 rems.
B. 7 rems.
C. 3 rems
D. 20 rems
Dermatitis - (answer)Which of the following is an example of an acute health
effect of ionizing radiation exposure?
A. Leukemia
B. Skin cancer
C. Dermatitis
D. Genetic defects
discontinue use of the machine until a technician examines it. - (answer)If an X-
ray machine is suspected to be malfunctioning, the dental assistant should
A. continue to use the machine until a technician examines it.
B. discontinue use of the machine until a technician examines it.
, 2
C. take some test films on a coworker to troubleshoot the problem.
D. make an adjustment to the settings so the X-rays are diagnostic.
Time is directly proportional to exposure.
(The length of time the dental assistant is exposed to radiation is directly
proportional to the dose that will be received. The longer the exposure, the
higher the dose. ) - (answer)Which statement is TRUE of radiation exposure?
A. Time is not related to exposure.
B. Time is inversely proportional to exposure.
C. Time is inversely proportional to the square of the exposure.
D. Time is directly proportional to exposure.
6 feet from the X-ray unit.
(To avoid scatter or leakage radiation, the operator must be at least 6 feet away
from the X-ray source. ) - (answer)Unless the dental assistant is behind a barrier,
the assistant must never stand closer than
A. 5 feet from the X-ray unit.
B. 6 feet from the X-ray unit.
C. 4 feet from the X-ray unit.
, 3
D. 7 feet from the X-ray unit.
secondary radiation.
(When the primary beam strikes the patient, the patient's body tissues may
release secondary radiation, which is generated and emitted by the patient. ) -
(answer)When the dental assistant is exposing radiographs on a patient, the
patient may be a source of
A. non-ionizing radiation.
B. leakage radiation.
C. secondary radiation.
D. primary radiation.
The dental assistant routinely held film with his/her finger during exposures. -
(answer)Which of the following is considered a chronic exposure for the dental
assistant?
A. The dental assistant routinely held film with his/her finger during exposures.
B. The dental assistant followed ALARA concept routinely during radiographs.
C. The dental assistant routinely used E speed film for intraoral radiographs.
D. The X-ray machine had a faulty seal for a week before it was detected.
