RHS EXAM,PRACTICE EXAM AND STUDY
GUIDE LATEST 2024 ACTUAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS(DETAILED ANSWERS)WITH
RATIONALES|AGRADE
Which of the following protection techniques is used to
minimize x-radiation exposure to the operator?
A. Structural shielding
B. Wearing a lead line apron
C. Wearing a dosimeter
D. Standing next to the tubehead - ANSWER-A. Structural
shielding
When changing the 8-inch PID to a 16-inch PID, which of the
following is used to determine the intensity of the beam?
A. Rule of isometry
B. Inverse square law
C. Exposure chart
D. SLOB rule - ANSWER-B. Inverse square law
,Before exposing radiographs on a minor, the dental assistant
should
A. obtain consent from parent or legal guardian.
B. explain radiographs are mandatory for all patients.
C. explain radiographs are required by insurance.
D. obtain consent from the patient. - ANSWER-A. obtain
consent from parent or legal guardian.
Which of the following helps to decrease exposure of the
thyroid gland from the primary radiation beam?
A. Bisecting angle technique
B. Use of round collimation
C. Paralleling technique
D. Decreasing the x-ray focal plane - ANSWER-C. Paralleling
technique
The maximum permissible dose (MPD) of ionizing radiation
for occupational exposure is
A. 5.0 rem per year.
B. 0.05 rem per year.
C. 0.5 rem per year.
D. 1.0 rem per year. - ANSWER-A. 5.0 rem per year.
,Which of the following pathogens is NOT found in oral or
respiratory secretions?
A. Mycobacterium tuberculosis
B. Hepatitis B virus
C. Flu virus
D. West Nile virus - ANSWER-D. West Nile virus
The most common reason for taking bitewing radiographs is
to evaluate
A. occlusal caries.
B. incipient caries.
C. calculus.
D. interproximal caries. - ANSWER-D. interproximal caries.
How often should protective clothing be changed in an oral
healthcare setting?
A. Twice daily
B. After each patient
C. Once weekly
D. When visibly soiled - ANSWER-D. When visibly soiled
Using the ALARA concept as a guideline for radiographs
includes all of the following EXCEPT
, A. draping the patient with a thyroid collar.
B. using a circular PID.
C. draping the patient with a lead apron.
D. using a rectangular PID. - ANSWER-B. using a circular PID.
Which of the following errors occur when the vertical
angulation is incorrect?
A. Cone cut
B. Blurred image
C. Elongation
D. Overlapping - ANSWER-C. Elongation
Which of the following was established to address the
education and certification of operators of radiographic
equipment?
A. Radiation Control for Health and Safety
B. National Council on Radiation Protection and
Measurements
C. Consumer-Patient Radiation Health and Safety Act
D. International Commission on Radiation Units and
Measurements - ANSWER-C. Consumer-Patient Radiation
Health and Safety Act
GUIDE LATEST 2024 ACTUAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS(DETAILED ANSWERS)WITH
RATIONALES|AGRADE
Which of the following protection techniques is used to
minimize x-radiation exposure to the operator?
A. Structural shielding
B. Wearing a lead line apron
C. Wearing a dosimeter
D. Standing next to the tubehead - ANSWER-A. Structural
shielding
When changing the 8-inch PID to a 16-inch PID, which of the
following is used to determine the intensity of the beam?
A. Rule of isometry
B. Inverse square law
C. Exposure chart
D. SLOB rule - ANSWER-B. Inverse square law
,Before exposing radiographs on a minor, the dental assistant
should
A. obtain consent from parent or legal guardian.
B. explain radiographs are mandatory for all patients.
C. explain radiographs are required by insurance.
D. obtain consent from the patient. - ANSWER-A. obtain
consent from parent or legal guardian.
Which of the following helps to decrease exposure of the
thyroid gland from the primary radiation beam?
A. Bisecting angle technique
B. Use of round collimation
C. Paralleling technique
D. Decreasing the x-ray focal plane - ANSWER-C. Paralleling
technique
The maximum permissible dose (MPD) of ionizing radiation
for occupational exposure is
A. 5.0 rem per year.
B. 0.05 rem per year.
C. 0.5 rem per year.
D. 1.0 rem per year. - ANSWER-A. 5.0 rem per year.
,Which of the following pathogens is NOT found in oral or
respiratory secretions?
A. Mycobacterium tuberculosis
B. Hepatitis B virus
C. Flu virus
D. West Nile virus - ANSWER-D. West Nile virus
The most common reason for taking bitewing radiographs is
to evaluate
A. occlusal caries.
B. incipient caries.
C. calculus.
D. interproximal caries. - ANSWER-D. interproximal caries.
How often should protective clothing be changed in an oral
healthcare setting?
A. Twice daily
B. After each patient
C. Once weekly
D. When visibly soiled - ANSWER-D. When visibly soiled
Using the ALARA concept as a guideline for radiographs
includes all of the following EXCEPT
, A. draping the patient with a thyroid collar.
B. using a circular PID.
C. draping the patient with a lead apron.
D. using a rectangular PID. - ANSWER-B. using a circular PID.
Which of the following errors occur when the vertical
angulation is incorrect?
A. Cone cut
B. Blurred image
C. Elongation
D. Overlapping - ANSWER-C. Elongation
Which of the following was established to address the
education and certification of operators of radiographic
equipment?
A. Radiation Control for Health and Safety
B. National Council on Radiation Protection and
Measurements
C. Consumer-Patient Radiation Health and Safety Act
D. International Commission on Radiation Units and
Measurements - ANSWER-C. Consumer-Patient Radiation
Health and Safety Act
