RHS- Radiation Safety UPDATED
ACTUAL Questions and CORRECT
Answers
The main purpose of using a lead apron with a thyroid collar when exposing dental radiographs
is to protect the patient from
hazardous materials.
scatter radiation.
the primary beam.
infectious agents. - CORRECT ANSWER - scatter radiation.
Which of the following was established to address the education and certification of operators of
radiographic equipment?
Radiation Control for Health and Safety
National Council on Radiation Protection and Measurements
International Commission on Radiation Units and Measurements
Consumer-Patient Radiation Health and Safety Act - CORRECT ANSWER - Consumer-
Patient Radiation Health and Safety Act
Personnel radiation monitoring devices are worn to
record the occupational exposure received by the operator.
alert the patient when an exposure occurs.
record the background exposure received by the patient.
alert the operator when an exposure occurs. - CORRECT ANSWER - record the
occupational exposure received by the operator.
What is the name of the process for the harmful effects of radiation?
,ultraviolet rays
ionization
infrared rays
radiation - CORRECT ANSWER - ionization
The most common artificial radiation exposure comes from
the nuclear fuel cycle.
medical radiation.
consumer products.
atomic weapon fallout. - CORRECT ANSWER - medical radiation.
Which of the following can help to protect patients from excess radiation damage to tissues?
Round collimation
digital radiopgraphy
High kVp
Short cone paralleling - CORRECT ANSWER - High kVp
Which of the following would you adjust to produce wavelengths with the greatest penetrating
power?
Time
kVp
Distance
mA - CORRECT ANSWER - kVp
The diameter of the cone-shaped beam produced from a circular collimator is
1.50 inches.
1.75 inches.
, 2.5 inches.
2.75 inches. - CORRECT ANSWER - 2.75 inches.
Which of the following is a long term effect of radiation? - CORRECT ANSWER -
Genetic
The radiation that is formed by the interaction of x-rays with matter is
primary radiation.
scattered radiation.
secondary radiation.
Bremsstrahlung radiation. - CORRECT ANSWER - secondary radiation.
The purpose of the aluminum disc in the x-ray tubehead is to
prevent distortion on the radiograph.
filter out long wave x-rays from the primary beam.
prevent scatter radiation.
filter out short wave x-rays from the primary beam. - CORRECT ANSWER - filter out
long wave x-rays from the primary beam
The position-indicating device (PID) shape that most effectively reduces patient exposure to
radiation is
round.
rectangular.
conical.
oblong. - CORRECT ANSWER - rectangular
When exposing radiographs, what is the minimum distance the operator should stand from the
tube head?
2 feet
ACTUAL Questions and CORRECT
Answers
The main purpose of using a lead apron with a thyroid collar when exposing dental radiographs
is to protect the patient from
hazardous materials.
scatter radiation.
the primary beam.
infectious agents. - CORRECT ANSWER - scatter radiation.
Which of the following was established to address the education and certification of operators of
radiographic equipment?
Radiation Control for Health and Safety
National Council on Radiation Protection and Measurements
International Commission on Radiation Units and Measurements
Consumer-Patient Radiation Health and Safety Act - CORRECT ANSWER - Consumer-
Patient Radiation Health and Safety Act
Personnel radiation monitoring devices are worn to
record the occupational exposure received by the operator.
alert the patient when an exposure occurs.
record the background exposure received by the patient.
alert the operator when an exposure occurs. - CORRECT ANSWER - record the
occupational exposure received by the operator.
What is the name of the process for the harmful effects of radiation?
,ultraviolet rays
ionization
infrared rays
radiation - CORRECT ANSWER - ionization
The most common artificial radiation exposure comes from
the nuclear fuel cycle.
medical radiation.
consumer products.
atomic weapon fallout. - CORRECT ANSWER - medical radiation.
Which of the following can help to protect patients from excess radiation damage to tissues?
Round collimation
digital radiopgraphy
High kVp
Short cone paralleling - CORRECT ANSWER - High kVp
Which of the following would you adjust to produce wavelengths with the greatest penetrating
power?
Time
kVp
Distance
mA - CORRECT ANSWER - kVp
The diameter of the cone-shaped beam produced from a circular collimator is
1.50 inches.
1.75 inches.
, 2.5 inches.
2.75 inches. - CORRECT ANSWER - 2.75 inches.
Which of the following is a long term effect of radiation? - CORRECT ANSWER -
Genetic
The radiation that is formed by the interaction of x-rays with matter is
primary radiation.
scattered radiation.
secondary radiation.
Bremsstrahlung radiation. - CORRECT ANSWER - secondary radiation.
The purpose of the aluminum disc in the x-ray tubehead is to
prevent distortion on the radiograph.
filter out long wave x-rays from the primary beam.
prevent scatter radiation.
filter out short wave x-rays from the primary beam. - CORRECT ANSWER - filter out
long wave x-rays from the primary beam
The position-indicating device (PID) shape that most effectively reduces patient exposure to
radiation is
round.
rectangular.
conical.
oblong. - CORRECT ANSWER - rectangular
When exposing radiographs, what is the minimum distance the operator should stand from the
tube head?
2 feet
