Basic X-Ray Machine operator Exam|
Questions and Answers Verified 100% Correct
What is the principal source of scatter radiation in radiography? - ✔✔Patient
1. Which of the following factors would you see on an exposure technique chart?
1. kVp
2. generator phase
3. part thickness in cm - ✔✔1 and 3
In determining the best level of kVp to use for a given body part, which of the following is used?
- ✔✔Optimum kVp
The use of 200 mA and 0.12 sec would result in __________ mAs. - ✔✔24
Practically, which mA station can be used for most small to average size patients who can
cooperate during the examination? - ✔✔200 mAs
Which of the following pathological conditions would require an increase in exposure
technique? - ✔✔Pleural effusion
Which of the following pathological conditions would require a decrease in exposure
technique? - ✔✔Pneumothorax
Which of the following grids would have a higher grid factor and therefore a high mAs? -
✔✔16:1 ratio
8. How much of a change in mAs is needed if there is a 2-cm increase in the part size? -
✔✔30%
,What is the SI unit of exposure which measures radiation in air? - ✔✔Rad (rad)
The SI unit for measuring absorbed dose is the: - ✔✔Gray (Gy-t)
Which of the following x-ray examinations would give the patient the highest bone marrow
dose? - ✔✔Abdomen
Patient doses in radiography as usually calculated as the: - ✔✔Absorbed dose (Gy-t)
Which of the following would be used to reduce the likelihood of genetic radiation effects? -
✔✔Gonad Shields
Radiation dosimeters should be worn: - ✔✔At the collar and anterior portion of the body
According to the NCRP (National Council on Radiation Protection), there is cause for concern if a
pregnant woman receives a dose in excess of ______ to the uterus. - ✔✔25 Gy-t
According to the Law of Bergonie and Tribondeau, which of the following groups would NOT be
as sensitive to radiation? - ✔✔Adults
The annual effective dose limit for an occupational radiation worker is: - ✔✔50 mSv
A gonad shield should be used whenever the edge of the radiation filed is within ________ cm
of the gonads. - ✔✔5
The greatest cause of unnecessary radiation to patients is from: - ✔✔Repeat exposures
, The definition of an organ is: - ✔✔A group of tissues that work together to perform
specialized and complex functions
The definition of pathology is: - ✔✔Study of abnormal conditions of the body
Which of the following are respiratory system structures?
1. thymus
2. trachea
3. bronchi - ✔✔2 and 3
The human skeletal system consists of _____ bones? - ✔✔206
What is a condyle? - ✔✔A rounded process that forms part of a joint
What term describes movement of a part away from the central axis of the body? -
✔✔Abduction
What term describes straightening of a joint? - ✔✔extension
What does supination mean? - ✔✔To turn the wrist so that the palm of the hand is up
Anatomic position is described by which of the following statements? - ✔✔Standing facing
the observer with palms of hands turned forward and toes facing anteriorly
What is the meaning of the term cephalic? - ✔✔Toward the head
What term refers to the back portion of the body or of a body part? - ✔✔Posterior
Questions and Answers Verified 100% Correct
What is the principal source of scatter radiation in radiography? - ✔✔Patient
1. Which of the following factors would you see on an exposure technique chart?
1. kVp
2. generator phase
3. part thickness in cm - ✔✔1 and 3
In determining the best level of kVp to use for a given body part, which of the following is used?
- ✔✔Optimum kVp
The use of 200 mA and 0.12 sec would result in __________ mAs. - ✔✔24
Practically, which mA station can be used for most small to average size patients who can
cooperate during the examination? - ✔✔200 mAs
Which of the following pathological conditions would require an increase in exposure
technique? - ✔✔Pleural effusion
Which of the following pathological conditions would require a decrease in exposure
technique? - ✔✔Pneumothorax
Which of the following grids would have a higher grid factor and therefore a high mAs? -
✔✔16:1 ratio
8. How much of a change in mAs is needed if there is a 2-cm increase in the part size? -
✔✔30%
,What is the SI unit of exposure which measures radiation in air? - ✔✔Rad (rad)
The SI unit for measuring absorbed dose is the: - ✔✔Gray (Gy-t)
Which of the following x-ray examinations would give the patient the highest bone marrow
dose? - ✔✔Abdomen
Patient doses in radiography as usually calculated as the: - ✔✔Absorbed dose (Gy-t)
Which of the following would be used to reduce the likelihood of genetic radiation effects? -
✔✔Gonad Shields
Radiation dosimeters should be worn: - ✔✔At the collar and anterior portion of the body
According to the NCRP (National Council on Radiation Protection), there is cause for concern if a
pregnant woman receives a dose in excess of ______ to the uterus. - ✔✔25 Gy-t
According to the Law of Bergonie and Tribondeau, which of the following groups would NOT be
as sensitive to radiation? - ✔✔Adults
The annual effective dose limit for an occupational radiation worker is: - ✔✔50 mSv
A gonad shield should be used whenever the edge of the radiation filed is within ________ cm
of the gonads. - ✔✔5
The greatest cause of unnecessary radiation to patients is from: - ✔✔Repeat exposures
, The definition of an organ is: - ✔✔A group of tissues that work together to perform
specialized and complex functions
The definition of pathology is: - ✔✔Study of abnormal conditions of the body
Which of the following are respiratory system structures?
1. thymus
2. trachea
3. bronchi - ✔✔2 and 3
The human skeletal system consists of _____ bones? - ✔✔206
What is a condyle? - ✔✔A rounded process that forms part of a joint
What term describes movement of a part away from the central axis of the body? -
✔✔Abduction
What term describes straightening of a joint? - ✔✔extension
What does supination mean? - ✔✔To turn the wrist so that the palm of the hand is up
Anatomic position is described by which of the following statements? - ✔✔Standing facing
the observer with palms of hands turned forward and toes facing anteriorly
What is the meaning of the term cephalic? - ✔✔Toward the head
What term refers to the back portion of the body or of a body part? - ✔✔Posterior
