GXMO Exam Questions and Answers
Latest Version Already Passed
What is the primary purpose of radiographic collimation?
✔✔A) To reduce scatter radiation
B) To increase patient exposure
C) To enhance image contrast
D) To measure X-ray intensity
What is the function of an X-ray grid?
A) To magnify the image
✔✔B) To absorb scatter radiation
C) To increase patient dose
D) To protect the X-ray tube
Which unit measures radiation dose?
A) Hertz (Hz)
✔✔B) Sievert (Sv)
C) Coulomb (C)
1
,D) Pascal (Pa)
What is the most common imaging position for a chest X-ray?
A) Lateral
✔✔B) Posteroanterior (PA)
C) Anteroposterior (AP)
D) Supine
What is the primary purpose of lead shielding in radiology?
A) To protect the X-ray tube
✔✔B) To protect patients from scatter radiation
C) To increase the intensity of the X-ray beam
D) To enhance image sharpness
What does the term “ALARA” stand for in radiology?
✔✔A) As Low As Reasonably Achievable
B) All Levels Are Radiographically Approved
C) Adjust Levels According to Radiation Allowance
2
,D) Accurate Limits And Radiographic Assessment
What is the significance of the kVp setting on an X-ray machine?
A) It adjusts the size of the focal spot
✔✔B) It determines the penetrating power of the X-ray beam
C) It controls the number of electrons produced
D) It sets the exposure time
What material is commonly used for X-ray tube targets?
✔✔A) Tungsten
B) Aluminum
C) Copper
D) Lead
Which of the following increases magnification in radiography?
A) Using a grid
✔✔B) Decreasing the source-to-object distance
C) Increasing the source-to-image distance
3
, D) Increasing the collimation field size
What is the purpose of a fluoroscopy exam?
A) To capture static images
✔✔B) To visualize moving structures in real time
C) To enhance bone detail
D) To measure radiation exposure
Which of these tissues absorbs the most radiation?
A) Fat
✔✔B) Bone
C) Air
D) Muscle
What is the function of mA (milliamperes) in X-ray production?
✔✔A) It controls the number of X-ray photons produced
B) It adjusts the beam’s energy
C) It measures exposure time
4
Latest Version Already Passed
What is the primary purpose of radiographic collimation?
✔✔A) To reduce scatter radiation
B) To increase patient exposure
C) To enhance image contrast
D) To measure X-ray intensity
What is the function of an X-ray grid?
A) To magnify the image
✔✔B) To absorb scatter radiation
C) To increase patient dose
D) To protect the X-ray tube
Which unit measures radiation dose?
A) Hertz (Hz)
✔✔B) Sievert (Sv)
C) Coulomb (C)
1
,D) Pascal (Pa)
What is the most common imaging position for a chest X-ray?
A) Lateral
✔✔B) Posteroanterior (PA)
C) Anteroposterior (AP)
D) Supine
What is the primary purpose of lead shielding in radiology?
A) To protect the X-ray tube
✔✔B) To protect patients from scatter radiation
C) To increase the intensity of the X-ray beam
D) To enhance image sharpness
What does the term “ALARA” stand for in radiology?
✔✔A) As Low As Reasonably Achievable
B) All Levels Are Radiographically Approved
C) Adjust Levels According to Radiation Allowance
2
,D) Accurate Limits And Radiographic Assessment
What is the significance of the kVp setting on an X-ray machine?
A) It adjusts the size of the focal spot
✔✔B) It determines the penetrating power of the X-ray beam
C) It controls the number of electrons produced
D) It sets the exposure time
What material is commonly used for X-ray tube targets?
✔✔A) Tungsten
B) Aluminum
C) Copper
D) Lead
Which of the following increases magnification in radiography?
A) Using a grid
✔✔B) Decreasing the source-to-object distance
C) Increasing the source-to-image distance
3
, D) Increasing the collimation field size
What is the purpose of a fluoroscopy exam?
A) To capture static images
✔✔B) To visualize moving structures in real time
C) To enhance bone detail
D) To measure radiation exposure
Which of these tissues absorbs the most radiation?
A) Fat
✔✔B) Bone
C) Air
D) Muscle
What is the function of mA (milliamperes) in X-ray production?
✔✔A) It controls the number of X-ray photons produced
B) It adjusts the beam’s energy
C) It measures exposure time
4
