BXMO CHAPTER 2-3 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
What is the radiation that exits the patient and exposes the image receptor (IR)? - Answers Remnant
radiation
What is remnant radiation? - Answers The portion of the x-ray beam that exits the patient and
reaches the IR
What term describes radiation absorbed by matter? - Answers Attenuation
What causes attenuation? - Answers Absorption and scatter of x-ray photons within tissue
What is the invisible image in the IR before processing called? - Answers Latent image
When does a latent image become visible? - Answers After processing or digital image reconstruction
What is radiation that exits the patient in all directions called? - Answers Scatter radiation
Why is scatter radiation a problem? - Answers It reduces image quality and increases unwanted
exposure
What is the radiation that exits the x-ray tube called before interaction with the patient? - Answers
Primary radiation
What is primary radiation used for? - Answers It produces the radiographic image after passing
through the patient
What device controls the size of the x-ray beam? - Answers Collimator
Why is collimation important? - Answers It reduces patient dose and scatter radiation
What is the central ray in radiography? - Answers The center of the x-ray beam perpendicular to the
tube's long axis
What does the central ray determine? - Answers Beam alignment and positioning accuracy
What is 0.02 seconds in milliseconds? - Answers 20 milliseconds
How do you convert seconds to milliseconds? - Answers Multiply by 1000
What is the square root of 81? - Answers 9
What is a square root? - Answers A number that when multiplied by itself equals the original number
What is the square root of 16? - Answers 4
What is 4 squared? - Answers 16
What is 62 kVp increased by 30%? - Answers Approximately 81 kVp
What is the formula for percent increase? - Answers Original × (1 + decimal percent)
What is 7/8 as a decimal? - Answers 0.875
How do you convert a fraction to a decimal? - Answers Divide numerator by denominator
What is 230% as a decimal? - Answers 2.3
How do you convert percent to decimal? - Answers Divide by 100
What is the formula for mAs? - Answers mAs = mA × time (seconds)
What is 500 mA × 0.1 sec? - Answers 50 mAs
What happens to contrast when kVp increases? - Answers Contrast decreases
What happens to contrast when kVp decreases? - Answers Contrast increases
What happens to mAs when patient size increases? - Answers mAs increases
Why does mAs increase with patient size? - Answers More tissue requires more photons to reach the
IR
What is the relationship between SID and mAs? - Answers As SID increases, mAs increases
What law explains this relationship? - Answers Inverse square law
What is the radiation that exits the patient and exposes the image receptor (IR)? - Answers Remnant
radiation
What is remnant radiation? - Answers The portion of the x-ray beam that exits the patient and
reaches the IR
What term describes radiation absorbed by matter? - Answers Attenuation
What causes attenuation? - Answers Absorption and scatter of x-ray photons within tissue
What is the invisible image in the IR before processing called? - Answers Latent image
When does a latent image become visible? - Answers After processing or digital image reconstruction
What is radiation that exits the patient in all directions called? - Answers Scatter radiation
Why is scatter radiation a problem? - Answers It reduces image quality and increases unwanted
exposure
What is the radiation that exits the x-ray tube called before interaction with the patient? - Answers
Primary radiation
What is primary radiation used for? - Answers It produces the radiographic image after passing
through the patient
What device controls the size of the x-ray beam? - Answers Collimator
Why is collimation important? - Answers It reduces patient dose and scatter radiation
What is the central ray in radiography? - Answers The center of the x-ray beam perpendicular to the
tube's long axis
What does the central ray determine? - Answers Beam alignment and positioning accuracy
What is 0.02 seconds in milliseconds? - Answers 20 milliseconds
How do you convert seconds to milliseconds? - Answers Multiply by 1000
What is the square root of 81? - Answers 9
What is a square root? - Answers A number that when multiplied by itself equals the original number
What is the square root of 16? - Answers 4
What is 4 squared? - Answers 16
What is 62 kVp increased by 30%? - Answers Approximately 81 kVp
What is the formula for percent increase? - Answers Original × (1 + decimal percent)
What is 7/8 as a decimal? - Answers 0.875
How do you convert a fraction to a decimal? - Answers Divide numerator by denominator
What is 230% as a decimal? - Answers 2.3
How do you convert percent to decimal? - Answers Divide by 100
What is the formula for mAs? - Answers mAs = mA × time (seconds)
What is 500 mA × 0.1 sec? - Answers 50 mAs
What happens to contrast when kVp increases? - Answers Contrast decreases
What happens to contrast when kVp decreases? - Answers Contrast increases
What happens to mAs when patient size increases? - Answers mAs increases
Why does mAs increase with patient size? - Answers More tissue requires more photons to reach the
IR
What is the relationship between SID and mAs? - Answers As SID increases, mAs increases
What law explains this relationship? - Answers Inverse square law
