RSTI- Phase 1 Question and answers
100% correct 2025/2026
X-Rays Discovered by and date - correct answer ✔Wilhelm Konrad Roentgen 1895, epic yr 1896
X-rays - correct answer ✔Electromagnetic Energy, that has a high freq/short wave
quantity - correct answer ✔relates to the number of x-ray photons that make-up the beam
quality - correct answer ✔refers to the penetrating ability of the beam
penetration - correct answer ✔the ability of the x-ray beam to pass through matter unimpeded
absorption - correct answer ✔the x-ray photon is absorbed by tissue and does not pass through the
body
scatter - correct answer ✔the phenomenon by which interactions in the body produce secondary
radiation which moves in a diff direction that the original beam
Doubling the Time Causes - correct answer ✔Double Rad, Absorp, Scatter
Doubling the ma Causes - correct answer ✔Double Rad, Absorp, Scatter
Doubling kV - correct answer ✔more than 2x Rad, less than 2x absorption, more than 2x scatter
Production of X-rays - correct answer ✔Control, High Voltage Transformer, X-ray tube, Focal Spot
, Formation of the X-ray - correct answer ✔Filtration, Collimator, Patient, Grid
Image receptor and Image processing - correct answer ✔Image Receptor (CR or DR)
The Radiographic System - correct answer ✔Production of X-Rays, Formation of X-Rays, Image receptor
and image processing
Density - correct answer ✔The amount of Blackness of an image, in the area of interest
Contrast - correct answer ✔The difference between adjacent densities
Sharpness - correct answer ✔The abruptness of change between adjacent objects
Factors Affecting Rad Quality- KiloVoltage (KV) - correct answer ✔Increase Density, Decrease Contrast
Factors Affecting Rad Quality- Milliamperage (mA) - correct answer ✔Increase Density
Factors Affecting Rad Quality- Time (sec) - correct answer ✔Increase Density
Factors Affecting Rad Quality- Source to Image Distance (SID) - correct answer ✔Decrease Density,
Increases Sharpness, Decrease Magnification, Decrease distortion
Factors Affecting Rad Quality - correct answer ✔
Factors Affecting Rad Quality - correct answer ✔
100% correct 2025/2026
X-Rays Discovered by and date - correct answer ✔Wilhelm Konrad Roentgen 1895, epic yr 1896
X-rays - correct answer ✔Electromagnetic Energy, that has a high freq/short wave
quantity - correct answer ✔relates to the number of x-ray photons that make-up the beam
quality - correct answer ✔refers to the penetrating ability of the beam
penetration - correct answer ✔the ability of the x-ray beam to pass through matter unimpeded
absorption - correct answer ✔the x-ray photon is absorbed by tissue and does not pass through the
body
scatter - correct answer ✔the phenomenon by which interactions in the body produce secondary
radiation which moves in a diff direction that the original beam
Doubling the Time Causes - correct answer ✔Double Rad, Absorp, Scatter
Doubling the ma Causes - correct answer ✔Double Rad, Absorp, Scatter
Doubling kV - correct answer ✔more than 2x Rad, less than 2x absorption, more than 2x scatter
Production of X-rays - correct answer ✔Control, High Voltage Transformer, X-ray tube, Focal Spot
, Formation of the X-ray - correct answer ✔Filtration, Collimator, Patient, Grid
Image receptor and Image processing - correct answer ✔Image Receptor (CR or DR)
The Radiographic System - correct answer ✔Production of X-Rays, Formation of X-Rays, Image receptor
and image processing
Density - correct answer ✔The amount of Blackness of an image, in the area of interest
Contrast - correct answer ✔The difference between adjacent densities
Sharpness - correct answer ✔The abruptness of change between adjacent objects
Factors Affecting Rad Quality- KiloVoltage (KV) - correct answer ✔Increase Density, Decrease Contrast
Factors Affecting Rad Quality- Milliamperage (mA) - correct answer ✔Increase Density
Factors Affecting Rad Quality- Time (sec) - correct answer ✔Increase Density
Factors Affecting Rad Quality- Source to Image Distance (SID) - correct answer ✔Decrease Density,
Increases Sharpness, Decrease Magnification, Decrease distortion
Factors Affecting Rad Quality - correct answer ✔
Factors Affecting Rad Quality - correct answer ✔
