X-ray Physics Practice Test Exam 2
Questions And Answers 2025 Update
The Film Base is made up of what material? -
correct answer ✅Polyester Plastic (Mylar)
What is the Film emulsion composition? -
correct answer ✅Silver Halide Crystals suspended in gelatin?
What is the purpose of using intensifying screens? -
correct answer ✅Limit patient exposure
Name 3 ways that you can reduce Compton scatter? -
correct answer ✅1. Bucky Grid
2. Collimation
3. Use optimum kV
When transitioning from a 200 speed to a 600 speed image system,
how would you alter your mAs? -
correct answer ✅multiple your old mAs by 1/3
When transitioning from a 1200 speed to a 200 speed imaging
system, how would you alter your mAs? -
correct answer ✅Multiply the original mAs by 6
,X-ray Physics Practice Test Exam 2
Questions And Answers 2025 Update
How does quantum mottle show on an x-ray? -
correct answer ✅Graininess
Quantum mottle is also referred to as image _______? -
correct answer ✅Noise
What speed imaging system will give you more quantum mottle? -
correct answer ✅Faster speed
Why will a faster speed give you quantum mottle on your image? -
correct answer ✅The faster the speed, the less x-rays are used to
produce the film, creating a non-uniform pattern
What speed imaging system should you use when taking extremity
exposures? -
correct answer ✅Slower speed = more detail (more x-rays) 100
speed
What is the minimum speed used when taking spinal images? -
correct answer ✅400 (to 600) speed
What speed imaging system increases exposure to the patient? -
correct answer ✅Slower speed (more x-rays)
, X-ray Physics Practice Test Exam 2
Questions And Answers 2025 Update
What speed imaging system is used in pediatrics? -
correct answer ✅Fast speed (1200)
What is film latitude? -
correct answer ✅Range of error; film ability to respond to a wide
range of useful density
Which is easier to use? Long latitude or High contrast? -
correct answer ✅Long latitude, but more error
How is film contrast related to film latitude? -
correct answer ✅Inversely (longer latitude, lower contrast)
What type of safe light is used for rare earth crystal films? -
correct answer ✅GBX (green,blue, xray)
Which direction should the writing on the safelight filter be facing?
-
correct answer ✅It should be facing so that the person installing
the light filter can read the label from left to right, and away from
the light bulb
Questions And Answers 2025 Update
The Film Base is made up of what material? -
correct answer ✅Polyester Plastic (Mylar)
What is the Film emulsion composition? -
correct answer ✅Silver Halide Crystals suspended in gelatin?
What is the purpose of using intensifying screens? -
correct answer ✅Limit patient exposure
Name 3 ways that you can reduce Compton scatter? -
correct answer ✅1. Bucky Grid
2. Collimation
3. Use optimum kV
When transitioning from a 200 speed to a 600 speed image system,
how would you alter your mAs? -
correct answer ✅multiple your old mAs by 1/3
When transitioning from a 1200 speed to a 200 speed imaging
system, how would you alter your mAs? -
correct answer ✅Multiply the original mAs by 6
,X-ray Physics Practice Test Exam 2
Questions And Answers 2025 Update
How does quantum mottle show on an x-ray? -
correct answer ✅Graininess
Quantum mottle is also referred to as image _______? -
correct answer ✅Noise
What speed imaging system will give you more quantum mottle? -
correct answer ✅Faster speed
Why will a faster speed give you quantum mottle on your image? -
correct answer ✅The faster the speed, the less x-rays are used to
produce the film, creating a non-uniform pattern
What speed imaging system should you use when taking extremity
exposures? -
correct answer ✅Slower speed = more detail (more x-rays) 100
speed
What is the minimum speed used when taking spinal images? -
correct answer ✅400 (to 600) speed
What speed imaging system increases exposure to the patient? -
correct answer ✅Slower speed (more x-rays)
, X-ray Physics Practice Test Exam 2
Questions And Answers 2025 Update
What speed imaging system is used in pediatrics? -
correct answer ✅Fast speed (1200)
What is film latitude? -
correct answer ✅Range of error; film ability to respond to a wide
range of useful density
Which is easier to use? Long latitude or High contrast? -
correct answer ✅Long latitude, but more error
How is film contrast related to film latitude? -
correct answer ✅Inversely (longer latitude, lower contrast)
What type of safe light is used for rare earth crystal films? -
correct answer ✅GBX (green,blue, xray)
Which direction should the writing on the safelight filter be facing?
-
correct answer ✅It should be facing so that the person installing
the light filter can read the label from left to right, and away from
the light bulb
