Prepare for the Radiology Test with our interactive quiz. Utilize flashcards and multiple choice questions, each question includes hints and explanations. Optimize your study process and boost your confidence for the exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


What does the grain size/crystals on a film do to the speed?

  1. The fastest films have the smallest grains

  2. The fastest films have the largest grains

  3. The fastest films have medium-sized grains

  4. The grain size does not affect speed

The correct answer is: The fastest films have the largest grains

The grain size/crystals on a film directly affect its speed. The larger the grains, the faster the film will be. So Option B is the correct answer. Option A is incorrect because the size of the grains and the speed are inversely related. Option C is also incorrect because the term "medium-sized" is ambiguous and does not give a definitive answer about the relationship between grain size and speed. Option D is incorrect because, as previously mentioned, grain size does play a role in the speed of a film.