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LRA 222 FINAL EXAM REVIEW QUESTIONS AND VERIFED ANSWERS 2026-2027 NEWEST UPDATE
What causes the Moire' effect?
✓ using grid with similar frequency to CR , using grid cassette in bucky
what grid cut-off error happens using a parallel grid
✓ off level
what factors determine which grid to use
✓ patient exposure, level contrast, focal range
What is the air gap technique?
✓ reduce scatter radiation reaching IR
what technical factor should be increased to compensate for air gap technique
✓ SID
what does using a lead strip help with during a radiographic exam
✓ improve contrast
scatter radiation valuable in radigraphic imaging
✓ True
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