Which combination of variables will result in a radiograph with the lowest spatial resolution?

If a radiograph is produced using a milliampere (mA) of 400 and 0.05 seconds, how should the exposure time be changed if the mA is decreased to 200?

An x-ray exposure at 50 inches results in a beam intensity of 200 µGy. Estimate the new intensity for a distance of 40 inches.

Which of the following sets of factors would be associated with a radiographic image possessing the greatest amount of focal spot blur?

If the original radiograph has good receptor exposure and the mAs is increased and the kVp is decreased according to the 15% rule, which of these statements is true?1) Receptor exposure increases2) Contrast increases3) Receptor exposure decreases4) Contrast decreases5) Receptor exposure stays the same6) Contrast stays the same

Which of the following projections of the skull would result in elongation of the anatomy being imaged?

Shape distortion includes which specific types of distortion?

If an x-ray beam has an intensity of 1.2 mGy at 60 inches, what is the intensity of the beam 40 inches?

Technical factors that are considered “geometric” include                           1. focal spot selection                           2. SID                           3. grid ratio                           4. filtration thickness                           5. OID                           6. tube angulation                           7. part thickness                           8. receptor resolution

Calculate the new  mA  required to maintain the same IR exposure produced with the original values.