Which of the following materials may be used as interspace material in a grid?

Increasing collimation results in which of the following?     1. a smaller field size     2. decreased scatter production     3. increased patient dose

Which of the following terms refers to an increase in the image size of an object compared with its true or actual size?     1. magnification     2. size distortion     3. foreshortening

Which of the following terms refers to the difference in the brightness levels on a radiographic image?

Which of the following statements is(are) TRUE regarding beam attenuation?     1. Increasing tissue thickness increases absorption.     2. Decreasing atomic number increases beam attenuation.     3. Increasing beam quality decreases transmission.

Decreasing collimation results in which of the following?

A radiograph was exposed using 75 kVp, 10 mAs, with a 8:1 grid. If the technologist repeated the exam using a 16:1 grid, what new mAs should be used to maintain image receptor exposure?

Which of the following terms refers to the accuracy of the anatomic structural lines recorded on the radiographic image?

A radiographic image with a large number of similar brightness levels that have small differences between them has which kind of contrast?  

What type of grid error results in significant underexposure to the lateral edges of the image receptor?