| A | B |
| The diameter of the cone at the lower rim is 5 inches and is 15 inches from the focal spot. What is the diameter of the field size at an SID of 36 inches? | 12 |
| . It is desired to cut an aperture that will limit the x-ray beam to a 10 inch coverage. The SID is 40 inches. The distance form the focal spot to the aperture diaphragm is 4 inches. What is the diameter of the aperture? | 1 |
| A 6-inch cone is used to project a field of 16 inches when using a SID of 40 inches. How far from the focal spot does the cone need to be placed? | 15 |
| What size cone should be used to project a field size of 16 inches when the cone is placed 15 inches form the focal spot and a SID of 60 inches is used? | 4 |
| You are using a 5-inch cone that is 15 inches from the focal spot. How much is the SID to project a filed of 10 inches? | 30 |
| What size field do you get when you are using a 3 inch cone at 40 inch SID and the cone is 4 inches from the focal spot? | 30 |
| What IS the distance from the focal spot you would place a 4 Inch cone at 60 Inches to produce a field of 8 inches? | 30 |
| How much distance is needed to produce a 10 inch field when using a cone that is 3 inches in diameter and is 10 inches from the focal spot? | 33 |
| The diameter of the cone at the lower rim is 4 inches and is 12 inches from the focal spot. What is the diameter of the field size at an SID of 30 inches? | 10 |
| How much distance is needed to produce a 15 inch field when using a cone that is 4 inches in diameter and 10 inches from the focal spot? | 37.5 |