CAAT 2 Infantry Knowledge Practice Test

Understanding how grazing fire distance compares to true grazing fire distance is the key. Grazing fire is the range at which rounds can be kept skimming the ground for planning a base of fire, using a standard terrain and gun height. True grazing fire is the actual distance on the terrain where the bullets will still skim the surface, accounting for the ground profile and aiming angle. Because terrain and line-of-fire conditions cause the bullet to contact the ground sooner than the idealized line, true grazing fire is typically shorter than the nominal grazing fire. In your data, the grazing fire distance is 600 meters, while the true grazing fire distance is 580 meters—so the true grazing fire distance is 20 meters shorter due to terrain factors. The other options either imply no difference or the reverse, which doesn’t fit how these two measurements relate.