powdered dry milk - can I sub regular milk, not powdered?

Oftentimes when a recipe calls for a dried ingredeient as opposed to a wet one is that the ratio balance gets skewed with too many liquid ingredients. I might ask Google what 1 ounce of dried milk milk = in liquid. Direct substitutions are tricky and generally not advised. But when a cake is baked in a long flat vessel, as is usually the case with "sheet cakes," liquid batters fare better than in deeper vessels.