Silt. Silt is granular material of a size somewhere between sand and clay whose mineral origin is quartz and feldspar. Silt may occur as a soil or as suspended sediment in a surface water body. It may also exist as soil deposited at the bottom of a water body.
In North America, a grade-separated junction may be referred to as a grade separation or as an interchange â in contrast with an intersection, at-grade, a diamond crossing or a level crossing, which are not grade-separated. 1 Effects.
- This quiz is intended to help you prepare for the types of questions you will be asked on the written test. The questions on the actual test may vary. A red and white triangular sign at an intersection means. Slow down if an emergency vehicle is approaching. Look both ways as you cross the intersection.