Skip to main content

Soil origins


Image: Grabenstedt
Which of the following refers to a component of many soils formed near large mountains that is the result of ice moving over the ground, breaking rock into smaller pieces and moving material as the ice melts.

A. glacial till
B. loess
C. alluvium
D. colluvial

AnswerA. glacial till. Many soils are formed when material is transported by wind (loess), ice (glacial till) or gravity (colluvial).
ARE 4.0 exam prep: SPD

Comments

Try These Too!

Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred

Soil Analysis

In sieve analysis, one of the first results measured is the % retained in each sieve of the total sample (W sieve / W total x 100%). If the illustrated sample indicates equal amounts of various sizes of aggregate, where most of the voids in such material will be filled with particles, which gradation term is used? A. Narrow gradation B. Gap gradation C. Dense gradation D. Open gradation E. Rich gradation

Roof pitch

Which one of the following slopes in this illustration corresponds with an 8:12 pitch roof? A. 45° B. 36.87° C. 33.69° D. 26.57°