NAME

Question types


Start with


Question limit

of 18 available terms
(2 exact duplicates found)

Print test

18 True/False questions

  1. During wet weather or times when snow is melting, sometimes the downhill toe of a slump ________.It will decrease as the slope angle is lessened.

          

  2. What caused the lahars (mudflows) in 1985 on the Nevado del Ruiz volcano?To protect the pipeline against damage due to thawing ground and to keep the crude oil hot and fluid.

          

  3. How do freezing, thawing, wetting, and drying contribute to soil creep?The soil expands and contracts, lifting particles and dropping them a slight distance downslope.

          

  4. Which statement best describes slumping, a mass wasting process?all of the above

          

  5. Why was the Alaskan pipeline built above ground and insulated?To protect the pipeline against damage due to thawing ground and to keep the crude oil hot and fluid.

          

  6. Which one of the following operates primarily in areas of permafrost?solifluction

          

  7. Which mass wasting process has the slowest rate of movement?creep

          

  8. All of the following are possible indicators that creep is occurring except for ________.an extremely thick soil profile

          

  9. As an erosional process, how is mass wasting unique from wind, water, and ice?Mass wasting does not require a transporting medium.

          

  10. Which of the following is the factor affecting mass wasting?all of the above

          

  11. Consider a steep highway cut made by removing slightly weathered to fresh, fractured, granite bedrock. Which of the following situations is most stable against rockslides?It will decrease as the slope angle is lessened.

          

  12. ________ involves movement on a zone of compressed air and would most likely be triggered by an earthquake.Scarp

          

  13. A geologist wants to locate a horizontal coal bed on a soil-covered slope where soil creep is active. A distinctive sandstone bed underlies the coal bed. On the basis of weathered sandstone fragments in the soil, where is the coal bed?just above the highest piece of sandstone seen in the soil.

          

  14. How do the strength and cohesion of clay-rich regolith or soil change with the addition of water?It will decrease as the slope angle is lessened.

          

  15. Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?Water lowers the strength and cohesion.

          

  16. ________ denotes the exposed, crescent-shaped rupture surface at the head of a slump.Scarp

          

  17. Which of the following was a major factor leading to the Gros Ventre, WY slide?Soils and shallow bedrock were very wet and locally saturated.

          

  18. The most rapid type of mass movement is a ________.rock avalanche