GEOL 101 Final, Spring 2000

American University of Beirut Geology 101 Sections 1, 2 and 3 Final Exam June 9", 2000 Student’s name: Part I Choose the best answer (4 pts each, total 40 pts): 1. The volume of water flowing past a given point in a specified length of time is a: a) discharge b) load c) drainage basin d) gradient 2. The depth at which water motion is negligible is: a) wave refraction b) stage c) wave base d) crest 3. Unusually high tides during a storm are called: a) a berm b) a surge c) a barrier island d) a beach 4. The factors that contro! flood severity are: a) infiltration b) vegetation c) topography d) all of the above e) none of the above 5. Arapid mass movement is a) a landslide b) a gravity ce) a greenhouse effect d) a sea level rise 6. The angle of repose is: a) low for coarse irregular particles b) low for fine and round particles c) independent of particle size and shape 7. A rotational movement of the soil mass always occurs in: a) a mass movement b) a landslide c) a slide d) a slump 8. A fifty-year flood has a chance to be exceeded in any one year of: a) 20 percent b) 2 percent c) 50 percent d) 5 percent 9. The current sea level is: a) rising at about 1/3m per century b) declining at about 1/3m per century c) rising at about 30m per century d) declining at about 30m per century 10. The time lag between a precipitation event and the peak flood discharge is: a) the peak lag time b) the peak discharge c) overtopping Part Il. Answer only 6of the following 9 questions (10 pts each, total 60 pts): 1. Review longshore currents and their effect on sand (with a graph including groins- jetties) Discuss the recognition of coastal hazards Review the possible preventive measures for mass movements (with graphs) Draw and label a figure representing the hydrologic cycle Draw and label a figure representing the flood plain evolution Review the soil classification . Review the residence time of an element or compound in a certain reservoir (with formula) 8. Review the soil profile. Draw and label a figure representing a generalized soil profile (with a code and a label for each horizon) 9. Review the following three hazards related to volcanoes: pyroclastics, lahars and pyroclastic flows Notes: A penalty exists if you answer more than 6 questions in Part II. Answer Part I on the questionnaire and Part II on the Examination book.