TEST YOUR KNOWLEDGE Answers on Page 40
Robert G. Font, CPG-03953
rgfont@cs.com
1. Recent dramatic igneous activity from Kilauea Volcano in Hawaii makes us think about the relative power of various eruptions on a global scale. Based on the volcanic explosivity index (VEI) and volume of ejecta, which of the fol- lowing eruption types is most formidable and concerning?
a) Hawaiian b) Plinian c) Peléan
d) Strombolian
2. In our field work, we find a hill capped by a well-cemented conglomerate con- sisting of rounded pebbles. Which particle size diameter best describes the components of this lithologic unit?
a) 1/16 to 2 mm. b) 64 to 256 mm. c) 2 to 64 mm. d) Dude, I are nut a sidimintritry petritrigiligist! Motimurfic roks roole!
3. In our studies of sedimentology, we are concerned with determining the settling velocities of sedimentary particles in aqueous environments. Which of the following is useful to us regarding this matter?
a) Kepler’s Law. b) Gay-Lussac’s Law. c) Stoke’s Law. d) Murphy’s Law.
4. Which of the following pelecypods is not a representative of the Paleozoic Era? a) Inoceramus. b) Colpomya. c) Aviculopecten. d) Man! You best interpret my silence on this one!
5. Pertinent to stress-strain curves in rock and soil mechanics experiments, what defines the “ultimate strength?” a) The total ductility of the sample being tested. b) The peak strength of the stress-strain curve. c) The point at the knee of the stress train curve beyond which deformation is permanent. d) Stress and strain? Dude, by now I am totally stressed out thinking about these mind-straining questions!
38 TPG •
Jan.Feb.Mar 2019
www.aipg.org
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