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Who Wants to be a Geotechnical Engineer?

Who Wants to be a Geotechnical Engineer?. $1,000,000 $800,000 $600,000 $400,000 $200,000 $100,000 $75,000 $50,000 $30,000 $20,000 $15,000 $10,000 $5,000 $3,000 $2,000 $1,000 $900 $800 $700 $600 $500 $400 $300 $200 $100. Rules.

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Who Wants to be a Geotechnical Engineer?

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  1. Who Wants to be a Geotechnical Engineer?

  2. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Rules There are three guaranteed levels at $1,000, $100,000 and $1,000,000. A wrong answer at any other level will take you down to the previously guaranteed level.

  3. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 One of the following can exceed 100%. • Porosity • Water content • Relative density • Degree of saturation

  4. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 One cubic metre of dry sands may weigh about • 1500 kg • 1.5 tonne • 16 kN • any of the above

  5. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 D10 is the greatest in • sands • gravels • silts • clays

  6. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Silts are • cohesive • coarse grained soils • plastic • none of the above

  7. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 At liquidity index of zero, the clay is • dry • at liquid limit • at plastic limit • none of the above

  8. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following terms is not used with sands? • D10 • relative density • well graded • activity

  9. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following symbols is not possible in AS1726? • GM • SP • CM • MH

  10. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following symbols is not possible in AS1726? • GW-GC • SP-SM • SW-SM • SP-GP

  11. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 In grain size distribution, what does D30 mean? • D30 is the % finer than 30 mm • D30 is the % coarser than 30 mm • 30% grains are smaller than D30 mm • 30% grains are larger than D30 mm

  12. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following is not true about Plastic limit? • always less than liquid limit • generally greater for clays than for silts • always less than plasticity index • always greater than shrinkage limit

  13. Congratulations! You have reached the guaranteed $1,000. Proceed to the next level.

  14. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Liquid limit and Plastic limit tests are carried on soil fraction passing • 0.425 mm sieve • 4.75 mm sieve • 0.300 mm sieve • 0.075 mm sieve

  15. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following is not true about fine grained soils? • Grains are smaller than 0.075 mm • Grains cannot be seen by naked eye • All fine grained soils are plastic • None of the above

  16. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following is not true about clays? • Clays are plastic • Grains are flaky or needle-like • Grains are electrically charged • None of the above

  17. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Granular soils are classified “loose” or “dense” based on • porosity • relative density • relative compaction • dry density

  18. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following is the least dominant atom in clay minerals? • aluminium • oxygen • silicon • magnesium

  19. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following clay mineral has the largest cation exchange capacity? • kaolinite • illite • chlorite • montmorillonite

  20. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which of the following is not true for clays and silts? • Both are fine grained soils • Both are predominantly silica • Both carry negative charge • Clays have greater specific surface

  21. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Granular soils are generally compacted by • kneading • static loads • vibratory loads • all of the the above

  22. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Clays are generally compacted by • vibratory rollers • sheepsfoot rollers • dynamic compaction • all of the the above

  23. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Dynamic compaction is not very effective on • Mangrove clays • Granular soils • Land fills • Karst terrain with sinkhole cavities

  24. Congratulations! You have reached the guaranteed $100,000. Proceed to the next level.

  25. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Compaction tests on fines grained soils are carried on soil fraction passing • 0.425 mm sieve • 4.75 mm sieve • 0.300 mm sieve • 0.075 mm sieve

  26. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 At optimum water content, which of the following is not true? • dry density is the maximum • permeability is the minimum • porosity is the minimum • strength is the maximum

  27. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Compacting a clay wet of optimum results in • more flocculated clay fabric • more strength • higher shrinkage • higher permeability

  28. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Capillary rise is the largest in • silts • sands • gravels • clays

  29. $1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100$1,000,000$800,000$600,000$400,000$200,000$100,000$75,000$50,000$30,000$20,000$15,000$10,000$5,000$3,000$2,000$1,000$900$800$700$600$500$400$300$200$100 Which one of the following is not a clay mineral? • Attapulgite • Vermiculite • Vegemite • Halloysite

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