Test your basic knowledge |

Civil Engineering Materials

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Sum of cumul % retained / 100 - higher= bigger particle sizes= smaller amount of agg needed






2. High sulfate resistence -






3. Greater =less free water needed to get a given slump






4. max is 12 in - more free water= more slump






5. Near surface water is cause






6. Source of hotgases - biggest piece of moving equipment






7. Cement+water






8. Loss of water from paste (evap) - 1% vol lowers - cracking - prevent by water loss control -






9. Nonpotable/potable >90% - the acceptable






10. Low stability






11. Sometimes worse






12. Water beyond SSD condition






13. Moderate Sulfate Resistance- large piers






14. Tricalcium silicate (C3S) - dicdalcium silicate (C2S) - tricalcium aluminate (C3A) - tetracalcium aluminoferrite (C4AF)






15. Heat and pressure ex- marble - quaertzile






16. Delay initial set - for long hauls or unusual placement






17. Stratified structure - disintegrated exitisting rocks - inorganice remains of marine animals - ex- limestone






18. Bending moment - no shear in middle third






19. Low Heat of Hydration- for careful control of heat - dams






20. Intentional well distributed air - up durability - adds strength






21. Good stability






22. 94 lbs






23. Cement+sand






24. Space between layers in CSH - water in interparticle space held by hydrogen bonds






25. To increase stability of materials - reduce rutting






26. Calcareous (calcium) - argillaceous (aluminum) - iron oxide (iron) - gypsum (silicon)






27. Air bubbles for sapce for water to expand when freezes






28. Volcanic - hardening and crystal molten material ex- granite






29. Slow down rate of aluminate hydration -produces sulfate ions - flash set - false set in excess - higher rate of C-S-H (strength)






30. Freeze-thaw cycles - bad curing or too much water






31. Early stength at faster rate - for cold temps






32. Consolidation - strike off - depress agg - darby or bull float - (TIME) - edging - jointing - floating - (TIME) - texturing - curing






33. Distributes cement grains - cement becomes more mushy -






34. Normal- for general work






35. High Early Strength- fast track projects - we want low set time






36. misplaced joints - more specific- spalling- breaking away of edges






37. By vibrating - otherwise rock pockets occure -






38. Trim subgrade - moisten subgrade - compact (use vibratory roller) - do NOT deposit frozen subgrade or disturb it - uniform - NO water added in front of paver -






39. From chemicals or excessive drying






40. Ponding/immersion - spraying/fogging - wet coverings -impervious papers/plastic sheets - membrane forming - steam - insulating blankets/covers - electric/hot oil/ infrared -






41. Heavy traffic






42. Cement paste has bulk SG< cement particles






43. Trapped air - reduces strength - ups permeabiity






44. To improve workability for fresh concrete






45. Ups capilary voids - lowers strength






46. Flowable - nonsegregating






47. Ups set time






48. Cement+course aggregate






49. For continued hydration and strength gains - otherwise only 50% strength gained - ups durability and abrasion resistance - prevent shrinkage cracking -






50. Water used for hydration - water beyond SSD - min- .22-.25 - typical- .4-.5 (.44) - lower WC ratio = more strength -







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests