(1) Concrete Technology Quiz
Use 25 minutes to answer 50 questions on concrete technology. Click on START QUIZ below to get started. Click on FINISH when you conclude your quiz.
#1. Which of the following is not a primary ingredient used in production of concrete?
#2. 60 to 75% of concrete is made up of?
#3. Which of the following is not an advantage of reducing water content in concrete?
#4. The ease of placing, consolidating, and finishing freshly mixed concrete is called?
#5. Bleeding in concrete is not caused by one of the following?
#6. The chemical reaction between cement and water is called?
#7. If hardened concrete is saturated again after a drying period, strength will increase
#8. 7 days compressive strength of concrete is often estimated to be _____ of the 28 days strength
#9. Which of the following affects the compressive strength of concrete?
#10. Compressive strength of concrete can be used as an index of the flexural strength, direct tensile strength, and spliting tensile strength
#11. The capability of concrete to hold back water without visible leakage is called?
#12. Additional deformation in concrete due to sustained stress is called?
#13. When permitted to dry completely, concrete will?
#14. Which of the following will not affect the amount of shrinkage in concrete?
#15. Which of the following can be used to control cracking in concrete?
#16. The process by which carbon dioxide from the air penetrates concrete and reacts with hydroxides is called?
#17. One of the following is not a method of protecting steel from corrosion?
#18. Water that has not reacted with cement paste in a cementitious mixture is known as?
#19. For complete hydration of portland cement, about ____ of water is needed
#20. The overall particle size distribution of cement is called?
#21. The ability of a hardened cement paste to retain its volume is known as?
#22. The time that elapses from the moment water is added to cement until the paste ceases to be fluid and plastic is called?
#23. The average particle density of portland cement is usually taken as?
#24. Which test is used to measure the consistency of concrete?
#25. The process of measuring concrete mix ingredients by either mass or volume and introducing them into the mixer is called?
#26. The minimum mixing time (using concrete mixer) usually required to each cubic metre of concrete is?
#27. The tendency for coarse aggregate to separate from sand-cement mortar is called?
#28. Which of the following is not a method of curing concrete?
#29. The recommended maximum water/cement ratio for water retaining structures is?
#30. Choose the odd one out
#31. The volume of fresh concrete produced from known quantities of component materials is known as the?
#32. Which of the following is not true about concrete?
#33. According to ASTM standard, which of the following is regarded as a general use cement?
#34. Which chemical component of cement plays the biggest role in high heat of hydration?
#35. For a material to qualify as a pozzolan, the alumina and silica oxides combined should be up to?
#36. Vicat needle is popularly used for testing?
#37. Excessive impurities in mixing water of concrete can cause the following except?
#38. The bulk unit weight of coarse aggregates used in the production of normal weight aggregate is expected to range from?
#39. In concrete production, aggregates passing 5 mm sieve (3/16") and retained on No 200 sieve is regarded as?
#40. The moisture states of aggregates in which during mixing they will neither absorb any of the mixing water added nor contribute any of their contained water to the mix is called?.
#41. Which of the following properties of coarse aggregate is not required for mix design?
#42. Shape of aggregate cannot influence strength of concrete
#43. Water reducing admixtures are popularly called?
#44. Prolonged mixing of concrete can lead to the following except?
#45. Concrete should be placed in ______?
#46. At any degree of hydration, the porosity of any cement paste depends on?
#47. Lean concrete is considered to be?
#48. At a constant water/cement ratio, lean concrete mix will lead to?
#49. The interface between aggregate and cement paste is called?
#50. The coefficient of expansion of concrete is largely influenced by?
Use 40 minutes to answer 50 questions on theory of structures. Click HERE to get started. Click on FINISH when you conclude your quiz.