Concrete technology and design of concrete structures
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Concrete technology and design of concrete structures questions with answers

100 multiple-choice questions. Open any question for its answer and explanation.

  1. Prestress loss due to friction occurs
  2. The limits of percentage p of the longitudinal reinforce-ment in a column is given by
  3. The property of the ingredients to separate from each other while placing the concrete is called
  4. As compared to ordinary portland cement, use of pozzuolanic cement
  5. Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning?
  6. If nominal shear stress $${\tau _{\text{v}}}$$ exceeds the design shear strength of concrete $${\tau _{\text{c}}}$$, the nominal shear reinforcement as per IS : 456-1978 shall be provided for carrying a shear stress equal to
  7. Due to circumferential action of the spiral in a spirally reinforced column
  8. The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is
  9. Finer grinding of cement
  10. For a reinforced concrete section, the shape of shear stress diagram is
  11. In prestressed concrete
  12. Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to
  13. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)
  14. Examine the following statements : i) Factor of safety for steel should be based on its yield stress, ii) Factor of safety for steel should be based on its ultimate stress, iii) Factor of safety for concrete should be based on its yield stress, iv) Factor of safety for concrete should be based on its ultimate stress. The correct statements are
  15. Strength of concrete increases with
  16. In counterfort retaining walls, the main reinforcement in the stem at support is
  17. Assertion A: The load factor for live load is greater than that for dead load. Reason R: The live loads are more uncertain than dead loads. Select your answer based on the coding system given below
  18. Diagonal tension in a beam
  19. According to IS : 456-1978, the fiexural strength of concrete is
  20. The factor of safety for
  21. The design yield stress of steel according to IS: 456-1978 is (where fy is the characteristic yield strength of steel)
  22. Which of the following statements is incorrect?
  23. The approximate value of the ratio between direct tensile strength and flexural strength is
  24. Workability of concrete is directly proportional to
  25. The critical section for finding maximum bending moment for footing under masonry wall is located