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  • Question

  • The compound of Portland cement which reacts immediately with water and also sets first is


  • Options
  • A. Tri-calcium silicate
  • B. Di-calcium silicate
  • C. Tri-calcium aluminate
  • D. Tetra calcium alumino ferrite.

  • Correct Answer
  • Tri-calcium aluminate 

    • More questions

    • 1. If ? is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
      • Discuss
    • 2. In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 3. If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is

    • Options
    • A. 1°43' 08"
    • B. 1°43' 18"
    • C. 1°43' 28"
    • D. 1°43' 38"
      • Discuss
    • 4. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. In long and short wall method of estimation, the length of long wall is the centre to centre distance between the walls and

    • Options
    • A. breadth of the wall
    • B. half breadth of wall on each side
    • C. one fourth breadth of wall on each side
    • D. None of these.
      • Discuss
    • 6. As compared to uniaxial tension or compression, the strain energy stored in bending is only

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is

    • Options
    • A. 5 kg/cm2
    • B. 10 kg/cm2
    • C. 15 kg/cm2
    • D. 20 kg/cm2
    • E. 25 kg/cm2
      • Discuss
    • 8. The weight of vehicles affects

    • Options
    • A. pavement thickness
    • B. ruling gradient
    • C. limiting gradient
    • D. design of bridges
    • E. all the above.
      • Discuss
    • 9. The average mean velocity of a stream having depth h, may be obtained by taking the average of the readings of a current meter at a depth of

    • Options
    • A. 0.1 h and 0.9 h
    • B. 0.2 h and 0.8 h
    • C. 0.3 h and 0.7 h
    • D. 0.4 h and 0.6 h.
      • Discuss
    • 10. Maximum number of passenger cars that can pass a given point on a road during one hour under the most ideal road way and traffic conditions, is known as

    • Options
    • A. traffic density
    • B. basic capacity of traffic lane
    • C. possible capacity of traffic lane
    • D. all the above.
      • Discuss

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