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  • Question

  • The diameter of the column head support a flat slab, is generally kept


  • Options
  • A. 0.25 times the span length
  • B. 0.25 times the diameter of the column
  • C. 4.0 cm larger than the diameter of the column
  • D. 5.0 cm larger than the diameter of the column
  • E. none of these.

  • Correct Answer
  • 0.25 times the span length 

    • RCC Structures Design problems

    Search Results

    • 1. An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam

    • Options
    • A. is safe in shear
    • B. is safe with stirrups
    • C. is safe with stirrups and inclined bars
    • D. needs revision of section
      • Discuss
    • 2. The minimum head room over a stair must be

    • Options
    • A. 200 cm
    • B. 205 cm
    • C. 210 cm
    • D. 200 cm
    • E. 230 cm
      • Discuss
    • 3. Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
      • Discuss
    • 4. A pile weighing W1 kg penetrates S metres with its last blow. If W2 is the weight of the hammer having a drop of H metres, the pile can carry a maximum external load

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is

    • Options
    • A. 1400 kg/cm2
    • B. 190 kg/cm2
    • C. 260 kg/cm2
    • D. 230 kg/cm2
      • Discuss
    • 6. According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than

    • Options
    • A. 5 cm
    • B. 10 cm
    • C. 15 cm
    • D. 20 cm
    • E. 25 cm
      • Discuss
    • 7. If W is the uniformly distributed load on a circular slab of radius R fixed at its ends, the maximum positive radial moment at its centre, is

    • Options
    • A.
    • B.
    • C.
    • D. zero
    • E. none of these.
      • Discuss
    • 8. If p is the net upward pressure on a square footing of side b for a square column of side a, the maximum bending moment is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. If the tendon is placed at an eccentricity e below the centroidal axis of the lon-gitudial axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge

    • Options
    • A. is increased by
    • B. is increased by
    • C. is decreased by
    • D. remains unchanged.
      • Discuss
    • 10. The steel generally used in R.C.C. work, is

    • Options
    • A. stainless
    • B. mildsteel
    • C. high carbon steel
    • D. high tension steel.
      • Discuss

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