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Home Civil Engineering RCC Structures Design Comments

  • Question
  • Cantilever retaining walls can safely be used for a height not more than


  • Options
  • A. 3 m
  • B. 4 m
  • C. 5 m
  • D. 6 m
  • E. 8 m

  • Correct Answer
  • 6 m 


  • RCC Structures Design problems


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    • 1. If k is wobble correction factor, ? is coefficient of friction between the duct surface and the curve of tendon of radius R, the tension ratio at a distance x from either end, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
    • Discuss
    • 2. Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by

    • Options
    • A. Rankine formula
    • B. Marcus formula
    • C. Rankine Grashoff formula
    • D. Grashoff formula
    • E. Rankine-Marcus formula.
    • Discuss
    • 3. Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than

    • Options
    • A. 42 diameters from the centre of the column
    • B. 42 diameters from the inner edge of the column
    • C. 42 diameters from the outer edge of the column
    • D. 24 diameter from the centre of the column
    • Discuss
    • 4. For initial estimate for a beam design, the width is assumed

    • Options
    • A. 1/15th of span
    • B. 1/20th of span
    • C. 1/25th of span
    • D. 1/30th of span
    • E. 1/40th of span.
    • Discuss
    • 5. For M 150 mix concrete, according to I.S. specifications, local bond stress, is

    • Options
    • A. 5 kg/cm2
    • B. 10 kg/cm2
    • C. 15 kg/cm2
    • D. 20 kg/cm2
    • E. 25 kg/cm2
    • Discuss
    • 6. 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
    • 7. If the permissible compressive stress for a concrete in bending is C kg/m2, the modular ratio is

    • Options
    • A. 2800/C
    • B. 2300/2C
    • C. 2800/3C
    • D. 2800/C2
    • Discuss
    • 8. The design of a retaining wall assumes that the retained earth

    • Options
    • A. is dry
    • B. is free from moisture
    • C. is not cohesives
    • D. consists of granular particles
    • E. all the above.
    • Discuss
    • 9. For loss of head in a canal inverted syphon barrel, the factor in the Unwin formula is a coefficient for loss of head due to

    • Options
    • A. friction
    • B. exit
    • C. entry
    • D. gradient
    • Discuss
    • 10. The difference in level between the top of a bank and supply level in a canal, is called

    • Options
    • A. berm
    • B. free board
    • C. height of bank
    • D. none of these.
    • Discuss


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