Top 250+ Solved RCC Structures Design MCQ Questions Answer

From 1 to 15 of 218

Q. 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, thebeam

a. Is safe in shear

b. Is safe with stirrups

c. Is safe with stirrups and inclined bars

d. Needsrevision of section

  • d. Needsrevision of section

Q. According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is

a. Half of the width of the slab

b. Two-third of the width of the slab

c. Three-fourth of the width of the slab

d. Four-fifth of the width of the slab

  • c. Three-fourth of the width of the slab

Q. The load stress of a section can be reduced by

a. Decreasing the lever arm

b. Increasing the total perimeter of bars

c. Replacing larger bars by greater number of smallbars

d. Replacing smaller bars by greater number of greater bars

  • c. Replacing larger bars by greater number of smallbars

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

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

  • a. 0.25 times the span length

Q. Lapped splices in tensile reinforcement are generally not used for bars of size larger than

a. 18 mmdiameter

b. 24 mmdiameter

c. 30 mmdiameter

d. 36 mmdiameter

  • d. 36 mmdiameter

Q. Minimum spacing between horizontal parallel reinforcement of the same size should not be less than

a. Onediameter

b. 2.5diameters

c. 3 diameters

d. 3.5 diameters

  • a. Onediameter

Q. A very comfortable type of stairs is

a. Straight

b. Dog legged

c. Geometrical

d. Open newel

  • d. Open newel

Q. Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension

a. Two times

b. Three times

c. Four times

d. Five times

  • c. Four times

Q. The width of the flange of a L-beam, should be less than

a. One-sixth of the effective span

b. Breadth of therib + four times thickness of the slab

c. Breadth of the rib + half clear distance betweenribs

d. Least of theabove

  • d. Least of theabove

Q. A pre-stressed concrete member is preferred because

a. Its dimensions are not decided from the diagonal tensile stress

b. Large size of long beams carrying large shear force need not be adopted

c. Removal of cracks in the members due toshrinkage

d. All the above

  • d. All the above
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