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.Management Sciences
Category: RCC Structures Design
The amount of reinforcement for main bars in a slab, is based upon___________________?
A. Minimum bending moment
B. Maximum bending moment
C. Maximum shear force
D. Minimum shear force
The breadth of a ribbed slab containing two bars must be between______________?
A. 6 cm to 7.5 cm
B. 8 cm to 10 cm
C. 10 cm to 12 cm
D. 12 cm to 15 cm
An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is__________________?
A. Safe in shear
B. Is safe with stirrups
C. Is safe with stirrups and inclined members
D. Needs revision of the section
Long and short spans of a two way slab are l and l and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. Accordingy to xRankine Grashoff theory___________________?
A. (wx/wy) = (ly/lx)
B. (wx/wy) = (ly/lx)²
C. (wx/wy) = (ly/lx)4
D. None of these
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 to shrinkage
D. All the above
Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to__________________?
A. Shear force
B. Area of the section
C. Distance of the C.G. of the area from its neutral axis
D. Moment of the beam section about its neutral axis
Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than________________?
A. One diameter of thinner bar
B. One diameter of thicker bar
C. Twice the diameter of thinner bar
D. None of these
A flat slab is supported_______________?
A. On beams
B. On columns
C. On beams and columns
D. On columns monolithically built with slab
The maximum permissible size of aggregates to be used in casting the ribs of a slab, is______________?
A. 5 mm
B. 7.5 mm
C. 10 mm
D. 15 mm
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