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.Management Sciences
Category: RCC Structures Design
If the depth of actual neutral axis of a doubly reinforced beam______________?
A. Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
B. Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier
C. Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously
D. All the above
The minimum number of main steel bars provided in R.C.C________________?
A. Rectangular columns is 4
B. Circular columns is 6
C. Octagonal columns is 8
D. All the above
If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by
A. (5/6) (r/1 + r²) M
B. (5/6) (r²/1 + r²) M
C. (5/6) (r²/1 + r3) M
D. (5/6) (r²/1 + r4) M
Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by_________________?
A. Rankine formula
B. Marcus formula
C. Rankine Grashoff formula
D. Grashoff formula
An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus_______________?
A. Triangular load of the wall
B. UDL of wall
C. UDL of wall + load from the roof
D. Triangular load + load from the roof
Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as__________________?
A. 1/8th of the span
B. 1/10th of the span
C. 1/12th of the span
D. 1/16th of the span
Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam_______________?
A. Are curtailed if not required to resist the bending moment
B. Are bent up at suitable places to serve as shear reinforcement
C. Are bent down at suitable places to serve as shear reinforcement
D. Are maintained at bottom to provide at least local bond stress
If is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is________________?
A. 0.3 H
B. 0.4 H
C. 0.5 H
D. 0.7 H
If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by________________?
A. D = 0.00775 aP
B. D = 0.0775 aP
C. D = 0.07775 aP
D. D = 0.775 Pa
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