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.Management Sciences
Category: RCC Structures Design
A very comfortable type of stairs is_______________?
A. Straight
B. Dog legged
C. Geometrical
D. Open newel
A pre-stressed concrete member__________________?
A. Is made of concrete
B. Is made of reinforced concrete
C. Is stressed after casting
D. Possesses internal stresses
The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?
A. Twice the diameter
B. Thrice the diameter
C. Four times the diameter
D. Seven times the diameter
The maximum diameter of a bar used in a ribbed slab, is______________?
A. 12 mm
B. 6 mm
C. 20 mm
D. 22 mm
An under-reinforced section means_________________?
A. Steel is provided at the underside only
B. Steel provided is insufficient
C. Steel provided on one face only
D. Steel will yield first
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
For a ribbed slab______________?
A. Clear spacing between ribs shall not be greater than 4.5 cm
B. Width of the rib shall not be less than 7.5 cm
C. Overall depth of the slab shall not exceed four times the breadth of the rib
D. All the above
The weight of reinforced concrete, is generally taken as______________?
A. 2200 kg/m3
B. 2300 kg/m3
C. 2400 kg/m3
D. 2500 kg/m3
A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is____________________?
A. bn (fc/2) (d – n/3)
B. Atft (d – n/3)
C. ½ n1 (1 – n1/3) cbd²
D. All the above
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