#### Structural Design Specifications

1

If b is actual width of a flange, Dt is the thickness of the flange, b_omega is the breath of the web, lo is the distance between the points of zero moments in a beam, the effective width of the flange, is

A. (l_0)/((l_0//b) + 2) + b_omega
B. (l_0)/((l_0//b) + 3) +2 b_omega
C. (l_0)/((l_0//b) + 4) + b_omega
D. (0.5l_0)/((l_0//b) + 4) + b_omega

2
A solid slab spanning in two directions at right angles and carrying a uniformly distributed load, is supported on beams. If the length of two such beams A and B perpendicular to each other are x and y (x<y), the load shared by the beam A, is
A. 1/2 xy
B. 1/3 xy
C. 1/4 x^2
D. 1/4 y^2

3

Bending moment values for filler joists

A. near middle of end span is +(omega L^2)/(10)
B. at support next to end support is -(omega L^2)/(10)
C. at middle of interior spans is +(omega L^2)/(12)
D. at other interior supports is - (omega L^2)/(12)
E. all the above.

4

In compression members, the lap length of a bar should not be less tha

A. 12 phi
B. 16 phi
C. 20 phi
D. 24 phi
E. 30 phi

5

The value of fbct in the formula    t = sqrt((3W)/(f_(bct))  (A^2 - B_2/4))  for calculating the thickness of a Rectangular base, according to IS : 800-1982, is

A. 1500 kg/cm^2
B. 1650 kg/cm^2
C. 1800kg/cm^2
D. 1890 kg/cm^2