‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is
A). f = (P/'+ (Z/M)
B). f = (A/P) + (M/Z)
C). f = (P/A) + (M/Z)
D). f = (P/A) + (M/6Z)
The spacing of transverse reinforcement of column is decided by the following consideration.
A). The least lateral dimension of the column
B). Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
C). Forty-eight times the diameter of transverse reinforcement
D). All the above
The advantage of reinforced concrete, is due to
A). Monolithic character
B). Fire-resisting and durability
C). Economy because of less maintenance cost
D). All the above
The steel generally used in R.C.C. work, is
A). Stainless
B). Mild steel
C). High carbon steel
D). High tension steel
In a singly reinforced beam, the effective depth is measured from its compression edge to
A). Tensile edge
B). Tensile reinforcement
C). Neutral axis of the beam
D). Longitudinal central axis