A. 100 kg/cm2
B. 200 kg/cm2
C. 300 kg/cm2
D. 400 kg/cm2
Related Mcqs:
- The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called_________________?
A. Balanced section
B. Economic section
C. Critical section
D. All the above - If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is______________?
A. cAc + m cAsc
B. c(A – Asc) + m cAsc
C. c[A + (m – 1)ASC]
D. All the above - The maximum shear stress (q) in concrete of a reinforced cement concrete beam is_____________?
A. Shear force/(Lever arm × Width)
B. Lever arm/(Shear force × Width)
C. Width/(Lever arm × Shear force)
D. (Shear force × Width)/Lever arm - The minimum cube strength of concrete used for a pre-stressed member, is________________?
A. 50 kg/cm2
B. 150 kg/cm 2
C. 250 kg/cm2
D. 350 kg/cm2 - A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is___________________?
A. 30
B. 35
C. 40
D. 45 - The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm 2 respectively. If m = 15, the depth of its neutral axis is_______________?
A. 20 cm
B. 25 cm
C. 30 cm
D. 35 cm - is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?
A. f = (P/A) + (Z/M)
B. f = (A/P) + (M/Z)
C. f = (P/A) + (M/Z)
D. f = (P/A) + (M/6Z) - For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is___________________?
A. 1
B. 2
C. 3
D. 5 - Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension_______________?
A. Two times
B. Three times
C. Four times
D. Five times - According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is_____________?
A. 5 kg/cm2
B. 10 kg/cm 2
C. 15 kg/cm2
D. 20 kg/cm2
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