A. Two times
B. Three times
C. Four times
D. Five times
Related Mcqs:
- If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete footing from walls, is a cm, the depth D of footing is_______________?
A. D = 0.0775 a
B. D = 0.775 a
C. D = 0.775 a
D. D = 0.775 a2 - 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 - 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 - 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 - 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 modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.
A. m = 700/3C
B. m = 1400/3C
C. m = 2800/3C
D. m = 3500/3C - If the ratio of the span to the overall depth does not exceed 10, the stiffness of the beam will ordinarily be satisfactory in case of a__________________?
A. Simply supported beam
B. Continuous beam
C. Cantilever beam
D. None of these - The pitch of the main bars in a simply supported slab, should not exceed its effective depth by_____________?
A. Three times
B. Four times
C. Five times
D. Six times - In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are________________?
A. 6 legged
B. 8 legged
C. 10 legged
D. 12 legged
