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
Options
A. D = 0.00775 aP
B. D = 0.0775 aP
C. D = 0.07775 aP
D. D = 0.775 Pa
Correct Answer
D = 0.00775 aP
More questions
1. The minimum horizontal distance between two parallel main reinforcing bars, is
Options
A. the diameter of the bar if their diameters are same
B. the diameter of the longer bar if their diameters are unequal
C. 5 mm more than nominal maximum size of the coarse aggragate
Correct Answer: both longitudinal and cross sections are required
7. An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm ? placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is