For maximum vertical stress, the shear stress is _________ if the load iskN and r=4m.
a) 0.4356 kN/m2
b) 0.1359 kN/m2
c) 0.1518 kN/m2
d) 0.3625 kN/m2
Q.2.
What will be the intensity of shear stress at a depth ofand at a radial distance offrom concentrated load ofkN?
a) 0.4356 kN/m2
b) 0.244 kN/m2
c) 0.652 kN/m2
d) 0.128 kN/m2
Q.3.
If r/z ratio is 2 and load ofkN is acting at a point, then the vertical pressure at a depthis ____________
a) 0.4356 kN/m2
b) 0.244 kN/m2
c) 0.1518 kN/m2
d) 4.72*10-3 kN/m2
Q.4.
The Boussinesq influence factor for r/z ratio equal to 1 is given by ____________
a) 0.3840
b) 0.5465
c) 0.0844
d) 0.2312
Q.5.
When the maximum vertical stress is 0.kN/m2 at a radial distance offrom the point load is __________ kN.
a) 42.34
b) 10.56
c) 20.76
d) 30.65
Q.6.
If θ is the apex angle which the line joining the apex makes with the outer edge of the loading of a circular area, then the Boussinesq’s vertical pressure σz under a uniformly loaded circular area is given by ______________
a) σz=q[1-sin3θ]
b) σz=q[1-cos3θ]
c) σz=q[1-tan3θ]
d) σz=q[1-cos2θ]
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