Newmark's Influence Chart Method

Q. In a Newmark's influence chart for stress distribution, there are 10 concentric circles and 50 radial lines. The influence factor of the chart is

1. 0.0002
2. 0.002
3. 0.02
4. 0.2

Q. Consider the following statements:
1. Westergaard's theory of stress distribution is more appropriate for soil deposits which exhibit large lateral strain.
2. Newmark's influence chart can be used for the determination of vertical stress under any shape of a loaded area.
Which of these statements is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2

Q. Newmark's influence chart can be used to determine due to uniformly loaded area of any shape below any point.

1. vertical stress
2. Horizontal stress
3. Shear stress
4. All of above

Q. Standard Newmark's influence chart is shown in the given figure. If loaded equally the areas marked 1 and 2 will yield pressures at the centre such that

1. 1 yield more than 2
2. 2 yield more than 1
3. 1 and 2 yield the same
4. 1 yield exactly half of that of 2

Q. In a Newmark's chart for stress distribution, there are 10 concentric circles and 20 radial lines. The influence factor for the chart would be

1. 0.1
2. 0.05
3. 0.01
4. 0.005

Q. A part of the Newmark's influence chart with four concentric circles is shown in the figure below. If the hatched areas 1 and 2 are loaded separately with the same intensity of loading, then the intensity of pressure yielded

1. by 1 will be more than that yielded by 2
2. by 2 will be more than that yielded by 1
3. by 1 and 2 will be equal
4. at the centre will be inversely proportional to the radii of the two circles

Q. Standard Newmark's influence chart is shown in the given figure. If loaded equally the areas marked 1 and 2 will yield pressures at the centre such that

1. 1 yield more than 2
2. 2 yield more than 1
3. 1 and 2 yield the same
4. 1 yield exactly half of that of 2