SM UNIT 3

Contact pressure is between __________

• base of footing and underlying soil mass

• wall and column

• slab and wall

• wall and beam

Contact pressure is the ratio of ___________

• area to normal load

• normal load to tangential load

• tangential load to normal load

• normal load to true contact area

Contact pressure can be called scratch hardness only in case of __________

• elastic contact

• semi-elastic contact

• plastic contact

• semi-plastic contact

The following diagram represents the contact pressure of __________

• real elastic material

• intermediate soil

• cohesionless soil

• gravel

The contact pressure of a footing was found to be 85 kN/m2 for a load of 212.5 kN. What will be the contact area?

• 1 m2

• 2.5 m2

• 3 m2

• 3.5 m2

If a footing has a dimension of 1m*1m and load transfer of 20 kN, then the contact pressure is _______________

• 20 kN/m2

• 30 kN/m2

• 50 kN/m2

• 70 kN/m2

Find the load at depth 10m for a uniformly loaded circular area of radius 1000m. k=1. The vertical pressure σz is 80 kN/m2.

• 51kN/m2

• 54 kN/m2

• 80 kN/m2

• 12kN/m2

Find the depth z for a uniformly loaded circular area of 80 kN/m2 load and radius of 50m. k=0.9160.

• 2m

• 4m

• 25m

• 50m

If the contact pressure is 14 kN/m2, then find the load for 50 m2.

• 500kN

• 600kN

• 700kN

• 800kN

If a UDL of 70 kN/m2 is acting at a rectangular area of 25 m2, then the contact pressure is _______

• 51kN/m2

• 54 kN/m2

• 80 kN/m2

• 70 kN/m2