ISRO Scientist or Engineer Civil 2015

0.552

0.444

0.712

0.583

Increases voids ratio and decreases permeability

Increases both voidsratio and permeability

Decreases both voids ratio and permeability

Decreases voids ratio and increases permeability

Effective stress with time

Effective stress with depth

Pore water pressure with depth

Pore water pressure with time

3 months

6 months

12 months

24 months

Zero

Less than 1

1

Greater than 1

A unit force is applied at co-ordinate j and displacements are calculated at all co-ordinates

A unit displacement is applied at co-ordinate j and the forces are calculated at all co-ordinates

A unit force is applied at co-ordinate j and the forces are calculated at all co-ordinates

A unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates

Stiffness

Flexibility

Influence coefficient

Unit strain

Darey’s formula

Slichter’s formula

Hazen’s formula

Lacey’s formula

Anon artesian aquifer

An artesian aquifer

A solid impermeable layer underlying or overlying an aquifer

A large underground water body

$$ \frac{Moment of inertia}{Radius of gyration}$$

$$\frac{Effective length}{Area of cross-section}$$

$$\frac{Effective length}{Radius of gyration}$$

$$\frac{Radius of gyration}{Area of cross-section}$$