Engineering

Piers are single unit supports carrying heavy loads and transferring them to deep-seated layers of soil or rock.They are of three types.

A cofferdam is a temporary structure designed to keep water and soil out of the excavation in which a bridge pier or other structure is built.

“Caissons” means box. Such box can be prefabricated on shore and then floated to the desired site, and is allowed to seat on prepared base.

Seismic waves are the waves which are formed by sudden breaking of rock within the earth. There are two types of waves: Body and Surface waves.

The principle of under-reamed pile foundations is the anchoring of the superstructure at a depth where the volume changes of soil are negligible.

In Reaction turbine, Pressure energy is first converted into kinetic energy before supplied to runner. It works on impulse reaction principle.

The method of variation of parameters is the general method which we use to find out a particular solution of a differential equation by replacing the constants in the solution of the homogeneous differential equation by functions and evaluating these functions so that the original DE will be satisfied.

Mineralogy is the study of minerals. It deals with understanding their origin, physicochemical properties, magnetic and optical properties.

In Java, there are three types of enterprise beans.