Psychology: A Self-Teaching Guide
A complete course, from brain biology to abnormal psychology Hundreds of questions and many reviews tests Key concepts and terms defined and explained Master key concepts. Answer challenging questions. Prepare for exams. Learn at your own pace. What are the two basic psychological dimensions of emotions?
Arya Sunil
Three phase induction motor
An induction motor or 3 phase induction motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can, therefore, be made without electrical connections to the rotor.
DC Machines
A DC Machine is an electro-mechanical energy conversion device. There are two types of DC machines; one is DC generator, and another one is known as DC motor. A DC generator converts mechanical power (ωT) into DC electrical power (EI), whereas, a DC motor converts d.c electrical power into mechanical power.
BASIC ELECTRICAL MACHINES-PPT
In electrical engineering, the electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others
BASIC ELECTRICAL MACHINES
In electrical engineering, the electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others
REFRIGERATION
Refrigeration is the process of cooling space, substance or system to lower and/or maintain its temperature below the ambient one. In other words, refrigeration means artificial cooling. Heat is removed from a low-temperature reservoir and transferred to a high-temperature reservoir.
SOLDERING
Soldering is the process of joining two or more electronic parts together by melting solder around the connection. Solder is a metal alloy and when it cools it creates a strong electrical bond between the parts.
THERMAL ENERGY
Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of kinetic energy.
Metal Casting
In metalworking and jewellery making, casting is a process in which a liquid metal is somehow delivered into a mold that contains a hollow shape of the intended shape. The metal is poured into the mold through a hollow channel called a sprue. The metal and mold are then cooled, and the metal part is extracted
METAL JOINING PROCESSES
Metal Joining Processes: Welding, Riveting, Bolting, Brazing, Soldering. ... Welding is a process of permanently joining materials. Welding joins different metals/alloys with a number of processes, in which heat is supplied either electrically or by means of a torch.
METAL FORMING PROCESSES
Forming, metal forming, is the metalworking process of fashioning metal parts and objects through mechanical deformation; the workpiece is reshaped without adding or removing material, and its mass remains unchanged
IC ENGINES
An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit.