Comprehensive study material for ITI technical trades, including Fitter Electrician and others. Covers NIMI pattern theory, workshop practicals, safety standards, and industrial manufacturing processes.
Machine A machine is a tool that consists of one or more parts and uses energy to achieve a particular goal. A simple machine is a device that simply transforms the direction or magnitude of a force, but a large number of more complex machines exist. In general, a simple machine can be defined as … Read more
The devices used for holding together two parts of a machine or a structure are called fasteners. Fasteners are divided into two main categories: temporary fasteners and permanent fasteners. Temporary fasteners allow easy unfastening of the parts connected, without damaging the fastening elements, while with permanent fasteners, the parts when joined once cannot be separated … Read more
Industrial engineering is a representative of the production. It deals with the optimization of complex processes or systems. It is a branch of engineering that is concerned with the development, improvement, money, knowledge, information, equipment, energy, materials, analysis, and synthesis. For industrial engineers, some technical terms are used such as work-study, method study, time study, … Read more
In workshops and industries, different types of machines are being used to give the required output. By the movement of two mating parts of a machine, friction is produced due to which, some amount of heat is generated and it also affects the efficiency of the machine. So, a process called lubrication comes into action … Read more
Springs devices are compressible and expandable up to a certain limit and store mechanical energy because of their elasticity. In a vehicle suspension, when the wheel meets an obstacle, the springing allows movement of the wheel over the obstacle and thereafter returns the wheel to its normal position, all of these are done by the … Read more
All types of machines require power to reach working conditions and the elements, which are used to transfer these powers are known as elements of power transmission. These elements are also useful in transferring the rotatory motion generated by the machine (prime mover) to the different parts of a machine. In the workshops and industries, … Read more
Introduction Aluminum and its alloys are a crucial chapter for engineering students seeking an edge in workshops. In ITI Fitter trade theory, understanding aluminum and its alloys helps in manufacturing lightweight components, aerospace structures, and highly efficient workshop tools. Among all industrial materials, aluminum and its alloys possess excellent characteristics like high ductility and superior … Read more
A device, which is used for transmitting water, oil, steam, etc., from one place to another is called a pipe. The system of pipes and tube fitting is known as plumbing. It deals with the laying of pipelines for the transportation of the fluids. Plumbing is a system, that deals with pipes, drains fittings, valves, … Read more
Whenever a cutting operation is done on a job, it experiences different types of loads (forces) in different directions. These loads tend to move the job and cutting tool from its original position which results in a decrease in accuracy or dimensional defect of the prepared job. So, it is important that the job should … Read more
We know about the many engineering components that have the internal toughness to protect them from any impact. e.g., Gear, cam, shaft, etc. Case hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft. Thus, forming a thin layer of harder metal is called … Read more