Mechanical Marks Study

Introduction The  Indian Factory Act, 1948, has been promulgated primarily to provide safety measures and to promote the health and welfare of the workers employed in factories. The object thus brings this Act, within the competence of the Central Legislature to enact. State Governments/Union Territory Administrations have been empowered under certain provisions of this Act, to make rules, to give effect to the objects and the scheme of the Act.Employer and employees are two parties across the table . Relationship between these two is very important for the survival of any organisation. Industrial act, initially called as labour legislation had a protective function dealing with the wages, working conditions, social interest etc. It thus gives legal framework to relationship between employer and employees. The progress of lagislation INDUSTRILIZATION STARTED IN EUROPEAN NATIONS EXPLOITATION OF LABOURS REVOLT OF LABOURS INTRODUCTION OF LEGISLATION FOR INDUSTRIES  ACCEPTANCE OF LEGISLAT

INTRODUCTION OF RECIPROCATING COMPRESSOR Reciprocating Air Compressor is a positive displacement air compressor in which air is sucked in a chamber and compressed with the help of a reciprocating piston. It is called as positive displacement compressor because air is first sucked in a chamber and then compression is achieved by decreasing area of the chamber. The area is decreased by a piston which does reciprocating motion. Working Principle In reciprocating air compressor, as the piston moves towards the BDC, the air is sucked into the cylinder from the atmosphere and when it moves  towards the TDC, the compression of the air starts and keeps on going and pressure increases. When the pressure increases upto its design limit it pushes the discharge valve to open and the compressed air is delivered to the storage tank. MAIN PARTS   Piston : It does reciprocating motion in the cylinder and responsible for the compression of the air. Cylinder : It is a chamber  in which air is compressed

  General Layout of Nuclear Power Plant- The Main components of a NUCLEAR POWER PLANT are :- Nuclear Reactor Heat Exchanger ( Steam Generator ) Steam Turbine Generator Steam Condenser Cooling Tower Coolent Pump Basic components of Nuclear power plant are :- Nuclear Reactor :- It is the heart of the nuclear power plant. In nuclear reactor, nuclear fission of radioactive material takes place. This generates large amount of heat energy. This heat is taken by the coolent circulating through the reactor core. After absorbing the heat, the coolent becomes hot. Heat Exchanger ( Steam Generator ) :- The hot coolent coming from nuclear reactor flows through tubes of heat exchanger. In heat exchanger, hot coolent gives up heat to feed water so that it can be converted into steam. After giving up heat, the coolent is again pumped back to nuclear reactor. Steam Turbine :- Steam produced in heat exchanger is expanded in steam turbine to produce mechanical energy. Generator :- Output shaft of s

  What is Six Sigma? Six Sigma is a quality management approach that benefits individual or organizations to minimize/eliminate defects in products and services. It is a group of techniques which helps you in quality improvement. Six Sigma methodology is based on statistical analysis instead of guesswork to improve processes with unknown problems. The word Sigma is a statistical term which helps a professional judge, how far a specific process needs perfection. Why do we need Six Sigma?  Here are major advantages of Six Sigma process: Significantly cut down the cost for any organization and improve customer satisfaction Shorten time to market Reduce defects, rejections, re-work and helps you simplify operations. Improve competitive position. In six sigma process, 99.9999966% of the products manufactured are expected to be free of defects. What is Six Sigma Certification? A certification course ensures that a Six Sigma Certified professional should be exposed to the complete Six Sigma B

Injection molding Machine Definition : - Injection molding is nowadays the most popular method to produce 3-dimensional parts of different kinds of polymeric materials. It is a fast process and is used to produce large numbers of identical items from high precision engineering components to disposable consumer goods. It is a suitable method for thermoplastics, thermosets, thermoplastic elastomers, elastomers, short fiber and particulate filled polymers. Today, more than one-third of all thermoplastic materials are injection molded and more than half of the polymer processing equipment is for injection molding. Injection molding is a production method for large series. Injection molding can also be used to manufacture parts from aluminium or brass. EQUIPMENT : - Injection molding machines, also known as presses, hold the molds in which the components are shaped. Presses are rated by tonnage, which expresses the amount of clamping force that the machine can generate. This pressure keeps

What is drum brake? A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum. The term drum brake usually means a brake in which shoes press on the inner surface of the drum. When shoes press on the outside of the drum, it is usually called a clasp brake. Where the drum is pinched between two shoes, similar to a conventional disc brake, it is sometimes called a pinch drum brake, though such brakes are relatively rare. A related type called a band brake uses a flexible belt or "band" wrapping around the outside of a drum. Components:- 1. Backing plate 2. Brake drum 3. Wheel cylinder 4. Brake shoes. Backing plate The backing plate provides a base for the other components. The back plate also increases the rigidity of whole set-up, supports the housing, and protects it from foreign materials like dust and other road debris. It absorbs the torque from the braking action, and that is