Mechanical Marks Study

INTRODUCTION OF KNUCKLE JOINT: . A knuckle joint is a mechanical joint used to connect two rods which are under a tensile load, when there is a requirement of small amount of flexibility, or angular moment is necessary. There is always axial or linear line of action of load.  The knuckle joint assembly consists of the following major components: Single eye. Double eye or fork Knuckle pin. Collar Taper pin At one end of the rod the a single eye is formed and a double eye is formed at the other end of the rod. Both, single and double eye are connected by a pin inserted through the eye. The pin has a head at one end and at other end there is a taper pin or split pin. For gripping purpose, the ends of the rod are of octagonal forms. Now, when the two eyes are pulled apart, the pin holds them together. The solid rod portion of the joint in this case is much stronger than the portion through which the pin passes.  The modes of failure are: Shear failure of pin (single shear). Crushing of pin

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

INTRUDUCTION The lighting system of a motor vehicle consists of lighting and signalling devices mounted or integrated to the front, rear, sides, and in some cases the top of a motor vehicle. This lights the roadway for the driver and increases the visibility of the vehicle, allowing other drivers and pedestrians to see a vehicle's presence, position, size, direction of travel, and the driver's intentions regarding direction and speed of travel. Emergency vehicles usually carry distinctive lighting equipment to warn drivers and indicate priority of movement in traffic. Vehicle lighting systems are becoming increasingly complex. For a long time now, lighting systems have placed stringent demands on workshops when it comes to maintenance and installation. We offer you a good overview of the various lighting systems and their components along with their properties and special features. We provide a sound basic understanding of the topic in a practical fashion, meaning you acquire u

INTRODUCTION   Improving customer service, making operation faster, more operation and reduction in costs are challenges faced by manufacturers today. To meet these challenges many companies in India searching to improve their ability to compete globaly. Wastage during production process is rapidly growing day by day in industries. This is because of change in taste of the customer. Which will lead to increase in production costs. There are different techniques of waste reduction and performance enhancement like Just In Time (JIT), Total Quality Management (TQM), Total Productive Maintenance (TPM), Kaizen etc.          Kaizen is a Japanese hybrid work. It is a compound word involving two concepts: Kai (change) and Zen (for the better). The term comes from Gemba Kaizen meaning ‘Continuous Improvement’ (CI). Continuous Improvement is one of the core strategies for excellence in production, and is considered vital in today’s competitive environment. It calls for endless effort for improve