Posted in Welding Engineering

Oxy-Acetylene High Pressure System

Oxyacetylene welding is a fusion-welding process. The coalescence of metals is produced by an oxygen-acetylene flame; Extreme heat is concentrated on the edges or on the edge and surface of the piece of metal being joined until the molten metal flows together. The type of joint design determines whether a filler metal should be used to complete the weldment or not. Filler metal is added by inserting it into the molten puddle of the base metals. The puddle then solidifies, after cooling making the weld bead. The extremely high heat depends on the mixture of two types of gaseous substances,…

Posted in Welding Engineering

Basic Welding Operations Introduction

Welding is widely used by metal workers in the fabrication, maintenance, and repair of parts and structures. While there are many methods for joining metals, welding is one of the most convenient and rapid methods available. In order to join two or more pieces of metal together by one of the welding process, the most essential requirement is heat. Pressure may also be employed, but this is not essential in many processes. Welding is the process of joining metals by heating them to their melting temperature and causing the molten metal to flow together. These range from simple steel brackets…

Posted in Welding Engineering

Basic Welding Operations Introduction

Welding is widely used by metal workers in the fabrication, maintenance, and repair of parts and structures. While there are many methods for joining metals, welding is one of the most convenient and rapid methods available. In order to join two or more pieces of metal together by one of the welding process, the most essential requirement is heat. Pressure may also be employed, but this is not essential in many processes. Welding is the process of joining metals by heating them to their melting temperature and causing the molten metal to flow together. These range from simple steel brackets…

Posted in Reaction Engineering

Introduction to Chemical Reactor Design

We seek to design reaction vessels, i.e. chemical reactors, where a particular chemical reaction (or set of reactions) is carried out. The first decision we take involves the configuration of the reactor and its mode of operation. This means we must decide what reactor type (and reactor shape) to select and whether it would be advantageous to operate in batch or continuous mode. Other design decisions regarding the new reactor will be affected by a multiplicity of factors. To arrive at an appropriate design, we need information on the reaction kinetics and the required daily output. For relatively small daily…

Posted in Results

Result of Central Armed Police Forces (ACs) Examination, 2018

CENTRAL ARMED POLICE FORCES (ASSISTANT COMMANDANTS) EXAMINATION, 2018 RESULT Based on the result of written part of CAPF (ACs) Examination, 2018 held by UPSC on 12th August 2018, the candidates with the under-mentioned Roll Numbers have qualified for Physical Standards Test/ Physical Efficiency Tests and Medical Standards Tests. The candidature of all the candidates whose Roll Numbers are shown in the list is Provisional, subject to their being found eligible in all respects. The candidates will be required to produce the original certificates in support of their claims pertaining to age, educational qualifications, community etc. at the time of the…

Posted in Search Engine Optimization

Why Google is So Important in Our Life

So why a special guide just on Google? Aren’t there hundreds, if not thousands, of search engines out there that need to be worried about? There are many other search engines and search directories that exist, but Google is the most prominent, most used, and most important of them all. At the very least, it is the search engine you should focus your website promotion efforts on first. So, lets discuss why this is so… Without a doubt, Google is the largest and most used search engine in the world today. Google currently indexes over 4.3 billion Web pages (as…

Posted in Mechanical Engineering

What is Dielectric Fluid and Its Purpose

Dielectric Fluid & Purpose It is liquid generally a hydrocarbon mineral oil used to serve as a spark conductor by concentrating the energy to a very narrow region. A liquid dielectric is a dielectric material in liquid state. Die electric fluids generally used are transformer oil, silicon oil, spirit, kerosene, paraffin. Its main purpose is to prevent or rapidly quench electric discharges. It is flushed through the spark gap and is supplied through a hole in the tool or from external jets. Dielectric liquids are used as electrical insulators in high voltage applications, e.g. transformers, capacitors, high voltage cables, and…

Posted in Career

Careers in Audiology and Speech-Language Pathology

There are multiple subjects and disciplines of study with their own distinct features in the field of allied health. Audiology and Speech and Language Pathology is an allied health science which is directly concern with knowledge & skills to evaluate, diagnose and treat (intervention) disorders, swallowing as well as disability screen & advocacy in individual of any age across life span. It also includes counseling persons with disorders of communication and their family members rehabilitate persons with speech, language, swallowing and hearing disorders prevent speech, language, swallowing and hearing disorders. Professionals having qualification in speech and language pathology (SLP) are…

Posted in Mechanical Engineering

Guide to Repair of Aero Engine Components

Introduction to Repair of Aero Engine Components Organizations that are holding a large inventory of various types of aircraft and related equipment where most of the aircraft might have been imported from foreign countries. So, to keep the fleet serviceable, it is necessary to maintain high serviceability of all components of aircraft including aero engine parts by repairing/replacing them. When an aircraft is dismantled for overhaul, all the components are checked and tested. If any component is found worn out or damaged, either it is to be replaced with new one or is to be repaired. This depends on, whether…

Posted in Mechanical Engineering

Non-Destructive Testing Process

What is Non-Destructive Testing Non-Destructive Tests (NDT) are conducted to determine the defects appearing at the surface or inside the components of machines without destroying them. Main purpose of applying NDT is to ensure material reliability and prevent premature material failure. It is carried out on finished or semi-finished materials to check for discontinuities or defects. It is essential for flight safety and for keeping inspection cost low. NDT ensures material reliability and prevents premature material failure. A product is designed to perform the assigned functions well and give trouble free service to the user for a stipulated period. The trouble-free…