Engr.Tech

In part one of this instrumentation and control (I & C) series, we'll go over the fundamental terminology and concepts used when working with industrial plants. This is the first of a series of technical articles about instrumentation and control. In this series, we will discuss the basic concepts and principles that govern the operation of industrial plants. Concepts associated with measurements of flow, level, temperature and pressure, electronics and pneumatics instrumentation, control loops, PID control, and others will be addressed. Article Scope Someone once asked a colleague what his occupation was. He replied without hesitation, "I am an instrumentation and control engineer." "And what is that?" asked his interlocutor. "...Oh. Oh ... I'm in trouble," thought the engineer. To explain what a mechanical, electrical, chemical, or electrical engineer does is relatively easy, but it is another story to concisely describe the work pe

Earthing or Grounding:                                          Earthing, or 'grounding' an electrical network is an essential safety feature,  which can protect equipment from electrical faults and save lives. When live wires touch a grounded metallic section, the brunt of the high voltages is safely directed towards the ground. Purpose of Earthing Electrical networks are earthed for three main purposes: 1.       As a safety feature for property, equipment and life  - An earthed circuit reduces the risk of death or injury by providing an alternate path for current to discharge into the ground. Equipment, appliances and property are  protected against faults , leaks and fires resulting from short-circuits and sparking. 2.       Protection against over-voltage  - Earthing also provides protection against power surges, accidental connection with high-voltage lines and even lightning strikes, allowing the energy to flow to the ground, with minimal effect. 3.       Vo

Index => Quiz    Show all questions Previous   Next The Function of Breather in a Transformer is   ?     To Provide Cooling Air   ?     To filter the Transformer Oil   ?     To provide oxygen to the cooling oil   ?     To arrest flow to moisture when outside air enter the transformer Olymic is the Airline of   ?     Greece   ?     Lebnon   ?     Egypt   ?     Syria Which of the following is minimised by the laminating the core of a transformer?   ?     Hysteresis Loss   ?     Eddy Current Loss   ?     Heat Loss   ?     All of the Above International organization ICAO is abbreviation of   ?     International Court of Atomic Operation   ?     Intergovernmental Court of Atomic Operation   ?     International Civil Aviation Organization   ?     International Court of Aviation Operations Sabeena is the Airline of   ?     Iran   ?     Belgium   ?     Afghanistan   ?     Iraq