Mechanical Engineering GPSC

Mechanical Engineering GPSC

Mechanical engineering is one of the broadest of the engineering disciplines. Mechanical engineers have many a times changed the cause of history. Form the invention of wheel to the invention of steam engines and development of aircraft, mechanical engineers brought about some of the major turning points in human history.

This is the field of engineering that centers on the designing, constructing, operating and maintaining the machines and mechanical systems i.e. mechanical engineers deal with anything that moves- from parts of machines to the human body. Mechanical engineering careers focus on using mathematics and science along with engineering knowledge to develop technologies to satisfy the needs of humanity. 

Mechanical engineers design power producing machines such as IC engines, electric generators, steam and gas-turbines as well as power consuming machines such as refrigeration and air-conditioning systems. They are employed in industries to design, test, manufacture, install, operate and maintain various types of machines that are used in the industries.

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Subjects

Quantitative Aptitude

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This subject is very important from various exams prospective. First of All This Aptitude is asked in almost all entrance exams. May it be government exams or Any competitive exams like GATE,CAT, CSAT, NET , CLAT, IPM, SNAP, SSC JE,RRB, GPSC, MPSC,UPPSC,etc. More over this Aptitude tests your logical and conceptual skills hence maximum companies take an aptitude test as a screening for their recruitment. All top companies like TCS(conducting CCMT) or Infosys, or L &T and Alike takes and aptitude test for campus placements.... Read More

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Fluid Mechanics

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Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids & gases) and the forces on them. It has applications in a wide range of disciplines, including mechanical, civil, chemical and biomedical engineering, geophysics, astrophysics, and biology. Fluid Mechanics can also be defined as the science which deals with the study of behaviour of fluids either at rest or in motion. It can be divided into fluid statics, the study of fluids at rest; and fluid dynamics, the study of the effect of forces on fluid motion. It is a branch of continuum mechanics, a subject which models matter without using the information that it is made out of atoms; that is, it models matter from a macroscopic viewpoint rather than from microscopic. Fluid mechanics, especially fluid dynamics, is an active field of research, typically mathematically complex. Many problems are partly or wholly unsolved, and are best addressed by numerical methods, typically using computers. A modern discipline, called computational fluid dynamics (CFD), is devoted to this approach. Visualizing and analysing fluid flow, also takes advantage of the highly visual nature of fluid flow.... Read More

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Engineering Mechanics

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Applied mechanics (also engineering mechanics) is a branch of the physical sciences and the practical application of mechanics. Pure mechanics describes the response of bodies (solids and fluids) or systems of bodies to external forces... Read More

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Strength of Materials

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Strength of materials, also called mechanics of materials, is a subject which deals with the behaviour of solid (deformable) objects subject to stresses and strains. The complete theory began with the consideration of the behaviour of one and two dimensional members of structures, whose states of stress can be approximated as two dimensional, and was then generalized to three dimensions to develop a more complete theory of the elastic and plastic behaviour of materials. The study of strength of materials often refers to different methods of calculating the stresses and strains in the various members, such as beams, columns, and shafts. The methods employed to predict the response of a structure under loading and its susceptibility to various failure modes takes into account the properties of the materials such as its yield strength, ultimate strength, Young's modulus, and Poisson's ratio; in addition the mechanical element's macroscopic properties (geometric properties), such as its length, width, thickness, boundary constraints and abrupt changes in geometry such as holes are considered.... Read More

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Heat Transfer

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Heat transfer is the process of transfer of heat from high temperature reservoir to low temperature reservoir. In terms of the thermodynamic system, heat transfer is the movement of heat across the boundary of the system due to temperature difference between the system and the surroundings. The heat transfer can also take place within the system due to temperature difference at various points inside the system. The difference in temperature is considered to be ‘potential’ that causes the flow of heat and the heat itself is called as flux. Now a days the application of Heat Transfer in predicting the thermal profiles as well as the Mechanical properties of Materials are becoming popular.... Read More

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Engineering Mathematics

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Welcome to the era of Engineering mathematics. It is the backbone of all engineering exams like GATE/IES/ISRO/BARC/IITJEE etc. I have taken care of so many short tricks so that a student can save his time during exams.... Read More

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Logical Reasoning

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There is no much theory in this subject but we have variety of questions. In These videos you will find only Basic theory for a minute or two in Most of The chapters But the variety or Types of questions are important to Understand. Please refer to Quiz tab to Practice. Reasoning can be mastered with only practice. In the first version we are uploading few exercises for practice but in updated version you will get many more practice sheets without Any extra cost. This section tests your logical And analytical Skills which are required In a corporate job. Your decision making skills , time management skills and Ability to prioritize agendas are tested through this section.... Read More

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Thermodynamics

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This is a branch of Physics which deals with Heat , work & its conversion . In this subject there are four important laws of Thermodynamics where zeroth law of thermodynamics tells about the concept of temperature, first law of thermodynamics tells about the conservation of energy (base of development of all the important concept/devices) , Second law of thermodynamics tells about Entropy (base of understanding of nature ) & third law of thermodynamics tells about the absolute reference point for the determination of entropy... Read More

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Manufacturing Engineering

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Manufacturing Engineering is a branch of professional engineering. Manufacturing engineering requires the ability to plan the practices of manufacturing; to research and to develop tools, processes, machines and equipment; and to integrate the facilities and systems for producing quality products with the optimum expenditure of capital. The manufacturing or production engineer's primary focus is to turn raw material into an updated or new product in the most effective, efficient & economic way possible. Manufacturing engineers develop and create physical artifacts, production processes, and technology. It is a very broad area which includes the design and development of products. Manufacturing engineering is considered to be a sub discipline of industrial engineering/systems engineering and has very strong overlaps with mechanical engineering. Manufacturing engineer’s success or failure directly impacts the advancement of technology and the spread of innovation.... Read More

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Refrigeration & Air Conditioning

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Refrigeration is a process to decrease and maintain the temperature of a system below its atmosphere whereas Air conditioning is a process to make comfort conditions from actual uncomforting condition by maintaining temperature, Relative humidity, Movement of air & Purification of air. The base of these processes are Second law of Thermodynamics (Clausius statement ) Refrigeration has many applications, including, but not limited to: household refrigerators, industrial freezers, cryogenics, and air conditioning. Heat pumps may use the heat output of the refrigeration process, and also may be designed to be reversible, but are otherwise similar to air conditioning units and In the most general sense, air conditioning can refer to any form of technology that modifies the condition of air (heating, (de-) humidification, cooling, cleaning, ventilation, or air movement). In common usage, though, "air conditioning" refers to systems which cool air. In construction, a complete system of heating, ventilation, and air conditioning is referred to as HVAC... Read More

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Applied Thermodynamics

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Applied thermodynamics is the science of the relationship between heat, work, and systems that analyse energy processes. The energy processes that convert heat energy from available sources such as chemical fuels into mechanical work are the major concern of this science. Thermodynamics consists of a number of analytical and theoretical methods which may be applied to machines for energy conversion. In this course we will mainly discuss The Gas and Vapour power cycles.... Read More

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Theory of Machines

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Theory of Machines may be defined as that branch of engineering science, which deals with the study of relative motion between the various parts of machine, and forces which act on them. The knowledge of this subject is very essential for an engineer in designing the various parts of a machine They Theory of Machines may be sub- divided into the following four branches: 1) Kinematics: is that branch of theory of machines which is responsible to study the motion of bodies without reference to the forces which are cause this motion, i.e it’s relate the motion variables (displacement, velocity, acceleration) with the time. 2) Kinetics: is that branch of theory of machines which is responsible to relate the action of forces on bodies to their resulting motion. 3) Dynamics: is that branch of theory of machines which deals with the forces and their effects, while acting upon the machine parts in motion. 4) Statics: is that branch of theory of machines which deals with the forces and their effects, while the machine parts are rest.... Read More

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Machine Design

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Machine design is the process of engineering design. A machine is made up of mechanisms that work together to satisfy the requirements of what the machine needs to accomplish. Mechanisms can still be used independently, such as an umbrella, but cannot accomplish what a machine can because a machine controls energy in addition to motion. Machine design takes into account kinetics and kinematics, which deal with motion and the forces on an object in motion. Machine design is applied through a specific process including determining what the machine needs to do, bench-marking and defining goals and requirements, brainstorming, evaluating and selecting from the different options, creating an in-depth design, creating and testing a prototype, and finally manufacturing the machine.... Read More

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Industrial Engineering

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Industrial engineering is an inter-disciplinary profession that is concerned with the optimization of complex processes, systems, or organizations by developing, improving and implementing integrated systems of people, money, knowledge, information, equipment, energy and materials. Industrial engineers use specialized knowledge and skills in the mathematical, physical, and social sciences, together with the principles and methods of engineering analysis and design, to specify, predict, and evaluate the results obtained from systems and processes. From these results, they are able to create new systems, processes or situations for the useful coordination of man, materials and machines and also improve the quality and productivity of systems, physical or social. Depending on the sub-specialties involved, industrial engineering may also overlap with, operations research, systems engineering, manufacturing engineering, production engineering, management science, management engineering, financial engineering, ergonomics or human factors engineering, safety engineering, or others, depending on the viewpoint or motives of the user.... Read More

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Material Science

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The interdisciplinary field of materials science, also commonly termed materials science and engineering is the design and discovery of new materials, particularly solids. The intellectual origins of materials science stem from the Enlightenment, when researchers began to use analytical thinking from chemistry, physics, and engineering to understand ancient, phenomenological observations in metallurgy and mineralogy. Materials science still incorporates elements of physics, chemistry, and engineering. As such, the field was long considered by academic institutions as a sub-field of these related fields. Beginning in the 1940s, materials science began to be more widely recognized as a specific and distinct field of science and engineering, and major technical universities around the world created dedicated schools of the study, within either the Science or Engineering schools, hence the naming.... Read More

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Verbal Ability

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The verbal Ability section has been haunting to all of us Since childhood and when it comes To prepare verbal Ability section ( typically called As English or verbal) it’s really a tough Nut to crack. The major Reason for this diffident approach is Our lack of practice. As most of us are not having English As our mother tongue we are scared of this unit .Our Teachers have repeatedly told us to talk to one another in English but due To peer pressure and not taking this Module Seriously we have been lacking in it. But please Understand guys all corporate works in English and when it comes to writing emails and other stuff it’s really tough for many technocrats to cope with the fierce competition all across the globe.... Read More

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