Hydraulic Brake System

The Hydraulic brake system is a braking system which uses brake fluid usually includes ethylene glycol, to transmit pressure from the controlling unit, which is usually near the driver, to the actual brake mechanism, which is near the wheel of the vehicle. The most common arrangement of hydraulic brakes for passenger vehicles, motorcycles, scooters, and mopeds, consists of the following Brake pedal or Brake lever Pushrod, also called an ...

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What is Lean-Manufacturing ?

Lean Manufacturing is a business initiative to reduce waste in manufactured products. The basic idea is to reduce the cost systematically, throughout the product and production process, by means of a series of engineering reviews. The crucial insight is that most costs are assigned when a product is designed. Often an engineer will specify familiar, safe materials and processes rather than inexpensive, efficient ones. This reduces project risk, that is, the cost to the engineer, while increasing financial risks, and decreasing profits. Good organizations...

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Main Components of Compressed Air Systems

Compressed air systems consist of following major components: Intake air filters, inter-stage coolers, after-coolers, air-dryers, moisture drain traps, receivers, piping network, filters, regulators and lubricators. Intake Air Filters : Prevent dust from entering a compressor; Dust causes sticking valves, scoured cylinders, excessive wear etc. Inter-stage Coolers : Reduce the temperature of the air before it enters the next stage to reduce the...

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Flywheel Energy Storage

Flywheel energy storage systems store kinetic energy (i.e. energy produced by motion) by constantly spinning a compact rotor in a low-friction environment. When short-term back-up power is required (i.e. when utility power fluctuates or is lost), the rotor's inertia allows it to continue spinning and the resulting kinetic energy is converted to electricity. Active Power's CleanSource® Flywheel Technology, as shown below, integrates the function...

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Vapour Compression Refrigeration Cycle

Vapour compression refrigeration systems are the most commonly used among all refrigeration systems. As the name implies, these systems belong to the general class of vapour cycles, wherein the working fluid (refrigerant) undergoes phase change at least during one process. In a vapour compression refrigeration system, refrigeration is obtained as the refrigerant evaporates at low temperatures. The input to the system is in the form of mechanical...

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Mechanical Parts Drawing for practice

Here i am sharing some mechanical parts industrial drawing solely for practice and understanding. ...

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Marine Engines Or Parts of Internal Combustion Engine

Here i am sharing the simple marine engine; 9 hp; for small ship: Marine engine and its parts ( please enlarge to view clearly) Description of important parts: Cylinder head: In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In...

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Let's Prepare for Technical Interview (Part-6)

Mechanical engineering interview questions: Que: What is bending moment? Ans: When a moment is applied to bend an element, a bending moment exists in the element. Que: What are the points in the Stress Strain curve for Steel? Ans: Proportional limit, elastic limit or yield point, ultimate stress and stress at failure. Que: Define Reynolds number? Ans: Reynolds number is the ratio of inertial force and viscous force. It is a dimensionless number. It determines the type of fluid flow. Que: What is a Newtonian fluid? Ans: A...

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Let's Prepare for Technical Interview (Part-5)

Mechanical Engineering Interview Questions: Que: The purpose of jigs and fixtures are to: a. Increased production rate b. Increased machining accuracy c. Facilitate interchangeable manufacturing d. Enable employ less skilled operators e. All of the above Ans: All of the above. Que: Which one of the following methods produces gear by generating process a. Hobbing b. Casting c. Punching d. Milling e. Broaching Ans: Hobbing Que: Tool life of the cutting tool is most affected by a. Cutting speed b. Tool geometry c. Cutting feed and depth d. Micro-structure of...

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Let's Prepare for technical interview (Part-4)

Mechanical engineering interview questions: Que:What is the importance of thermodynamics in the field of mechanical engineering ? Ans:All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers. Que: How many laws of thermodynamics are there? Ans: There are three laws of the thermodynamics: First Law: Energy can be neither created nor destroyed. It can only change forms.In any process in an isolated system, the total energy remains the same. Second Law: When two...

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