Author Archives: magnaparthi

Direct Injection Gasoline Engine | DISI Engine

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In developing the DISI engine, we aimed to cool the interior of the cylinder as much as possible by promoting fuel vaporization and uniform mixing of atomized fuel and air. This produces a high charging efficiency of the air-fuel mixture and a high compression ratio, which results in significant improvements in both torque and fuel efficiency. Characteristics of the direct

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Idling Stop Technology | i-stop

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Idle stop systems save fuel by shutting down a vehicle’s engine automatically when the car is stationary and restarting it when the driver resumes driving. Especially in urban areas, drivers often let their car’s engine idle at traffic lights or when stopped in traffic jams. Switching off the engine to stop it idling in these situations enhances fuel economy by

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Latest Placement Papers in Mechanical

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WHAT IS THE DIFFERENCE BETWEEN RATED SPEED AND ECONOMIC SPEED? THE RATED SPEED TELLS US ABOUT THE MAXIMUM SPEED WHICH CAN BE ACHIEVED BY A VEHICLE OR SOME OTHER MACHINE BUT THE ECONOMICAL SPEED MEANS THE SPEED LIMIT AT WHICH THE MACHINE WORKS EFFICIENTLY WITH LEAST CONSUMPTION OF FUEL.EG-IN NORMAL BIKES(NOT RACING),THE MAX.SPEED LIMIT SHOWN ON SPEEDOMETER IS UPTO 120

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Mechanical Engineer Job Interview Questions

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Different between technology & engineering? Engineering is application of science. Technology shows various methods of Engineering. A bridge can be made by using beams to bear the load,by an arc or by hanging in a cable; all shows different technology but comes under civil engineering and science applied is laws of force/load distribution. how a diesel engine works in generator?

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Thermal Engineering Interview Questions

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A bearing is designated as 6205 , what is it’s bore diameter? advantages and disadvantages of using LPG in car? All Rector or Exchanger have spherical/hemispherical end Why? Compare Brayton and Otto cycle. current rating of a 3 phase DG set is 20 Amps, but what will be the per phase current for single phase supply. Define Overall Heat transfer

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Latest Mechanical Engineering Interview Questions with Answers

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1. A Bearing is designated as 6205 , what is it’s bore diameter? Bore diameter is equal to : last two digit multiplied by 5. In case of 6205 , the bore diameter =05 x 5 = 5 x 5 =25 mm 1.The third and fourth digits indicate the bore size in millimeters. Except for                  0 through 3, the bore

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Latest Interview Questions in Mechanical | Mechanical Engineering Interview Questions and Answers | Mechanical Engineer Job Interview Questions | Latest Placement Papers | Mechanical Engg Questions

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1. What is the importance of the Thermodynamics in the field of Mechanical Engineering? All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers. 2. How many Laws of Thermodynamics are there? There are three laws of the thermodynamics. First Law: Energy can be neither created nor destroyed. It

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What is WLAN

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WLAN, which stands for Wireless Local Area Network, is the technology of networking of a number of computers with each other without requiring the usage of wires. Due to a number of WLAN’s advantages such as ease of installation, convenience, deployment, mobility, expandability, productivity and cost, the popularity of WLAN has increased among home users. Wireless access is now offered

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What is WiMAX | Worldwide Interoperability for Microwave Access | Next Generation 4G Wireless Technology

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WiMAX, which stands for “Worldwide Interoperability for Microwave Access,” is a subset of standard, interoperable implementations within the IEEE 802.16 family of standards developed by the Institute of Electrical and Electronics Engineers (IEEE) 802.16 Working Group on Broadband Wireless Access Standards. WiMAX is the next-generation of wireless technology designed to enable pervasive, high-speed mobile Internet access to the widest array

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What is WEP

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WEP, which could stand for either Wired Equivalent Privacy or Wireless Encryption Protocol, is a security scheme employed by the Institute of Electrical and Electronics Engineers (IEEE) for IEEE 802.11 wireless networks since the standard’s ratification in September 1999. WEP was part of the IEEE 802.11 standard and its amendments up until IEEE 802.11i, when it was replaced by Wi-Fi

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