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saurabhjain last won the day on March 21

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About saurabhjain

  • Rank
    Feeling Good
  • Birthday 10/23/1982

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  • Present Company
    JSW Steels Ltd
  • Designation / Job Title
    Asst Manager - Risk management
  • Highest Qualification
    MBA Oil & Gas Management
  • Year of completition
  • Engineering Qualification
    B.E Mechanical Engineering
  • Year of completition
  • Name of Institute
    Maharishi Arvind institute of Engineering & Technology

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  • Achievement /recognition/ Certifications
    BEE certified energy auditor
    Six Sigma - green belt

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85,808 profile views
  1. Distinguish between ray diagram & speed diagram with respect to machine tool
  2. To ask question - pl post in the forums
  3. Welcome on the board... We encourage knowledge sharing however adverting is not allowed You can start the discussions in relevant forums ME Basics ME applications You can even start your own blog section... Videos from youtube can be directly added on the site....
  4. Please try now... The file has been updated
  5. Dear Mechanical Engineering professionals, Please accept New year wishes. Lets come together and wish every one by replying to this post. Happy new Year Hope the new year brighten up your Mechanical Engineering profession. Freshers get the desired job Researchers get success in their projects All of us can get an opportunity to work in desired role and in desired company For those who are looking to start up as an entrepreneur can get the first move on Entrepreneurs who have recently started can take their work to new level Please do share - how will you like to take off in your Mechanical engineering profession- What are your new year resolutions?
  6. Why centrifugal pump casing is called involutes casing?
  7. Dear sir

                   i need some help about my samester project in thermodynamics. please suggest what type of assymption can i take im problem. 

    i will be very thankful to you.

    project question.docx

    1. admin


      Please share this question in the forums - so all can try to help you 

  8. Can you please share this ppt in our Download section
  9. Hi Sir, 

     You are doing a good thing out here.

    1. saurabhjain


      Join us and make it better : gd to better

  10. 1. What are the differences between true stress, engineering stress, proof stress. 2. What do you men by factor of safety and what is its significance 3. What do you mean by Young’s modulus, modulus of rigidity and bulk modulus. 4. What do you mean by resilience. 5. What is pure torsion and what do you mean by flexural igidity. 6. What is the difference between endurance limit stree and endurance strength. 7. What do you understand by efficiency of riveted joint. 8. What is caulking and fullering in riveted joint. 9. What do you mean by stress conc. Factor and what are the methods to reduce stress conc. 10. Why stress conc. Is more serious in brittle materials. 11. What do you mean by fatigue . 12. Springs are subjected to which type of streses. 13. What are the difference between through bolt, tap bolt and stud. 14. What is check nut and what is the function of washer. 15. Cotter and knuckle joints take which type of load and where they are used. 16. What are the difference types of couplings and what is their function. 17. What is the function of key and which type of stress they are subjected to? 18. Generally shafts are subjected to which type of stress. 19. What are the difference types of mechanical drives and which is the best for different situations. 20. What is the function of a bush why it is phosphor bronze. 21. What are difference types of threads and which threads are used for power transmission and why. 22. Why the pulley arms are elliptical in cross section and it is made up of cast iron. 23. Why it is required to change the all V belt if one of them is broken. 24. Why V belts transmit more power than flat belts. 25. What is the meaning of 6*37 or 6*7 in a rope drive. 26. What do you mean by pinion sprocket and wheel sprocket and which one is used for driving shaft. 27. What is the function of flywheel and why its material is cast iron. 28. Why the leaf springs are laminated as reducing length. 29. What is the function of clutch and is the difference between uniform wear and uniform pressure. 30. Now a days which type of clutches are used in automobiles. 31. Why disc brake is more efficient than mechanical brake. 32. What is the function of bearings and what are the different types. 33. What is bearing characteristics number and bearing modulus. 34. What is the significance of the digits of a rolling contact bearing number 6304? 35. Which type of gear drive is used for perpendicular transmission of power? 36. Why helical gears transmit more power than spur gears. 37. What do you mean by different terms like back lash, pressure angle, circular pitch in a gear drive. 38. Why involute tooth profile is better than cycloid tooth profile? 39. What is interference in gear drive and how to avoid it? 40. What do you mean by law of gearing
  11. hey add me in what's app 01278856689

  12. please do not share mobile numbers in public domain
  13. Following are the reasonable points that conclude the high torque and efficiency of diesel engine. Diesel engine uses simple mechanism for combustion unlike in gasoline engine. Removal of ignition system not only makes the mechanism simpler but also reduces the risk of improper combustion due to damage in ignition system. In short burning of the fuel is easy and always accessible. This results in higher efficiency diesel engine. Diesel fuel is a heavier hydrocarbon in which carbon and hydrogen are strongly bonded with each other. And when energy is supplied in form of heat it gets explode releasing much higher energy then gasoline. In short diesel fuel has higher energy density then gasoline which results in huge explosion. One more factor for higher efficiency in diesel engine is its property of lubrication. Although all fuel has property of lubrication but diesel fuel has much higher lubrication then gasoline fuel. The compression ratio is much higher in diesel as compared to gasoline because in diesel engine air is alone compressed inside the cylinder and it’s a known fact that gas easily compresses then liquid. This is not so in gasoline engine because air-fuel mixture is compressed inside the cylinder. This higher compression gives higher heat and simultaneously higher torque. We can’t use Carnot cycle to get 100% efficiency but can use its principle to attain maximize efficiency. In diesel engine heat is added at constant pressure which results in higher utilization of heat energy to get maximize work output. These were the advantageous features of diesel engine but it has some demerits as well like it releases highly toxic gases, noisy, higher maintenance cost and starting problem (now starting problem is eliminated by using a bulb nearby to the cylinder) to heat the engine before ignition. And it is costlierthan gasoline engine but with optimum operation and good maintenance resolve all these problems.