saurabhjain

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Everything posted by saurabhjain

  1. Distinguish between ray diagram & speed diagram with respect to machine tool
  2. Mechanical Engineering Interview Questions and answers for freshers on design, safety and maintenance. 1) What is an accident ? An accident is a unexpected and unforeseen event which may or may not injury to a person or a machine tool. 2) What are the standard sizes of drawing board as per Indian Standards? As per Indian Standards :1250×900,900×650,650×500,500×350,350×250 sizes are available. 3) What are the functions of a scale ? (a) To measure distance accurately. (b) For making drawing to scale either in full size, reduced size or enlarged size. 4) What is a sketching ? This is freehand expression of the graphic language. 5) What do you mean by First Aid ? First Aid is immediate and temporary care given to a person who affected accidental injury or a sudden illness before the arrival of doctor. 6) What is a Drawing ? It is a graphical representation of a real thing to define and specify the shape and size of a particular object by means of lines. 7) What is Engineering Drawing ? A drawing which is worked out an engineer for the engineering purpose is known as Engineering Drawing. 8) What are the methods of extinguishing fire ? 1) Starvation. Separating or removing the burning material from the neighbour hood of the fire. 2) Blanketing. Preventing the air flow to the fire. 3) Cooling. Lowering the heat created by burning materials. 9) What are the precautions to be taken to avoid fire ? 1) The buckets along with sand should be placed inside the workshop. 2) Switches and other electrical parts must be made of fireproof material. 3) Carbon dioxide gas should be place at required points in special containers. 4) Fire extinguishers of suitable type should be placed at accessible places.\ 10) What safety precautions should be observed while working in the workshop ? 1) Keep shop floor clean, free from oil and other slippery materials. 2) Wear proper dress and avoid loose clothing and loose hair. 3) Wear shoes and avoid chapels. 4) Avoid playing, loose talk and funning inside the shop floor. 5) Keep good housekeeping and put all unnecessary items and rejected items in scrap box. 6) Learn everything about the machine before starting and clear all the doubts. 7) Keep a safe distance from rotating and sliding parts. 8) Never store inflammable materials inside or around the shop. 9) Never play with electricity, fire, parts with sharp edge etc. 10) Keep fire buckets and extinguishers ready for use.
  3. Which one will cool faster?? You have a cold drink bottle at room temperature. In order to cool it, you place it in the refrigerator. But you want it get chilled faster. Now you have two options, place it vertical or horizontal. Assuming the effects of forced convection are negligible in your refrigerator, which way will the bottle cool fast either Horizontal or Vertical?
  4. Explain why washers are used? You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus
  5. What is the advantage of plummer block over a simple bushed bearing? 1. You can answer this question. 2. You can like the best answer. 3. You can share the question
  6. What is Difference between Hardness and Toughness? 1. You can answer this question 2. You can like the best answer 3. You can share the question..... In which units are they measured? Also check the image for conversion of Rockwell Hardness Scales verses Vickers Hardness Number
  7. What is the advantage of providing bush in a bearing? And What is the material of bush? 1. You can answer this question. 2. You can like the best answer. 3. You can share the question
  8. What is the difference between pump and compressor ? When we use pump and When we use compressor? You can answer this questionYou can like the best answerYou can share the question.....You can get updates of new questions on Facebook linkedin twitter & google plus
  9. Why first angle and third angle method is used and why second and fourth angle method is not used? 1. You can answer this question 2. You can like the best answer 3. You can share the question...
  10. State difference between AnitiFriction Bearing and Journal Bearing? 1. You can answer this question 2. You can like the best answer 3. You can share the question...
  11. From the album Watch Escapements Diagrams & Pictures

    The diagram above shows a typical watch escapement and gear train.
  12. Why pinion should be made from superior material then gear? 1. You can answer this question 2. You can like the best answer 3. You can share the question.
  13. Why gas containers are mostly cylindrical in shape? 1. You can answer this question 2. You can like the best answer 3. You can share the question.
  14. Which is the best lubricant-air, oil or water?
  15. A vertical plate and a horizontal plate are suspended in an open room. Both are heated to the same temperature. Which one will cool first? Why?
  16. Are Gas Engines Now More Efficient Than Diesel? If yes than,give reason. 1. You can answer this question 2. You can like the best answer 3. You can share the question...
  17. To ask question - pl post in the forums https://mechanical-engg.com/forums/forum/44-question-answers/
  18. What is the difference between casting & forging? Why use castings & why use forgings? 1. You can answer this question 2. You can like the best answer 3. You can share the question...
  19. What condition must be satisfied in order that a pair of spur gear may have a constant velocity ratio? 1. You can answer this question. 2. You can like the best answer. 3. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus
  20. What is I beam? Why I beam is so effective and used for heavy loading? 1. You can answer this question 2. You can like the best answer 3. You can share the question...
  21. What is the purpose of tolerances when applied to geometric dimensioning ? This question is suggested by Michael Hunt What are advantages of hartnell over porter governor? You can answer this question.You can like the best answer.You can share the questionYou can get updates of new questions on Facebook linkedin twitter & google plus
  22. What is the difference between knocking and detonation in IC engine? 1. You can answer this question. 2. You can like the best answer. 3. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus
  23. What is 'CC' of a bike? How does it matter? 1. You can answer this question. 2. You can like the best answer. 3. You can share the question
  24. hiiiiiiii i`m starting here a new game...here the person who is before you will write a word and you have to say anything but THAT WORD should come in ur sentence....and after that you have to write A WORD for the others............but be sure the word you r writing for others should be an Engineering term I start with word Gear
  25. This is word building game but words to only related to engineering... First word: Mechanical Next word starting with L but related to Engineering ...