Lathe accessories & Thread calculation | खराद सहायक उपकरण और थ्रेड गणना
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Q1. Which method of taper turing is used to make internal taper and external taper?
Q2. What is called the difference of major dia - minor dia?
Q3. Which type of lathe centre can be used for soft metal jobs?
Q4, Which method of taper turning can be held either in chuck or between centres?
Q5. Which lathe centre is suitable for taper turning by tailstock offset method?
Q6. What is the name of thread element marked as X?
Q7. Which one of the following is the advantage of taper turning attachment over tail stock offset method?
Q8. Which diameter the external threads are cut?
Q9. Which method of taper turning both internal and external threads can be cut on tapered portions?
Q10. Which term is used to indicate the perpendicular distance between root and crest?
Q11.What is the term used to indicate the angle of inclination of thread to the imaginary perpendicular line?
Q12. What is name of the element of screw thread marked as X?
Q13. Which is the measuring instrument used for measuring screw thread?
Q14. Where the steady rest is fixed in a lathe?
Q15. What is the included angle of the conical point of lathe centre?
Q16. What is the name of lathe attachment?
Q17. What is the element of V thread marked as X?
Q18. What is the name of gear in compound gear train marked as ‘X’?
Q19. Which diameter is used for specifying a thread?
Q20. Which parameter will decide the driver and driven gear ratio to cut thread on lathe?
Q21. What is the name of the accessory?
Q22. What is the lathe accessories used to give extra support for long slender work piece?
Q23. Which one of the following is the disadvantage of taper turning attachment?
Q24. Why does square thread is used in vices?
Q25. Which part of a lathe is used to catch thread quickly?
Q26. Which of the following is a modified form of square thread?
Q27. What is the name of the surface joining the crest and the root?
Q28. Calculate the change gears to cut a worm of 0.35” lead on a lathe with a lead screw of 4TPI?
Q29. What does it mean a thread is turning clockwise to advance?
Q30. What is the name of the lathe centre?
Q31. What is the name of the part marked as X?
Q32. What is the type of centre used for supporting heavy jobs revolving with high speed?
Q33. What is the advantage of using idler gear in simple gear train?
Q34. What is the element of taper marked as X?
Q35. Why does square thread is used in screw jack?
Q36. What is the name of screw thread element marked as ‘X’?
Q37. What is the element of taper marked as X?
Q38. What is the name of the part marked as X?
Q39. What is the name of lathe centre, which is used while facing the job with out disturbing the setting?
Q40. How many adjustable pads are in fixed steady rest?
Q41. Which type of lathe centre is used for supporting pipes, shells and hallow end jobs?
Q42. How multi start threads are specified?
Q43. What is the function of attachment in taper turning?
Q44. Where the follower steady rest is fixed on lathe?
Q45. What is known as the hand of a thread?
Q46. Calculate the lead of triple start thread if the pitch is 8 mm.
Q47. What is the type of lathe centre used to support the end of job where no counter sink hole is permitted?
Q48. What is the name of gear in compound gear train marked as ‘X’?
Q49. What is the name of the bottom surface joining the two sides of adjacent thread marked as X?
Q50. Which is the lathe accessory used to drive the work during turning between centres?
Machinist 1st Year Module 9 Lathe accessories & Thread calculation
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