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  • Question

  • A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called


  • Options
  • A. castle nut
  • B. jam nut
  • C. ring nut
  • D. sawn nut

  • Correct Answer
  • ring nut 

    • Machine Design problems

    Search Results

    • 1. In a flange coupling, the thickness of flanges is taken as one-half the diameter of shaft.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 2. According to Indian standard specifications, 100 H6/g5 means that the

    • Options
    • A. actual size is 100 mm
    • B. basic size is 100 mm
    • C. difference between the actual size and basic size is 100 mm
    • D. none of the above
      • Discuss
    • 3. A screw is said to be over hauling screw, if its efficiency is

    • Options
    • A. less than 50%
    • B. more than 50%
    • C. equal to 50%
    • D. none of these
      • Discuss
    • 4. Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.

    • Options
    • A. elastic strength
    • B. yield strength
    • C. shear strength
      • Discuss
    • 5. A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)

    • Options
    • A. less than 20 d
    • B. greater than 30 d
    • C. between 20 d and 30 d
    • D. equal to inside diameter of pipe
      • Discuss
    • 6. The number of rivets in shear shall be equal to the number of rivets in crushing.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 7. For maximum power, the velocity of the belt will be

    • Options
    • A.
    • B.
    • C.
    • D. none of these
      • Discuss
    • 8. When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

    • Options
    • A. angular bevel gears
    • B. crown bevel gears
    • C. internal bevel gears
    • D. mitre gears
      • Discuss
    • 9. A sliding bearing in which the working surfaces are completely separated from each other by lubricant is called zero film bearing.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The number of slots in a 25 mm castle nut is

    • Options
    • A. 2
    • B. 4
    • C. 6
    • D. 8
      • Discuss

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