A backing ring is used inside the pipe joint when making a

A. Butt weld

B. Fillet weld

C. Sleeve weld

D. Socket weld

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible…
  2. Which of the following is a permanent fastening?
  3. According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal…
  4. When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant…
  5. According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the…
  6. In the levers of first type, the mechanical advantage is __________ one.
  7. The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for
  8. The temperature at which the new grains are formed in the metal is known as
  9. The process extensively used for making bolts and nuts is
  10. When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is…
  11. Which of the following statement is wrong?
  12. Which of the following statement is correct?
  13. Stress concentration factor is defined as the ratio of
  14. The number of slots in a 25 mm castle nut is
  15. Silver based solder is used for
  16. In thrust bearings, the load acts
  17. The size of a cam depends upon
  18. The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal…
  19. In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders…
  20. In order to permit the thermal expansion/contraction of tubing, it should be
  21. Which of the following key is preferred for the condition when a large amount of impact type torque…
  22. When two springs are in series (having stiffness K), the equivalent stiffness will be
  23. In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole…
  24. In worm gears, the pressure angle is ________ the angle between two inclined faces in axial plane.
  25. Which is correct statement? Stress concentration in static loading is
  26. The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is
  27. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  28. The rivet head used for boiler plate riveting is usually
  29. The smallest diameter of an external or internal screw thread is known as
  30. In oilness bearings