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

A. Butt weld

B. Fillet weld

C. Sleeve weld

D. Socket weld

Correct Answer : A.


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  2. The maximum efficiency of a square threaded screw is
  3. In case of V-belt drive
  4. According to Indian standards, total numbers of tolerance grades are
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  6. In a horizontal flat belt drive, it is customary to use
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  8. Which is correct statement?
  9. In a multiple V-belt drive, if one of the belts break, then
  10. Split nut is a locking device in which
  11. Turn buckle has
  12. In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where…
  13. Which one of the following loading is considered for the design of axles?
  14. An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock…
  15. The ultimate strength of steel in tension in comparison to shear is in the ratio of
  16. If the centre distance of the mating gears having involute teeth is varied within limits, the velocity…
  17. Which of the following statement is correct, for two shafts connected in parallel?
  18. In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders…
  19. The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under…
  20. While designing a screw in a screw jack against buckling failure, the end conditions for the screw are…
  21. Yield point in fatigue loading as compared to static loading is
  22. The ratio of endurance limit in shear to the endurance limit in flexure is
  23. When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order…
  24. If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according…
  25. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making…
  26. In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing
  27. A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as
  28. In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole…
  29. The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G =…
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