31. A universal coupling is used to connect two shafts
32. Oldham coupling is used to connect two shafts
33. A flange coupling is used to connect two shafts
34. The material commonly used for crane hooks is
35. During hot working of metals,
36. Which of the following statement is correct for gears?
37. Which is correct statement?
38. A hot short metal is
39. Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is
40. The taper on cotter varies from
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