36. At low temperatures (say 75°C) the notched-bar impact value of steel
A.Increases markedly
B.Decreases markedly
C.Remains same
D.Depends on heat treatment carried out
37. A bolt
A.Has a head on one end and a nut fitted to the other
B.Has head at one end and other end fits into a tapped hole in the other part to be joined
C.Has both the ends threaded
D.Is provided with pointed threads
38. The crest diameter of a screw thread is same as
A.Major diameter
B.Minor diameter
C.Pitch diameter
D.Core diameter
39. Maximum principal stress theory is applicable for
A.Ductile materials
B.Brittle materials
C.Elastic materials
D.All of the above
40. The following type of nut is used with allen bolt
A.Allen nut
B.Slotted nut
C.Castle nut
D.Any one of the above
41. A stud
A.Has a head on one end and a nut fitted to the other
B.Has head at one end and other end fits into a tapped hole in the other part to be joined
C.Has both the ends threaded
D.Has pointed threads
42. Shear stress theory is applicable for
A.Ductile materials
B.Brittle materials
C.Elastic materials
D.All of the above
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