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Engineering
Mechanical
ME Set-3
Theory of Machines
103

Theory of Machines MCQ with Answers

103) The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of

0.25

0.45(r) 0.55

0.75

d

Answer is:

0.75

Theory of Machines MCQ with Answers

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Related Theory of Machines MCQ with Answers

104) At low temperatures (say 75°C) the notched-bar impact value of steel

increases markedly

decreases markedly

remains same

depends on heat treatment carried out

Answer is:

decreases markedly

105) A bolt

has a head on one end and a nut fitted to the other

has head at one end and other end fits into a tapped hole in the other part to be joined

has both the ends threaded

is provided with pointed threads

Answer is:

has a head on one end and a nut fitted to the other

106) The crest diameter of a screw thread is same as

major diameter

minor diameter

pitch diameter

core diameter

Answer is:

major diameter

107) If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be

10VZ

10VZ to 15Vd

15Vd to 20VZ

20Vd to 30Vd

Answer is:

20Vd to 30Vd

Theory of Machines MCQ with Answers

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