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Theory of Machine
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In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

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Correct Answer: Option B
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12 Comments
Thanush Durairajan
Thanush Durairajan 6 years ago
Crank Diameter = 50
Convert into Radius = 50/2 = 25
So, 25 + (Length of follower) 70= 95mm
If we Pivoted at 95mm there won't be Proper Oscillation.
Ans: " Slightly lesser than 95mm "
Thanush Durairajan
Thanush Durairajan 6 years ago
Crank Diameter = 50
Convert into Radius = 50/2 = 25
So, 25 + (Length of follower) 70= 95mm
If we Pivoted at 95mm there won't be Proper Oscillation.
Ans: " Slightly lesser than 95mm "
Sachidanand Pandey
Sachidanand Pandey 6 years ago
Solves in question please suppose that four bar chain required to given an excellent motion is the the follower of the continuous rotation of the Crank the length of 50mm Crank and 70mm how less than 95slightly
Sai Prathap
Sai Prathap 6 years ago
L+S
Nkit Rajpoot
Nkit Rajpoot 7 years ago
25+70= 95 ...length should be less than because for oscillating condition
Praveen Kakara
Praveen Kakara 7 years ago
Explain please
Praveen Kakara
Praveen Kakara 7 years ago
Explain please
Tarun Kumar
Tarun Kumar 7 years ago
Crank(P) =50
Follower/rocker(Q) =70
S+L
Nitin Bagade
Nitin Bagade 7 years ago
please explain
Patel Sandip
Patel Sandip 7 years ago
Plz explain it
Manohar Kumar
Manohar Kumar 7 years ago
Please explain it
Adithya Sb
Adithya Sb 7 years ago
Plz plz explain this for me plz