Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 13)
13.
The Whitworth quick return motion mechanism is formed in a slider crank chain when the
Discussion:
41 comments Page 4 of 5.
Shiva said:
10 years ago
Right answer D.
Because QRM is 2nd inversion in slider crank mechanism. And this is double crank machine. This is find only when shortest link (crank) is fixed.
Because QRM is 2nd inversion in slider crank mechanism. And this is double crank machine. This is find only when shortest link (crank) is fixed.
RAHUL said:
1 decade ago
I think answer given is wrong. In slider crank chain there is no coupling rod it is called as connecting rod. When connecting rod fixed we get crank and slotted lever mechanism. Whitworth return motion mechanism is formed when crank or smallest links fixed. So answer is [d].
Yuvi jambhale said:
9 years ago
No, the answer is wrong. When we fix coupler then it is slotted & crank mechanism so, the 2nd inversion of single slider MSM is quick return MSM and it is done by fixing the shortest link.
Pankaj chauhan said:
9 years ago
Yes, The right answer should be D.
Atul said:
9 years ago
I too agree, the correct answer is option D.
Abhi said:
9 years ago
The answer should be D.
Subhasish chatterjee said:
9 years ago
No, the adjacent smaller link is fixed means crank is fixed. It's the 2nd inversion, not 3rd inversion.
Neeraj said:
9 years ago
D is the answer crank fixed which is smaller than all it is the 2nd inversion.
Ankush said:
9 years ago
I think option D is a right answer.
Atul said:
8 years ago
D is the right answer, because Whitworth quick return mechanism is obtained when the crank is fixed and the crank is the smallest link also, So, D will be the right answer.
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