Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 11)
11.
The pair is known as a higher pair, when the relative motion between the elements of a pair is
Discussion:
28 comments Page 1 of 3.
Shyam said:
7 years ago
Whatever @Ajay Tyagi said is correct.
Rolling only means one degree of freedom. But higher pair is a two degree of freedom.
Ex: wheel Rolling on a Surface,
The Correct answer is = D.
Rolling only means one degree of freedom. But higher pair is a two degree of freedom.
Ex: wheel Rolling on a Surface,
The Correct answer is = D.
(1)
Jagadeesh said:
8 years ago
I agree @Ajay Tyagi.
Akash said:
8 years ago
Answer D is correct:.
Refer to "Relative" mentioned in the question. In pure rolling relative velocity will be zero.
Refer to "Relative" mentioned in the question. In pure rolling relative velocity will be zero.
Soumik chakraborty said:
8 years ago
I think C is correct.
(1)
Ranganath said:
8 years ago
C is the correct option as higher pair involves point contact.
Ashutosh said:
8 years ago
D is the correct answer.
If we consider a cam follower (higher pair) under high speed, then the motion between them is partly turning and partly Sliding.
If we consider a cam follower (higher pair) under high speed, then the motion between them is partly turning and partly Sliding.
Amirmt said:
8 years ago
D is the correct answer as in the case of gears.
Dhanesh gaur said:
8 years ago
I think the answer is (c).
Because higher pair is where there is line or point contact. If there is partly sliding that means surface contact and where surface contact there will be a lower pair not a higher pair.
Because higher pair is where there is line or point contact. If there is partly sliding that means surface contact and where surface contact there will be a lower pair not a higher pair.
Neeraj said:
9 years ago
Agree with the answer Pure rolling - lower pair rolling - Higher pair.
Ajay tyagi said:
9 years ago
D is right. Because in c option, pure rolling is mentioned. Pure rolling means one degree if freedom. i.e Lower pair and partly rolling nd sliding i.e. two degrees of freedom i.e.higher pair. Point or line contact in hp is a general criterion.
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