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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 6
26.
A railway bridge is an example of a machine.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Scott Russell's mechanism is made up of sliding pair.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following is an example of a higher pair ?
Toothed gearing
Belt and rope drive
Ball and roller bearing
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by
ωR cos θ
ω(R - r1)cos θ
ω(R - r1)sin θ
ωr1 sin θ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which of the following property of the instantaneous centre is correct ?
A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.
The two rigid links have no linear velocity relative to each other at the instantaneous centre.
The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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