Mechanical Engineering - Theory of machines

36.
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)
μ W R
μ W R
μ W R
μ W R
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
If the damping factor for a vibrating system is unity, then the system will be
over damped
under damped
critically damped
without vibrations
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the trans-missibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)
less than unity
equal to unity
greater than unity
zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
When a point at the end of a link moves with constant angular velocity, its acceleration will have
radial component only
tangential component only
coriolis component only
radial and tangential components both
Answer: Option
Explanation:
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40.
The time taken by a particle for one complete oscillationis known as periodic time.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.