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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 2
6.
A reed type tachometer use the principle of
longitudinal vibration
torsional vibration
transverse vibration
damped free vibration
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where δ = Static deflection of a simply supported shaft due to the point load)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
When the sleeve of a Porter governor moves upwards, the governor speed
increases
decreases
remains unaffected
first increases and then decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)
ω2 x OQ
ω2 x OQ sin θ
ω2 x OQ cos θ
ω2 x OQ tan θ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard ?
All points of the disc have the same velocity
The centre of the disc has zero acceleration
The centre of the disc has centrifugal acceleration
The point on the disc making contact with the plane surface has zero acceleration
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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