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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 1
1.
The ratio of the actual damping coefficient to the critical damping coefficient is called damping factor.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to
zero
one
π/2
π
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to
0.2
0.4
0.6
0.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
For high speed engines, the cam follower should move with
uniform velocity
simple harmonic motion
uniform acceleration and retardation
cycloidal motion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
In a coupling rod of a locomotive, each of the four pairs is a __________ pair.
sliding
turning
rolling
screw
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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