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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 9
26.
The critical speed of a shaft depends upon its
mass
stiffness
mass and stiffness
stiffness and eccentricity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Which of the following mechanism is an approximate straight line motion mechanism?
Watt's mechanism
Grasshopper mechanism
Robert's mechanism
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A shaft carrying two rotors at its ends will have
no node
one node
two nodes
three nodes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will
return to equilibriumposition without oscillation
oscillate with increasing time period
oscillate with decreasing amplitude
oscillate with constant amplitude
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The friction experienced by a body, when at rest, is known as static friction.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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