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GATE Prev Year : Vibrations Test-3
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Question 1
Which statement regarding damping is correct?
Question 2
When a cylinder is located in a Vee-block, the number of degrees of freedom which are arrested is
Question 3
A rod of mass 4Kg oscillates 24 times in a minute when suspended. What will be the moment of inertia at centre of gravity located about 15 cm from support point?
Question 4
A vibrating machine is isolated from the floor using springs. If the ratio of excitation frequency of vibration of machine to the natural frequency of the isolation system is equal to 0.5, the transmissibility of ratio of isolation is
Question 5
A mass M, of 20 kg is attached to the free end of a steel cantilever beam of length 1000 mm having a cross-section of 25 ×25 mm. Assume the mass of the cantilever to be negligible and E steel = 200GPa . If the lateral vibration of this system is critically damped using a viscous damper, the damping constant of the damper is
Question 6
What is vibration isolator?
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