1
GATE ME 2005
MCQ (Single Correct Answer)
+2
-0.6
In a spring-mass system, the mass is 0.1 kg and the stiffness of the spring is 1 kN/m. By introducing a damper, the frequency of oscillation is found to be 90% of the original value. What is the damping coefficient of the damper?
2
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
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 $$\, \times \,$$ 25 mm. Assume the mass of the cantilever to be negligible and Esteel = 200 Gpa. If the lateral vibration of this system is critically damped using a viscous damper, the damping constant of the damper is
3
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
A uniform stiff rod of length $$300$$ $$mm$$ and having a weight of $$300$$ $$N$$ is pivoted at one end and connected to a spring at the other end. For keeping the rod vertical in a stable position the minimum value of spring constant $$K$$ needed is
4
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
A uniform rigid slender bar of mass $$10$$ $$kg.$$ is hinged at the left end is suspended with the help of spring and damper arrangement as shown in the figure where $$K = 2kN/m,$$ $$C =500Ns/m$$ and the stiffness of the torsional spring $${K_\theta }$$ is 1 kN/m/rad. Ignore the hinge dimensions.
The damping coefficient in the vibration equation is given by
Questions Asked from Vibrations (Marks 2)
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GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude