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Match the following:   Curve   Nature of damping I Curve (a) A Un - Damped II Curve (b) B Over Damped III Curve (c) C Under Damped IV Curve (d) D Critically Damped
Which of the following methods are used for producing damping torque in analog instruments? 1) Air friction damping 2) Fluid friction damping 3) Eddy current damping 4) Electromagnetic damping
Consider the following types of damping: 1. Air-friction damping 2.Fluid-friction damping 3.Eddy-current damping PMMC type instruments use which of the above?
Consider the following statement In damped oscillation, the amplitude of oscillation decreases exponentially due to damping forces. In damped oscillation, the frequency of the oscillation is slightly reduced.   Which of the following statement is correct?
Consider the aircraft with weight of 1234 kg. Find the approximate value of the damping ratio if time taken by system for damping is minimum.
A vehicle suspension system consists of a spring and a damper. The stiffness of the spring is 3.6 kN/m and the damping constant of the damper is 400 Ns/m. If the mass is 50 kg, then the damping factor (d ) and damped natural frequency (fn), respectively, are
Find critical damping coefficient if damping ratio is 0.5 and damping coefficient is 1.1.
Simplify : $${{{5 \over 3} \times {7 \over {51}}{\text{ of }}{{17} \over 5} - {1 \over 3}} \over {{2 \over 9} \times {5 \over 7}{\text{ of }}{{28} \over 5} - {2 \over 3}}}$$
If the damping factor is less than the damping factor at critical damping, the time response of the system is ___________
The unit step response of a second order system is = 1-e-5t-5te-5t . Consider the following statements: 1. The under damped natural frequency is 5 rad/s. 2. The damping ratio is 1. 3. The impulse response is 25te-5t. Which of the statements given above are correct?