Recent questions in IES Objectives-2

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The accelerometer is used as a transducer to measure earthquake in Richter scale.

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Which of the following are responsible for occurrence of critical or whirling speed of shaft?

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Linear vibration analysis has the greatest advantage because of

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The equation of free vibration of a system is

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The first critical speed of an automobile running on a sinusoidal road is calculated by

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Critical speed is expressed as

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What is the dangerous speed of the rotor?

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Transmissibility ratio will be equal to unity for all values of

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What would be the time period of oscillations?

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If it is free to roll on the rough horizontal surface without slipping, what will be its natural frequency?

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If the mass is slightly displaced and left, then the frequency of oscillations in rad/s may be given as:

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The system is having a damper whose coefficient of viscous damping is 8 N-s/m. The system is:

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The nature frequency of the mass m would be

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The critical speed of shaft depends on

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In case of free vibrations with viscous damping, the damping force is proportional to

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The system to be critically damped, the damping coefficient is

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Large field guns, which come to initial position after firing in shortest possible time, are

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Consider the following statements. Transmissibility of vibrations:

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Rayleigh’s method of computing the fundamental natural frequency is based on

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Damping force is proportional to the amplitude

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