Recent questions in IES Objectives-2

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The displacement of the shaft at a speed which is 90% of critical speed in microns is

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The distance of node from the rotor of lower moment of inertia is

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The mass of the rod is ‘m’ and length ‘l’ the natural frequency of this rod in Hz for small amplitude is

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A shaft carries a weight W at the center

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A system has viscous damped output. There is non – steady – state lag if input is

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During tensional vibration of a shaft, the node is characterized by the

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The resonant conditions of the base – excited vibrations, are determined by the

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Consider a harmonic motion

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Assume that each spring constant is K. the strain energy stored spring (1) is

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The critical speed of a shaft is affected by the

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Match List – I (Applications) List – II (Features of vibration)

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The pitching of a ship in the ocean is an oscillatory periodic motion

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The equivalent spring stiffness of the two springs is nearly

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The damping factor is

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In a multi – rotor system of tensional vibrations, maximum number of nodes that can occur is

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The critical speed of a shaft is affected by the

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In a force vibration with viscous damping, maximum amplitude occurs when forced frequency is

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The value of the natural frequency obtained by Rayleigh’s method

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Its amplitude of vibration will be

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If this flywheel weight is reduced to half of its original weight the whirling speed will

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Recent questions in IES Objectives-2

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