Q. For an oscillatory machine, the force can be expressed as _________

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Q. The equation for natural frequency of system as suggested by Barken is __________

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Q. The co-efficient of elastic uniform compression of soil depends on which of the following factor?

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Q. On calculating the natural frequency of the system, Barken did not take into account of __________

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Q. What are the methods for determining the natural frequency of the foundation of soil system?

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Q. In a damped force vibratory system, the support is derived by _______

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Q. The size of co-vibrating body of soil depends on _________

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Q. The mass of co-vibrating soil is called __________

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Q. Recommended design value for permissible load on soil under the action of static load, for rock type soil group is ________

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Q. The bulb of pressure concept for calculating the apparent mass of soil was introduced by _________

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Q. An aim of the foundation designer should be such that the frequency ratio f/fn is either less than _________

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Q. The method of Barken is based on the assumption of ___________

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Q. The rotation of foundation about y axes is known as _____________

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Q. Barken’s method is used in ___________ places.

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Q. If the combined C.G. of the machine and foundation lies in the same vertical line, then the twisting modes are _________

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Q. The value of kx for the elastic support of soil is given by which of the following expression?

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Q. The permissible amplitude should not exceed ___________ for reciprocating machine.

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Q. The methods of Pauw and Balakrishna Rao are based on ___________ assumptions.

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Q. According to Barken, the value of the coefficient of elastic uniform shear is taken as __________

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Q. If foundation block is supported by an elastic pad of contact area A and thickness t, the value of stiffness factor for vertical motion is given by which of the following expression?

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