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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Q. The two natural frequencies representing the couple motion, in sliding and rocking motion is ___________

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