Q. In a concrete gravity dam with a vertical upstream face the stabilising force is provided by the ___________________

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Q. What is the value of horizontal destabilizing force caused by the formation of waves in a storage reservoir having a fetch of 52 km due to high wind of 172 km/h?

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Q. Calculate the value of free-board that should be provided for a reservoir having a wind velocity of 92 km/h and it extends up to 18 km upstream.

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Q. The upward acceleration of dam due to seismic activity will ________________________

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Q. What is the average value of acceleration that is sufficient for high dams in seismic zones?

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Q. What is Von Karman’s formula for hydrodynamic force (Pₑ)?

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Q. The factor of safety against overturning generally varies between ___________

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Q. What is the maximum permissible tensile stress for high concrete gravity dam under worst conditions?

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Q. Which failure occurs when the net horizontal force above any plane in the dam or at the base of the dam exceeds the frictional resistance developed at that level?

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Q. Which failure occurs when the minimum stress exceeds the allowable compressive stress of the dam material?

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Q. Tension cracks in the dam may sometimes lead to the failure of the structure by?

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Q. The major principal stress at the toe of a gravity dam under full reservoir condition neglecting the tailwater effect is given by ____________________

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Q. Which of the following criteria has to be satisfied for no tension at any point on a gravity dam?

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Q. The bottom portion of a concrete or a masonry gravity dam is usually stepped in order to _______

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Q. The governing compressive stress in a concrete gravity dam which should not be allowed to exceed the permissible value of about 3000 KN/m² while analyzing full reservoir case is ____________________

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Q. If the uplift increases and the net effective downward force reduces, the resultant will shift towards the toe.

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Q. When the reservoir is empty, the single force acting on it is the self-weight of the dam which acts at a distance of ____________

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Q. When the reservoir is empty, the maximum vertical stress equal to ________________

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Q. The two-dimensional stability analysis of gravity dams proves better for U-shaped valleys than for V-shaped valleys.

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Q. Calculate the value of minimum base width for an elementary triangular concrete gravity dam supporting 72 m height of reservoir water and full uplift? (Take specific gravity of concrete as 2.4 and coefficient of friction as 0.7)

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