The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is

Related MCQs

• The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is
• When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be (where w is unit weight of water and H is the depth of water.)
• Presence of tail water in a gravity dam i) increases the principal stress ii) decreases the principal stress iii) increases the shear stress iv) decreases the shear stress The correct answer is
• Rate of evaporation from a water surface increases if i) difference of vapour pressure between water and air is increased ii) velocity of wind is decreased iii) concentration of soluble solids in water is decreased The correct answer is
• The uplift pressure on the face of a drainage gallery in a dam is taken as
• When the reservoir is full, the maximum compressive force in a gravity dam is produced
• The floor of the aqueduct is subjected to uplift pressure due to
• The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after
• Interception losses are due to i) evaporation ii) transpiration iii) stream flow The correct answer is
• Hydrodynamic pressure due to earthquake acts at a height of