Differentiate between earthen dam and gravity dam with respect to seepage , foundation , construction and maintenance
Description : Seepage through foundation in an earthen dam is controlled by providing (A) Rock toe (B) Horizontal blanket (C) Impervious cut off (D) Chimney drain
Last Answer : Answer: Option C
Description : For the upstream face of an earthen dam, the most adverse condition for stability of slope is (A) Sudden drawdown (B) Steady seepage (C) During construction (D) Sloughing of slope
Last Answer : Answer: Option A
Description : Seepage through embankments in an earthen dam is controlled by (A) Drainage filters (B) Relief wells (C) Drain trenches (D) Provision of downstream berms
Description : Explain with neat sketch Phreatic line in earthen dam with pressure head at different point and show construction points of this line.
Last Answer : Procedure for locating the Phreatic line i) Draw an earthen dam having upstream face AB with water surface. ii) On water surface measure distance BC = 0.3 L C is starting pt of base parabola. Let F' ... parabola i.e. Phreatic line. viii) Here G,Q1,Q2,Q3,Q4 and B represent Phreatic line
Description : Name the longest earthen dam of the World. a) Hirakud Dam b) Singur Dam c) Indravati Dam d) Mettur Dam
Last Answer : a) Hirakud Dam
Description : Which of the following spillways is least suitable for an earthen dam? (A) Ogee spillway (B) Chute spillway (C) Side channel spillway (D) Shaft spillway
Description : Explain phreatic line in earthen dam with a sketch.
Last Answer : Phreatic line in earthen dam1.The line in earthen dam section below which there is positive hydrostatic pressure exists. Phreatic line separates the dry and wet part of earthen dam body as it acts as boundry ... toe material. Hence, a rock toe is necessary to avoid removal of toe portion of dam.
Description : Draw a labelled sketch of Earthen dam
Last Answer : Earthen dam
Description : The critical exist gradient of seepage water in soils, is (A) Directly proportional to the voids ratio (B) Inversely proportional to the specific gravity (C) Directly proportional to the specific gravity (D) None of these
Last Answer : (D) None of these
Description : The critical exist gradient of seepage water in soils, increases with (A) An increase in specific gravity (B) A decrease in specific gravity (C) A decrease in void ratio (D) Both (a) and (c)
Last Answer : Answer: Option D
Description : As compared to gravity dams, earthen dams (A) Are costlier (B) Are less susceptible to failure (C) Require sound rock foundations (D) Require less skilled labour
Description : The uplift pressure on a dam can be controlled by (i) Constructing cut-off under upstream face (ii) Constructing drainage channels between the dam and its foundation (iii) By pressure grouting in foundation The correct answer is ... ) and (ii) (C) Both (i) and (iii) (D) (i), (ii) and (iii)
Description : Differentiate between any five of the following. (i) Artery and vein (ii) Hard water and soft water (iii) E-mail and Snail mail (iv) Apes and monkey (v) Hydrostatics and hydrodynamics (vi) Comet and ... (vii) Barrage and dam (viii) Electron and hole (ix) Isobars and isotopes (x) Autopsy and biopsy
Last Answer : Answers: (i) Artery and vein: Arteries: Muscular blood vessels that carry blood away from the heart. All arteries, with the exception of the pulmonary and umbilical arteries, carry oxygenated blood ... to determine cause of death Biopsy: Removal and study of a tissue sample for diagnostic purposes
Description : Two contributors of electronic console failures are heat and vibration. To combat some of their effects, preventive maintenance procedures should include ______________. A. systematic rotation of circuit cards with those ... bolts and changing of the air in the control room D. all of the above
Last Answer : Answer: B
Description : Which one of the following is the highest gravity dam in the world? (1) Beas Dam (2) Nangal Dam (3) Bhakra Dam (4) Hirakud Dam
Last Answer : (3) Bhakra Dam Explanation: Currently, the tallest dam in the world is the Nurek Dam, an embankment dam in Tajikistan at 300 m high. The tallest arch dam is the recently completed 292 ... under construction in China. Natural landslide dams are also quite competitive in height but not listed here.
Description : Which is the highest gravity dam in the world
Last Answer : Bhakra Dam
Description : A concrete gravity dam built on Satluj river. a) Bhakra Dam b) Salal Dam c) Rana Pratap Sagar Dam d) Dantiwada Dam
Last Answer : a) Bhakra Dam
Description : 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 A) (i) and (iii) (B) (i) and (iv) (C) (ii) and (iii) (D) (ii) and (iv)
Description : The maximum permissible eccentricity for no tension at the base of a gravity dam is (A) B/2 (B) B/3 (C) B/4 (D) B/6
Description : When the reservoir is full, the maximum compressive force in a gravity dam is produced (A) At the toe (B) At the heel (C) Within the middle third of base (D) At centre of base
Description : The major resisting force in a gravity dam is (A) Water pressure (B) Wave pressure (C) Self-weight of dam (D) Uplift pressure
Description : Which one of the following is the highest gravity dam in the world ? (1) Beas Dam (2) Nangal Dam (3) Bhakra Dam (4) Hirakud Dam
Description : How long have construction workers been laying sheet of plastic on the ground before laying the foundation?
Last Answer : https://en.wikipedia.org/wiki/Vapor_barrier
Description : Dynamite is a tool that can be used to cut down trees. To cut a tree 18 inches in diameter requires five sticks of dynamite: one on the north, south, east and west sides of the tree, and the ... you instruct the diver to put the fifth stick of dynamite if you wanted the tree to fall north? -Riddles
Last Answer : It doesn't matter where the fifth stick is placed, since the tree won't fall in any direction. Being wood, it will float and rise to the surface.
Description : Why do people oppose the construction of Tehri Dam on the river Ganga and Sardar sarover project on the river Narmada. (Or) Mention three disadvantage of producing hydroelectricity by ... construction of dams for production of electricity adversely affects the environment of that place. -Biology
Last Answer : Answer. Large area is required to build the dam that result rehabilitation of displaced people.Large eco-systems are destroyed when submerged under the water in dams.The vegetation which is submerged rots ... and gives rise to large amounts of methane gas which leads to a green-house effect.
Description : When was the Hoover dam construction completed?
Last Answer : In 1936.
Description : What body of water was formed by the construction of the glen canyon dam?
Last Answer : lake powell -apex
Description : True to false after the construction of the Ithai Dam, water levels in the lake lowered, severely impacting fishing in Athaphums?
Last Answer : yes
Description : The construction of Tehri dam is done across which river
Last Answer : Bhagirathi
Description : Flood can be controlled by: a) Afforestation (b) Construction of dam (c) Both a & b (d) None of these
Last Answer : (c) Both a & b
Description : Before constructing a dam, the factor to be considered for controlling sedimentation, is (A) Selection of dam site (B) Construction of check dams (C) Providing vegetation screens (D) All the above
Last Answer : (D) All the above
Description : The road foundation for modern highways construction, was developed by (A) Tresguet (B) Telford (C) Tresguet and Telford simultaneously (D) Telford and Macadam simultaneously
Description : The construction of Tehri dam is done across which river- —
Description : Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks? (A) When the dock is empty (B) When the dock is empty with the ship of maximum tonnage (C) When the dock is full of water (D) When the dock is dry and is under construction
Last Answer : (C) When the dock is full of water
Description : For the construction of flyovers in sandy soils, the type of foundation provided, is (A) Strap footing (B) Raft footing (C) Combined footing (D) Pier footing
Description : Pick up the correct statement from the following: (A) The cost of square rooms is less (B) The expenditure on the foundation and roof for the double storeyed building is nearly half of that ... cost of construction of a house may be minimised by restricting the height floors (D) All the above
Description : For dam construction the size of aggregates are (a) 40mm (b) 50mm (c) 60mm (d) 75mm
Last Answer : (a) 40mm
Description : Suggest the type of cement used for the following : (i) For modular construction where form work needs to be removed early for re-use. . (ii) Mass concreting such as construction of dam. (iii) Decorative works in external surfaces of building. (iv) Cementing the oil well.
Last Answer : i) For modular construction where form work needs to be removed early for reuse. – Rapid Hardening Cement ii) Mass concreting such as construction of dam. – Low heat cement. iii) Decorative works in external surfaces of building – Coloured cement. iv) Cementing the oil well. – Oil Well Cement.
Description : What is the most commom sign/symptom of hemorrhoids? (a) Bleeding (b) Pain (c) Seepage (d) Pruritus
Last Answer : Ans: A
Description : Petroleum deposits are detected by the. (A) Oil seepage at the surface of the earth (B) Measurement of density, elasticity and magnetic & electric properties of the rock in the crust of the earth (C) Age & nature of rocks inside the crust of the earth (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following is the advantage of sprinkler irrigation? a. No loss of water by seepage b. No loss of water by evaporation c. Options a and b d. Only option b
Last Answer : c. Options a and b
Description : If water table is comparatively high, the irrigation canal becomes useless, due to a. Large amount of seepage b. Water logging of the cultivated areas c. Uncertain water demand d. All the above
Last Answer : d. All the above
Description : Darcy's law is applicable to seepage if a soil is (A) Homogeneous (B) Isotropic (C) Incompressible (D) All the above
Description : Flow net is used for the determination of (A) Quantity of seepage (B) Hydrostatic pressure (C) Seepage pressure (D) All the above
Description : A critical hydraulic gradient may occur when (A) Flow is in upward direction (B) Seepage pressure is in upward direction (C) Effective pressure is zero (D) All the above
Description : The seepage exit gradient in a soil is the ratio of A) Total head to the length of seepage (B) Flow line to slope (C) Head upstream to that at downstream (D) Head loss to the length of the seepage
Description : The quantity of seepage of water through soils is proportional to (A) Coefficient of permeability of soil (B) Total head loss through the soil (C) Neither (a) nor (b) (D) Both (a) and (b)
Description : When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. ... known (A) Quick condition (B) Boiling condition (C) Quick sand (D) All the above
Description : A flow net may be utilised for the determination of (A) Exit gradient (B) Seepage (C) Hydrostatic pressure (D) All the above
Description : The seepage force in a soil, is (A) Perpendicular to the equipotential lines (B) Proportional to the exit gradient (C) Proportional to the head loss (D) All the above