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MCQs 1: An artesian aquifer is the one where______________?

water surface under the ground is at atmospheric pressure water is under pressure between two impervious strata water table serves as upper surface of zone of saturation none of the above
Answer Explanation

MCQs 2: A multipurpose reservoir is the one which is_________________?

designed for one purpose but serves more than one purpose planned and constructed to serve various purposes both (A. and (B. none of the above
Answer Explanation

MCQs 3: The water stored in the reservoir below the minimum pool level is called_______________?

useful storage dead storage valley storage surcharge storage
Answer Explanation

MCQs 4: Trap efficiency of a reservoir is a function of_______________?

capacity/inflow ratio capacity/outflow ratio outflow/inflow ratio none of the above
Answer Explanation

MCQs 5: 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_______________?

0 and wH212 wH2/2and wH2/3 wH and 0 OandwII
Answer Explanation

MCQs 6: The uplift pressure on the face of a drainage gallery in a dam is taken as_________________?

hydrostatic pressure at toe average of hydrostatic pressure at toe and heel two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel none of the above
Answer Explanation

MCQs 7: Hydrodynamic pressure due to earthquake acts at a height of_________________?

3H/47I above the base 3H747t below the water surface 4H/371 above the base 4H737t below the water surface where H is the depth of water
Answer Explanation

MCQs 8: When the reservoir is full, the maximum compressive force in a gravity dam is produced______________?

at the toe at the heel within the middle third of base at centre of base
Answer Explanation

MCQs 9: For wave action in dams, the maximum height of freeboard is generally taken to be equal to_______________?

0.5 hw 0.75 hw 1.25 hw 1.50 hw
Answer Explanation

MCQs 10: The most suitable material for the central impervious core of a zoned embankment type dam is_______________?

clay coarse sand silty clay clay mixed with fine sand
Answer Explanation

MCQs 11: Seepage through foundation in an earthen dam is controlled by providing___________________?

rock toe horizontal blanket impervious cut off chimney drain
Answer Explanation

MCQs 12: Which of the following spillways is least suitable for an earthen dam ?

ogee spillway chute spillway side channel spillway shaft spillway
Answer Explanation

MCQs 13: In a chute spillway, the flow is usually____________________?

uniform subcritical critical super critical
Answer Explanation

MCQs 14: If there are two canals taking off from each flank of a river, then there will be____________________?

one divide wall and one undersluice one divide wall and two undersluices two divide walls and one undersluice two divide walls and two undersluices
Answer Explanation

MCQs 15: The main function of a divide wall is to_______________?

control the silt entry in the canal prevent river floods from entering the canal separate the undersluices from weir proper provide smooth flow at sufficiently low velocity
Answer Explanation

MCQs 16: As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at_____________?

lower level higher level same level any of the above depending on the design
Answer Explanation

MCQs 17: According to Khosla’s theory, the exit gradient in the absence of a downstream cutoff is_____________?

0 unity infinity very large
Answer Explanation

MCQs 18: The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is________________?

less than 1 equal to 1 greater than 1 equal to zero
Answer Explanation

MCQs 19: As per Lacey’s theory, the silt factor is_________________?

directly proportional to average par¬ticle size inversely proportional to average par¬ticle size directly proportional to square root of average particle size not related to average particle size
Answer Explanation

MCQs 20: Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

canal fall canal outlet canal escape canal regulator
Answer Explanation

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