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PSC Civil Engg: Hydrology Quiz 1
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Question 1
Consider the following with respect to ‘double-mass curve’:
1). Plot of accumulated rainfall with respect to two chronological orders
2). Plot for estimating multiple missing rainfall data
3). Plot for checking the consistency of the rainfall data
4). Plot of accumulated annual rainfall of a station vs. accumulated rainfall of a group of stations
Which of these statements are correct?
1). Plot of accumulated rainfall with respect to two chronological orders
2). Plot for estimating multiple missing rainfall data
3). Plot for checking the consistency of the rainfall data
4). Plot of accumulated annual rainfall of a station vs. accumulated rainfall of a group of stations
Which of these statements are correct?
Question 2
A tubewell of 30 cm diameter penetrates fully into an artesian aquifer. The artesian length is 15 m. the yield from the well under a drawdown of 3 m through the aquifer consisting of sand of effective size of 0.2 mm and coefficient of permeability of 50 m/day, with radius of drawdown of 15 m, is nearly
Question 3
A 252 km2 catchment area has a 6 hr UH which is a triangle with time base of 35 hours. What is the peak discharge of the DRH due to 5 cm effective rainfall in 6 hr from that catchment?
Question 4
probability of a 10 years flood to occur at least once in the next 5 years is
Question 5
Which one of the following flood routing methods involve the concepts of wedge and prism storages?
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Jul 2ESE & GATE CE
