GATE-ES SERIES Water-wastewater-treatment-and-management
Groundwater Flow
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
3
2021 Chapter Questions 3 MCQs
01
PYQ 2021
medium
water-wastewater-treatment-and-management ID: gate-es-
If is the depth of an aquifer through which water is flowing, then the relationship between permeability and transmissibility (also known as transmissivity) is given by _______.
1
2
3
4
02
PYQ 2021
medium
water-wastewater-treatment-and-management ID: gate-es-
A water jet discharging from a 4 cm diameter orifice has a diameter of 3.5 cm at its vena contracta. The coefficient of velocity is defined as the ratio of the actual velocity of the jet at vena contracta to the theoretical velocity of the jet. If the coefficient of velocity is 0.98, the coefficient of discharge for the orifice will be _______ (rounded off to two decimal places).
03
PYQ 2021
medium
water-wastewater-treatment-and-management ID: gate-es-
In a field test of a geological formation of permeable soil (porosity = 20 %), the hydraulic gradient was found to be 2 %. The actual seepage velocity of the flow was found to be 0.0025 m/s. Assume that the flow is in the laminar regime. The permeability of the aquifer is _______ m/s (rounded off to three decimal places).