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In a artesian well, when water level falls below the top of confined aquifer, then this type of well is known as ______

In a artesian well, when water level falls below the top of confined aquifer, then this type of well is known as ______ Correct Answer combined artesian gravity well

In an artesian well, when water level falls below the top of confined aquifer, the flow pattern close to the well is similar to that of gravity well. Hence, it is also known as combined artesian gravity well.

Related Questions

Consider the following statements in respect of ground water aquifers: 1. Specific storage is specific capacity per unit depth of the aquifer. 2. Specific capacity is storage coefficient per unit aquifer depth. 3. Specific capacity is a constant for a given well. 4. For one-dimensional flow in a confined aquifer between two water bodies, the piezometric head line in the aquifer is a straight line. Which of the above statements are correct?
Which of the following statements are correct as regards aquifer characteristics? 1. The storage coefficient is the volume of water released from storage from the entire aquifer due to unit depression of Piezometric head. 2. The storage coefficient is the same as the specific yield for water table aquifer. 3. Both the aquifer constants, viz. storage coefficient S and Transmissivity T are dimensionless numbers. 
In an aquifer extending 150 hectare, the water table was 20 m below ground level. Over a period of time the water table dropped to 23 m below the ground level. If the porosity of the aquifer is 0.40 and the specific retention is 0.15, what is the change in groundwater storage of the aquifer?
For an unconfined aquifer, the specific yield is 20%, specific retention is 15%, and permeability is 35 m/day. Consider the following statements: 1. The porosity of the aquifer is 35%. 2. The transmissibility is 35 m2/day. 3. The volume of water lost from storage per metre drop in the water table per 100 km2 area of the aquifer is 20 million m3. Which of the above statements are correct?
In a groundwater field test, a tracer took 8 hours to travel between two observation wells which are 56 m apart. The difference in water table elevations in these wells was 0.70 m. The volume of the void of the aquifer is 30% of the total volume of the aquifer. What is the hydraulic conductivity of the aquifer, if the dynamic viscosity of water is 0.995 × 10.8 Ns/m2 ?
A well 3 meters in diameter has its normal water level 3 meters below the ground level. By pumping water level in the well is depressed to 10 meters below the ground level. In 4 hours the water rises by 5 meters. Calculate the specific yield of the well.
If the impermeable area overlies the aquifer, pressure could cause it to become a confined aquifer.
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the fouralternatives.
Job performance is ______ by a number of factors. Motivation alone does not lead to increased performance. Ability and technology moderates the relationship
between motivation and performance. The higher the levels of ability and motivation the ______ the level of performance will be. However, increasing motivation
beyond an ______ level tends to ______ a dysfunctional result because it is ______ by an increased level of anxiety.
motivation and performance. The higher the levels of ability and motivation the ______ the level of performance will be.
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. Job performance is ______ by a number of factors. Motivation alone does not lead to increased performance. Ability and technology moderates the relationship between motivation and performance. The higher the levels of ability and motivation the ______ the level of performance will be. However, increasing motivation beyond an ______ level tends to ______ a dysfunctional result because it is ______ by an increased level of anxiety. However, increasing motivation beyond an ______ level
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives. Job performance is ______ by a number of factors. Motivation alone does not lead to increased performance. Ability and technology moderates the relationship
between motivation and performance. The higher the levels of ability and motivation the ______ the level of performance will be. However, increasing motivation
beyond an ______ level tends to ______ a dysfunctional result because it is ______ by an increased level of anxiety. because it is ______ by an increased level of anxiety.