NEW
Font size
WorksheetsGround Water Hydrology
Total questions: 12
Worksheet time: 6mins
What is an aquifer?
A type of surface water body
An underground reservoir inside rocks
A method of water purification
A type of soil erosion
What is the main difference between confined and unconfined aquifers?
Unconfined aquifers are under pressure
Confined aquifers are sandwiched between non-permeable layers
Unconfined aquifers are found only in deserts
Confined aquifers are always dry
What does drawdown in a well refer to?
The depth of the well
The rate of water flow into the aquifer
The difference between pumping and static water levels
The total amount of water in the aquifer
What type of aquifer allows water to expand and contract freely?
Permeable aquifer
Artesian aquifer
Unconfined aquifer
Confined aquifer
What is artesian water?
Water that is always stagnant
Water that is treated for drinking
Water that flows under pressure from a confined aquifer
Water that is collected from surface runoff
What is the purpose of measuring drawdown in a well?
To calculate the temperature of the water
To ensure the source water is adequate
To assess the soil quality
To determine the depth of the well
What does the term 'permeability' refer to in the context of aquifers?
The total volume of water in an aquifer
The pressure of water in a confined aquifer
The ability of soil to retain water
The ability of soil to allow water to pass through
What is specific capacity of a well?
The total volume of water it can hold
The rate at which water can be pumped out
The pressure of the water in the aquifer
The depth of the well
What happens to the pressure in a confined aquifer when new water enters?
The pressure decreases
The pressure remains constant
The pressure builds up
The pressure is irrelevant
What is the primary source of recharge for unconfined aquifers?
Industrial wastewater
Groundwater from confined aquifers
Rainfall and surface water
Desalination plants
How does over-extraction of water from an aquifer affect its sustainability?
It improves the recharge rate
It increases the water quality
It can lead to land subsidence
It has no effect on the aquifer
What is the significance of the water table in relation to aquifers?
It represents the upper surface of saturated ground
It is irrelevant to aquifer management
It indicates the depth of the aquifer
It determines the temperature of the water
