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Questions and Answers
A well can be dug to a depth of about 15 ______ and can have the greatest diameter a space may allow
A well can be dug to a depth of about 15 ______ and can have the greatest diameter a space may allow
meters
Driven Wells are usually the ______ expensive type of well construction
Driven Wells are usually the ______ expensive type of well construction
least
Bored Wells are usually dug with ______ augers
Bored Wells are usually dug with ______ augers
earth
Once the pump is turned on, the water table is lowered, creating a ______ around the well
Once the pump is turned on, the water table is lowered, creating a ______ around the well
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Driven Wells can be driven to a depth of ______ meters (50 ft)
Driven Wells can be driven to a depth of ______ meters (50 ft)
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Beton Welly may be driven to a depth of ______ m
Beton Welly may be driven to a depth of ______ m
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Beton Welly consists of a series of convected lengths of ______ driven by repeated impacts into the ground
Beton Welly consists of a series of convected lengths of ______ driven by repeated impacts into the ground
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Bored Wells are dug with ______ augers, usually less than 30 m (100 ft) deep
Bored Wells are dug with ______ augers, usually less than 30 m (100 ft) deep
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Diameter ranges from ______ to 30 inches in Drawdown
Diameter ranges from ______ to 30 inches in Drawdown
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Bored Wells are used when the earth to be bored is ______-free and will not cave in
Bored Wells are used when the earth to be bored is ______-free and will not cave in
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The water table is lowered in the ______ of the well, and the resulting water-table is known as the 'cone of depression'
The water table is lowered in the ______ of the well, and the resulting water-table is known as the 'cone of depression'
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The decrease in the water level at and in the ______ of the well is known as drawdown
The decrease in the water level at and in the ______ of the well is known as drawdown
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At ______ 1, a well can serve as a protectable spring water source for houses
At ______ 1, a well can serve as a protectable spring water source for houses
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The cone of depression is formed when the pumping of the ______ starts
The cone of depression is formed when the pumping of the ______ starts
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The water level is lowered, creating a ______ around the well
The water level is lowered, creating a ______ around the well
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Wells constructed by percussion or rotary-______ machines can measure up to 300 m (984 ft).
Wells constructed by percussion or rotary-______ machines can measure up to 300 m (984 ft).
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Drilled Wells have a lower risk of ______ due to their depth and use of continuous casing.
Drilled Wells have a lower risk of ______ due to their depth and use of continuous casing.
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A ______ of Depression is created around the well once the pumping of the well starts.
A ______ of Depression is created around the well once the pumping of the well starts.
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The ______ of the site determines the type of equipment required for Drilled Wells.
The ______ of the site determines the type of equipment required for Drilled Wells.
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Driven Wells are constructed by driving a series of ______ lengths of pipe into the ground.
Driven Wells are constructed by driving a series of ______ lengths of pipe into the ground.
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The water supply system consists of the water ______ pipe, water distributing pipe and the necessary branch pipes, fittings, valves and al appurtenances required for the supply of potable water.
The water supply system consists of the water ______ pipe, water distributing pipe and the necessary branch pipes, fittings, valves and al appurtenances required for the supply of potable water.
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A system with a source, a reservoir, a piped ______ network and household taps is generally suited for densely populated urban areas.
A system with a source, a reservoir, a piped ______ network and household taps is generally suited for densely populated urban areas.
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The water supply system delivers to an average of 100 ______ with 1 faucet per 4 to 6 households.
The water supply system delivers to an average of 100 ______ with 1 faucet per 4 to 6 households.
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The water supply system is classified into Level 3, which includes ______ Systems or Individual House Connections.
The water supply system is classified into Level 3, which includes ______ Systems or Individual House Connections.
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The water supply system is categorized into levels, including Level 3, which includes ______ Systems or Individual House Connections.
The water supply system is categorized into levels, including Level 3, which includes ______ Systems or Individual House Connections.
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Study Notes
Well Construction
- Wells can be dug to a depth of about 15 meters and have a diameter determined by space availability.
- Driven Wells are typically the least expensive type of well construction.
- Bored Wells are created using large augers.
Well Operation and Challenges
- The operation of a pump lowers the water table, forming a cone of depression around the well.
- Driven Wells can reach depths of 15 meters (50 ft).
- Beton Welly wells can be driven to depths up to 9 meters.
Beton Welly and Bored Wells
- Beton Welly consists of a series of connected lengths of pipe driven by repeated impacts.
- Bored Wells utilize augers and are usually less than 30 meters (100 ft) deep.
- The diameter of bored wells ranges from 6 to 30 inches during drawdown.
Water Table Dynamics
- Bored Wells are suitable when the earth is free from loose material to prevent caving in.
- Drawdown refers to the decrease in water level at the well's perimeter, resulting in a cone of depression.
- The water table is lowered in the vicinity of the well due to pumping.
Infrastructure of Water Supply Systems
- Wells at Level 1 can be utilized as reliable sources of spring water for residential homes.
- A cone of depression is established when pumping begins.
- Drilled Wells can be constructed using percussion or rotary machines, reaching depths of up to 300 meters (984 ft).
Risk and Equipment
- Drilled Wells pose a lower risk of collapse due to greater depths and continuous casing use.
- The geology of a site determines the equipment needed for constructing Drilled Wells.
- Driven Wells consist of a series of pipe lengths driven into the ground.
Water Supply System Components
- Components of the water supply system include the water source pipe, distributing pipe, and necessary branch pipes.
- A well-designed water supply system encompasses a source, reservoir, piped distribution network, and household taps.
- This system is generally suitable for densely populated urban areas and serves an average of 100 households with 1 faucet per 4-6 homes.
Water Supply Classifications
- The water supply system is classified into levels, including Level 3 systems, which cover Individual House Connections.
- Level 3 systems provide direct connections to households for improved water accessibility.
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Description
This quiz covers different types of wells used for individual water supply, including dug wells and driven wells, and their characteristics.
