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Questions and Answers
What is the purpose of a diversion dam?
What is the purpose of a diversion dam?
In drip irrigation, how is water applied to the soil?
In drip irrigation, how is water applied to the soil?
What does effective rainfall refer to?
What does effective rainfall refer to?
What does effective rooting depth refer to?
What does effective rooting depth refer to?
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What is effluent?
What is effluent?
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What does a drop refer to in an in-line canal structure?
What does a drop refer to in an in-line canal structure?
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What is karst topography primarily shaped by?
What is karst topography primarily shaped by?
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What does the term 'loading limit' refer to in the context of wastewater treatment?
What does the term 'loading limit' refer to in the context of wastewater treatment?
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What does leaching in irrigation refer to?
What does leaching in irrigation refer to?
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What is a lined channel typically made of for irrigation purposes?
What is a lined channel typically made of for irrigation purposes?
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In lowland rice production, what does 'land soaking water requirement' depend on?
In lowland rice production, what does 'land soaking water requirement' depend on?
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What does lateral spacing refer to in irrigation?
What does lateral spacing refer to in irrigation?
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What term refers to the volume of water stored in a reservoir between the minimum water level and normal water level?
What term refers to the volume of water stored in a reservoir between the minimum water level and normal water level?
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Which term describes the rise in maximum flood level due to an obstruction to the flow, such as a dam, being introduced?
Which term describes the rise in maximum flood level due to an obstruction to the flow, such as a dam, being introduced?
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What does the term 'aquifer' refer to?
What does the term 'aquifer' refer to?
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In irrigation, what does 'application efficiency' represent?
In irrigation, what does 'application efficiency' represent?
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What is the term used to describe overgrowths of algae in water producing dangerous toxins?
What is the term used to describe overgrowths of algae in water producing dangerous toxins?
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What is meant by 'actual crop evapotranspiration'?
What is meant by 'actual crop evapotranspiration'?
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What does the term 'normal depth' refer to in an open channel flow?
What does the term 'normal depth' refer to in an open channel flow?
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What is the definition of 'outside slope' as per the provided text?
What is the definition of 'outside slope' as per the provided text?
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In the context of open channel flow, what is 'normal storage elevation'?
In the context of open channel flow, what is 'normal storage elevation'?
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How is 'optimal emitter spacing' defined in irrigation practices?
How is 'optimal emitter spacing' defined in irrigation practices?
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Which term refers to 'water flow that is conveyed in such a manner that top surface is exposed to the atmosphere'?
Which term refers to 'water flow that is conveyed in such a manner that top surface is exposed to the atmosphere'?
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What does 'pan evaporation' refer to in hydrology?
What does 'pan evaporation' refer to in hydrology?
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What is the defining characteristic of a unimodal rainfall pattern?
What is the defining characteristic of a unimodal rainfall pattern?
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What is the upstream face of an embankment?
What is the upstream face of an embankment?
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What is considered waste according to the text?
What is considered waste according to the text?
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What does water balance account for?
What does water balance account for?
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What is a well log used for?
What is a well log used for?
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What characterizes a well-protected reservoir?
What characterizes a well-protected reservoir?
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Study Notes
Open Channel Flow and Water Terminologies
- Normal depth: constant flow depth along a longitudinal section of a channel under uniform flow conditions
- Normal storage elevation: maximum elevation of the water surface that can be attained by the dam or reservoir without flow in the spillway
Irrigation Terminologies
- Access areas: areas open for public entry such as golf courses, public and private parks, playgrounds, schoolyards, and residential landscapes
- Active storage: volume of water stored in a reservoir between the minimum water level and normal water level
- Actual crop evapotranspiration: rate of evapotranspiration equal to or smaller than predicted crop evapotranspiration
- Afflux elevation: rise in maximum flood level from the original unobstructed flood level after an obstruction to the flow has been introduced
- Algal bloom: overgrowths of algae in water producing dangerous toxins in fresh or marine water
- Application efficiency: ratio of the average depth of irrigation water infiltrated and stored in the root zone to the average depth of irrigation water applied
- Aquifer: geologic formation which contains water and transmits it at a rate sufficient to be economically developed for pumping artificially developed well
Canal and Reservoir Terminologies
- Diversion dam: structure or weir provided across the river or creek to raise its water level and divert the water into the main canal to facilitate irrigation by gravity
- Diversion water requirement: total quantity of water diverted from a stream, lake, or reservoir to irrigate a crop
- Drop: in-line canal structure designed to convey canal water from a higher level to a lower level, duly dissipating the excess energy resulting from the drop in elevation
- Effective rainfall: amount of rainwater that falls directly on the field and is used by the crop for growth and development
Soil and Water Terminologies
- Effective rooting depth: soil depth from which the bulk of the roots of the crop extracts most of the water needed for evapotranspiration
- Effective size: particle diameter corresponding to a 10% sieve passing
- Effluent: discharges from known sources which is passed into a body of water or land, or wastewater flowing out of a manufacturing plant
- Karst topography: geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rocks such as limestone or dolomite
Land and Water Management Terminologies
- Land preparation water requirement: amount of water required in lowland rice production which includes water losses through evaporation, seepage, and percolation
- Land soaking water requirement: amount of water required in lowland rice production which is a function of the initial soil moisture and the physical properties of the soil
- Lateral spacing: spacing between irrigation laterals
- Leaching: deep percolation of water beyond the root zone of plants, resulting in loss of salts or nutrients
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Description
Test your knowledge on irrigation terminologies including concepts like steady uniform flow, varied/non-uniform flow, active storage in reservoirs, and access areas open for public entry.