Water Reservoirs and Evapotranspiration Quiz

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What is the main difference between a confined aquifer and an unconfined aquifer?

A confined aquifer has impermeable layers above and below it, while an unconfined aquifer does not.

A confined aquifer contains saltwater, while an unconfined aquifer contains freshwater.

The groundwater in a confined aquifer is under pressure, while in an unconfined aquifer it is not. (correct)

A confined aquifer is deeper underground than an unconfined aquifer.

What does the term 'critical depth' refer to in the context of water flow?

The depth at which water flow velocity exceeds a specific threshold.

The depth at which water flow is at its maximum capacity.

The depth at which water flow causes erosion.

The depth at which no other backwater forces are involved in the flow. (correct)

What factor affects the application efficiency of irrigation?

The amount of water stored in the reservoir.

The salinity of the soil. (correct)

The type of crops being irrigated.

The size of the irrigation field.

What defines the term 'crop coefficient' in agriculture?

The ratio of actual crop evapotranspiration to potential evapotranspiration. Signup and view all the answers

What does 'algal bloom' in water indicate?

Overgrowth of algae producing dangerous toxins in water. Signup and view all the answers

What does 'conveyance efficiency' measure in an irrigation project?

The ratio of water received at the inlet to water released at the project's headwork. Signup and view all the answers

'Border irrigation' involves directing water flow down slopes along what?

Parallel border strips. Signup and view all the answers

'Cropping pattern' refers to what in agriculture?

Sequence of different crops grown in regular order on specific fields. Signup and view all the answers

'Dead storage volume' in a reservoir primarily accounts for what?

'Lost' water that cannot be utilized from a reservoir. Signup and view all the answers

'Design irrigable area' for an irrigation project depends on what factors?

% arable lands and available water supply. Signup and view all the answers

'Distribution uniformity' in agricultural irrigation systems relates to what aspect?

% difference in water application across an irrigated area. Signup and view all the answers

'Dam height' is defined as the vertical distance between what two points?

'Crest' of the dam and lowest ground line point. Signup and view all the answers

Border irrigation involves water flowing down the slope at varying depths.

False Signup and view all the answers

A dam is constructed to prevent water flow.

False Signup and view all the answers

Conveyance efficiency measures the ratio of water released at the project's headwork to that received at the inlet.

False Signup and view all the answers

Critical depth is the depth of water flow where no backwater forces are involved.

True Signup and view all the answers

Crop coefficient compares the potential evapotranspiration to actual crop evapotranspiration.

False Signup and view all the answers

An algal bloom in water indicates a lack of nutrients.

False Signup and view all the answers

Aquifers transmit water economically for pumping from artificially developed wells.

True Signup and view all the answers

Design irrigable area depends on the projected crop yield only.

False Signup and view all the answers

Dam height is measured from the top of the dam structure to the ground below.

False Signup and view all the answers

Contamination refers to making water more suitable for intended use.

False Signup and view all the answers

Crop water requirements include only evapotranspiration and consumptive use.

False Signup and view all the answers

Bearings in irrigation projects should produce shear failure in the soil.

False Signup and view all the answers

The afflux elevation refers to the rise in the maximum flood level due to the introduction of an obstruction like a dam.

True Signup and view all the answers

An aquifer is a geological formation that contains water and transmits it at a rate insufficient for economic development.

False Signup and view all the answers

Contamination of water involves the introduction of substances that make the water more desirable for intended use.

False Signup and view all the answers

The critical depth in water flow refers to the depth where no other backwater forces are involved.

True Signup and view all the answers

Conveyance efficiency measures the ratio of water released at the project's headwork to that received at the outlet.

False Signup and view all the answers

Crop evapotranspiration rate includes water loss through transpiration and vaporation.

True Signup and view all the answers

A dam's designed height refers to the actual height of the embankment after settlement.

False Signup and view all the answers

Border irrigation involves parallel border strips with uniform water flow depths.

True Signup and view all the answers

A basin irrigation type mainly involves applying water through a gap in the perimeter dike.

True Signup and view all the answers

Crop coefficient compares actual crop evapotranspiration to potential evapotranspiration

True Signup and view all the answers

Confined aquifers are groundwater layers that are not restricted by impermeable materials.

False Signup and view all the answers

Dead storage volume accounts for sediment accumulation over a 10-year period in reservoirs.

False Signup and view all the answers

Water Reservoirs and Evapotranspiration Quiz

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Questions and Answers

What is the main difference between a confined aquifer and an unconfined aquifer?

What does the term 'critical depth' refer to in the context of water flow?

What factor affects the application efficiency of irrigation?

What defines the term 'crop coefficient' in agriculture?

What does 'algal bloom' in water indicate?

What does 'conveyance efficiency' measure in an irrigation project?

'Border irrigation' involves directing water flow down slopes along what?

'Cropping pattern' refers to what in agriculture?

'Dead storage volume' in a reservoir primarily accounts for what?

'Design irrigable area' for an irrigation project depends on what factors?

'Distribution uniformity' in agricultural irrigation systems relates to what aspect?

'Dam height' is defined as the vertical distance between what two points?

Border irrigation involves water flowing down the slope at varying depths.

A dam is constructed to prevent water flow.

Conveyance efficiency measures the ratio of water released at the project's headwork to that received at the inlet.

Critical depth is the depth of water flow where no backwater forces are involved.

Crop coefficient compares the potential evapotranspiration to actual crop evapotranspiration.

An algal bloom in water indicates a lack of nutrients.

Aquifers transmit water economically for pumping from artificially developed wells.

Design irrigable area depends on the projected crop yield only.

Dam height is measured from the top of the dam structure to the ground below.

Contamination refers to making water more suitable for intended use.

Crop water requirements include only evapotranspiration and consumptive use.

Bearings in irrigation projects should produce shear failure in the soil.

The afflux elevation refers to the rise in the maximum flood level due to the introduction of an obstruction like a dam.

An aquifer is a geological formation that contains water and transmits it at a rate insufficient for economic development.

Contamination of water involves the introduction of substances that make the water more desirable for intended use.

The critical depth in water flow refers to the depth where no other backwater forces are involved.

Conveyance efficiency measures the ratio of water released at the project's headwork to that received at the outlet.

Crop evapotranspiration rate includes water loss through transpiration and vaporation.

A dam's designed height refers to the actual height of the embankment after settlement.

Border irrigation involves parallel border strips with uniform water flow depths.

A basin irrigation type mainly involves applying water through a gap in the perimeter dike.

Crop coefficient compares actual crop evapotranspiration to potential evapotranspiration

Confined aquifers are groundwater layers that are not restricted by impermeable materials.

Dead storage volume accounts for sediment accumulation over a 10-year period in reservoirs.

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