Water Resources Engineering Overview
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Questions and Answers

Water resources engineering supports ___ needs.

modern living

The process called the ___ Cycle conserves water.

Hydrologic

Precipitation occurs when atmospheric moisture becomes too great to remain ___ in clouds.

suspended

Ocean evaporation is the greatest source of ___ .

<p>precipitation</p> Signup and view all the answers

The geographical area contributing to the flow of a river is called a ___.

<p>watershed</p> Signup and view all the answers

Reservoirs are bodies of water used to store water to meet various ___.

<p>demands</p> Signup and view all the answers

Evapotranspiration combines the processes of ___ and transpiration.

<p>evaporation</p> Signup and view all the answers

Runoff is the water that flows across the land surface after a ___ event.

<p>storm</p> Signup and view all the answers

Construction of raised platforms for temporary shelter during ____.

<p>flood</p> Signup and view all the answers

Dewatering by pumps is necessary when gravity discharge of floodwater is not ____.

<p>possible</p> Signup and view all the answers

Construction of floodwalls is important near congested areas of cities, towns, and ____ belts.

<p>industrial</p> Signup and view all the answers

Long-term measures include construction of storage ____ to moderate flood flow.

<p>reservoirs</p> Signup and view all the answers

Integrated watershed management reduces surface runoff, erosion, and increases ____ capacity.

<p>infiltration</p> Signup and view all the answers

Flood forecasts and warnings are based on hydro-____ studies.

<p>geomorphological</p> Signup and view all the answers

Irrigation is the artificial provision of crops with ____.

<p>water</p> Signup and view all the answers

Different crops have different water requirements depending on climate, soil type, and method of ____.

<p>cultivation</p> Signup and view all the answers

Stopping sight distance is the distance required by a driver to bring his vehicle to a stop after an object becomes ______.

<p>visible</p> Signup and view all the answers

The stopping sight distance is made up of two components: distance travelled during perception and brake reaction time, and the distance travelled while ______ the brakes.

<p>applying</p> Signup and view all the answers

Rail transport is suitable for carriage of ______ commodities over long haul.

<p>bulk</p> Signup and view all the answers

Rail transport enjoys an advantage when a full ______ load is to be transported.

<p>rake</p> Signup and view all the answers

Rail transport consumes less ______ than road transport due to low friction.

<p>energy</p> Signup and view all the answers

Air transport is known for its high ______, with speeds of 1000 km per hour being common.

<p>speed</p> Signup and view all the answers

International and domestic travel by air has encouraged the ______ industry.

<p>tourism</p> Signup and view all the answers

Evaporation is the process of liquid converting into ______, through wind action and solar radiation.

<p>vapour</p> Signup and view all the answers

Air transport is invaluable for the defense of the country as it can transport military ______ quickly.

<p>personnel</p> Signup and view all the answers

Transpiration is the process by which water molecules leave the body of a living ______ and escapes to the atmosphere.

<p>plant</p> Signup and view all the answers

Evapotranspiration includes all evaporation from water and land surfaces, as well as ______ from plants.

<p>transpiration</p> Signup and view all the answers

Fluid is a term that describes both gases and ______.

<p>liquids</p> Signup and view all the answers

Buoyancy is the uplifting force exerted by ______ on a submerged solid object.

<p>water</p> Signup and view all the answers

Discharge, or rate of flow, Q, describes the amount of water passing through an imaginary ______ per unit time.

<p>plane</p> Signup and view all the answers

A ‘flood’ is defined as a ‘great flow of water… especially, a body of water, rising, swelling, and ______ land not usually thus covered.’

<p>over-flowing</p> Signup and view all the answers

The time duration from the first irrigation during sowing up to the last before harvest is called the ______.

<p>base period</p> Signup and view all the answers

Short-term measures in flood management include the construction of ______ along low-level banks to mitigate flooding.

<p>embankments</p> Signup and view all the answers

Moistening the dry land before sowing crops is known as ______ irrigation.

<p>paleo</p> Signup and view all the answers

The total depth of water required to raise a crop over a unit area is usually called ______.

<p>delta</p> Signup and view all the answers

The hydrologic cycle consists of four key components: precipitation, runoff, ______, and evapotranspiration.

<p>storage</p> Signup and view all the answers

The types of flooding include River Flooding, Flash Floods, Urban Flooding, ______ Flooding, and Floods Arising due to Failure of Dam.

<p>Strom Surge or Tidal</p> Signup and view all the answers

Flow of water in a conduit may be classified as Laminar flow versus ______ flow.

<p>turbulent</p> Signup and view all the answers

In analyzing hydraulic problems, flow can also be classified as Steady flow versus ______ flow.

<p>unsteady</p> Signup and view all the answers

The flow of water can also be described in terms of Uniform flow versus ______ flow.

<p>nonuniform</p> Signup and view all the answers

Construction and maintenance operation signs usually have ______ text on an orange background.

<p>black</p> Signup and view all the answers

Carriageway markings are painted with hot applied ______ paints.

<p>thermoplastic</p> Signup and view all the answers

The space required for parking a car is ______ x 5 m, and preferably 3 m x 6 m.

<p>2.5 m</p> Signup and view all the answers

On-street parking can be either parallel parking or ______ parking, which is preferred for easier maneuvers.

<p>angle</p> Signup and view all the answers

Street lighting helps guide road users to see the ______ and the immediate surroundings clearly.

<p>carriageway</p> Signup and view all the answers

Categories of carriageway markings include centerline, stop lines, and ______ crossings.

<p>pedestrian</p> Signup and view all the answers

Modern multi-storey car parks can be totally mechanically operated by ______.

<p>robots</p> Signup and view all the answers

Traffic lane markings are one type of ______ marking on the carriageway.

<p>carriageway</p> Signup and view all the answers

Flashcards

Water resources engineering

The field that focuses on using water to meet modern living needs, including agriculture, industry, homes, recreation, and the environment.

Hydrologic Cycle

The continuous movement of water on, above and below the surface of the Earth.

Precipitation

Any form of water falling from the atmosphere to the Earth's surface, like rain, snow, hail, frost, or dew.

Runoff

Water that flows over the land surface after a storm event.

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Watershed

The geographical area that drains into a particular river or stream.

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Reservoir

A natural or artificial lake used to store water for various purposes.

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Evaporation

The process where liquid water changes into water vapor and rises into the atmosphere.

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Transpiration

The process where plants release water vapor into the atmosphere through their leaves.

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Evapotranspiration

The combined process of evaporation from water and land surfaces, and transpiration from plants.

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Buoyancy

The upward force exerted by a fluid (like water) on a submerged object.

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Discharge (Q)

The amount of water flowing through a specific point in a channel per unit time.

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Flood

An unusually high water level overflowing onto land, causing damage and disruption.

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Flood Control

Measures taken to reduce the negative effects of floods, protecting people and property.

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Embankments

Raised structures built along riverbanks to prevent flooding by channeling water away from low-lying areas.

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Base Period

The total time between the first irrigation during sowing and the last irrigation before harvest.

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Crop Period

The total time from sowing (planting) to harvest.

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Paleo Irrigation

Watering the land before sowing to moisten the soil and prepare for planting.

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Kor Watering

The maximum single watering given to young crops during their initial stages.

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Delta

The total depth of water needed to raise a crop over a specific area of land.

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Laminar Flow

Smooth, streamlined water flow with parallel layers, minimal mixing.

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Turbulent Flow

Water flow with irregular, chaotic movement and mixing.

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Floodwalls

Barriers built near densely populated areas to prevent floodwaters from entering.

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Storage Reservoirs

Large bodies of water built to regulate flood flows by holding excess water during peak flood seasons.

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Integrated Watershed Management

A comprehensive approach to managing water resources in hilly areas, aiming to reduce runoff and erosion, increasing water absorption.

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Flood Forecasts and Warnings

Predictions of potential flooding based on scientific studies, allowing for early alerts and evacuation plans.

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Spillways

Safety features in dams designed to release excess water from reservoirs to avoid overflows.

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Irrigation

Supplying crops with water artificially, especially necessary in dry areas or during periods without rainfall.

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Crop Water Requirement

The total amount of water a specific crop needs from sowing to harvest.

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Stopping Sight Distance

The minimum distance a driver needs to completely stop their vehicle after seeing an obstacle on the road.

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Components of Stopping Sight Distance

Stopping sight distance is comprised of two components: 1. The distance traveled while perceiving the obstacle and reacting by braking. 2. The distance traveled while applying brakes until the vehicle stops.

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Rail Transport Advantages

Rail transport offers advantages in hauling large quantities, energy efficiency, safety, pollution reduction, suitability for mass transit, and cost-effectiveness for long-distance passenger travel.

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Rail Transport for Bulk Commodities

Rail transport is highly suitable for moving large quantities of goods like coal, ore, steel, cement, and petroleum products over long distances.

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Rail Transport: Full Rake Load

Rail transport excels when a full train load is transported from one location to another.

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Air Transport Advantage: Speed

Air transport's greatest advantage is its high speed, typically exceeding 1000 kilometers per hour.

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Air Transport Advantage: Tourism

Air travel has fostered the growth of international and domestic tourism by making it easier to travel.

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Air Transport Advantage: Business and Trade

Air transport expedites the movement of valuable goods and perishable items, boosting business and trade.

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Construction Signs

Signs used during construction or maintenance operations, usually black text on an orange background.

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Road Markings

Painted lines, arrows, and symbols on road surfaces providing guidance and information to drivers.

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Carriageway Markings

Road markings directly applied to the road surface, like lane dividers and stop lines.

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Parallel Parking

Parking a vehicle alongside the curb, with the vehicle's length running parallel to the curb.

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Angle Parking

Parking a vehicle at an angle to the curb, making entry and exit easier.

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Off-Street Parking

Parking facilities located away from public streets, like parking lots or garages.

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Street Lighting

Lights installed along roads to improve visibility for drivers and pedestrians at night.

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Multi-Storey Car Parks

Parking structures with multiple levels, designed to accommodate a large number of vehicles in a limited space.

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Study Notes

Water Resources Engineering

  • Water resources engineering is a specialty focusing on water use for modern life, including agriculture, industry, homes, recreation, and environmental needs.
  • Water is found in the atmosphere, oceans, on land, and within the Earth's crust.
  • Solar energy drives water movement.
  • The hydrologic cycle (water's continuous movement) conserves water, no creation or destruction.
  • Precipitation includes rainfall, snowfall, hail, frost, and dew, representing water reaching Earth from the atmosphere.
  • Runoff is water flowing across the land after a storm, contributing to streams and rivers. A drainage basin is the area providing flow to a particular river.
  • Reservoirs are artificial or natural bodies of water storing water.
  • Evapotranspiration combines evaporation (liquid to vapor) from water/land and transpiration (water leaving plants).
  • Hydraulic engineers design and manage water movement through canals, channels, aqueducts, dams, levees, canal locks.
  • Buoyancy is the upward force on submerged objects in water.
  • Discharge (Q) is water volume moving through a point per time (e.g., cubic feet per second).

Flood Control

  • A flood is a large amount of water overflowing land not usually submerged. Flood control reduces flood impact.
  • Short-term flood management includes embankment construction (along low-lying banks), raised platforms for temporary shelter, and pumping to remove water when gravity drainage is not possible.
  • Long-term flood management includes building reservoirs to moderate peak flows, improved watershed management (reducing runoff and increasing infiltration), and flood forecasting to give warnings.

Irrigation

  • Irrigation artificially provides water to crops, vital in areas with insufficient rainfall.
  • Irrigation increases crop yields, reduces famine risk, allows for improved crop selection, enhances economic development, provides water for domestic and industrial use.
  • Water requirements vary by crop, location, and cultivation methods.
  • Irrigation intervals and depths vary depending on growing needs.

Transportation Engineering

  • Transportation engineering efficiently moves people and goods; its principles change with new modes.
  • It applies science and technology to plan, design, operate, and manage transportation systems for safety, speed, comfort, convenience, cost-effectiveness, and environmental compatibility.

Importance of Transportation

  • Transportation is essential for: Moving raw materials; moving goods/resources; reducing time to market (perishables); lowering the price of goods; developing agriculture; and national defense.

Traffic Engineering

  • Traffic engineering is a specialized aspect managing traffic flow, from towns to large cities, for safety and speed.
  • Traffic engineering uses projected and monitored traffic patterns to develop automated or centralized signals.
  • Components that regulate traffic include regulatory signs (stop, yield, speed limits, parking), warning signs (potential hazards), guide signs (directions), and construction/maintenance signs.
  • Importance of markings and signs for safety and efficient flow.

Railway Engineering

  • Railway engineering focuses on planning, design, construction, operation, and maintenance of railways, advancing with technological advancements in electronic signaling and communication.

Advantages of Rail Transport

  • Suitable for bulk goods transport over long distances.
  • Efficient in cases where whole loads need to be transported from point A to point B.
  • Uses less energy than road transport, given lower friction between steel wheels and tracks.
  • Does not rely on fossil fuels, using electricity or other sources.
  • Offers a cleaner and safer approach to transportation of many goods.

Advantages of Air Transport

  • Very fast; suitable for high-value/perishable cargo, international or long-distance travel.
  • Facilitates tourism and facilitates business and trade.
  • Useful for military transport, aid delivery, and rescue operations.

Water Transport

  • Water transport is cost-effective for bulk cargo (minerals or commodities), as it avoids the construction costs for roads/railways.
  • Suitable for cheap and efficient shipping of vast quantities of goods (coal, grains, etc.).
  • Some areas are difficult to access by road, water transport offers easy access.
  • Ports, harbors, and docks support water transport processes.

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Description

This quiz explores the essential concepts of water resources engineering, delving into the hydrologic cycle, sources of water, and engineering solutions for managing water. Understand how various factors like precipitation, runoff, and evapotranspiration impact our water systems. Test your knowledge on how hydraulic engineers contribute to sustainable water management.

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