Control Structures

Description: This quiz covers various aspects of Control Structures in Hydraulic Engineering.
Number of Questions: 15
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Tags: hydraulic engineering control structures water resources
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What is the primary purpose of a control structure in hydraulic engineering?

  1. To regulate the flow of water

  2. To prevent flooding

  3. To generate hydroelectric power

  4. To improve water quality


Correct Option: A
Explanation:

Control structures are primarily designed to regulate the flow of water in a watercourse or reservoir, enabling efficient water management and flood control.

Which type of control structure is commonly used to raise the water level in a river or reservoir?

  1. Weir

  2. Dam

  3. Barrage

  4. Aqueduct


Correct Option: B
Explanation:

Dams are typically constructed to raise the water level in a river or reservoir, creating a storage facility for water supply, irrigation, or hydroelectric power generation.

What is the function of a spillway in a control structure?

  1. To control the flow of water during floods

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Spillways are designed to safely release excess water during floods, preventing overtopping and potential damage to the control structure.

Which type of control structure is primarily used to divert water from one location to another?

  1. Weir

  2. Dam

  3. Barrage

  4. Canal


Correct Option: D
Explanation:

Canals are artificial waterways constructed to divert water from one location to another, often for irrigation, water supply, or navigation purposes.

What is the purpose of a sluice gate in a control structure?

  1. To regulate the flow of water

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Sluice gates are movable gates used to regulate the flow of water through a control structure, allowing precise control over the discharge rate.

Which type of control structure is commonly used to measure the flow rate of water in a river or channel?

  1. Weir

  2. Dam

  3. Barrage

  4. Flume


Correct Option: D
Explanation:

Flumes are measuring devices used to accurately determine the flow rate of water in open channels, providing valuable data for water management and hydraulic studies.

What is the primary function of a stilling basin in a control structure?

  1. To dissipate energy and reduce turbulence

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Stilling basins are designed to dissipate the energy of flowing water and reduce turbulence downstream of a control structure, preventing erosion and protecting the structure.

Which type of control structure is commonly used to control the flow of water in a river or channel without significantly raising the water level?

  1. Weir

  2. Dam

  3. Barrage

  4. Aqueduct


Correct Option: A
Explanation:

Weirs are overflow structures that allow water to flow over them without significantly raising the upstream water level, enabling flow control and measurement.

What is the purpose of a fish ladder in a control structure?

  1. To allow fish to migrate upstream past the structure

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Fish ladders are structures that enable fish to bypass control structures and migrate upstream, ensuring the continuity of fish populations and maintaining ecological balance.

Which type of control structure is primarily used to store water for irrigation purposes?

  1. Weir

  2. Dam

  3. Barrage

  4. Reservoir


Correct Option: D
Explanation:

Reservoirs are artificial lakes created by constructing dams or barrages, primarily used to store water for irrigation, water supply, flood control, or hydroelectric power generation.

What is the main purpose of a gated spillway in a control structure?

  1. To control the flow of water during floods

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Gated spillways allow for precise control of the flow rate during floods, enabling the release of excess water while maintaining the desired reservoir level.

Which type of control structure is commonly used to divert water from a river or channel for irrigation or water supply purposes?

  1. Weir

  2. Dam

  3. Barrage

  4. Canal


Correct Option: D
Explanation:

Canals are artificial waterways constructed to divert water from a river or channel for irrigation, water supply, or navigation purposes.

What is the function of a fuse plug in a control structure?

  1. To protect the structure from overtopping

  2. To generate hydroelectric power

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Fuse plugs are designed to fail under high water pressure, creating a controlled breach to prevent catastrophic overtopping and potential damage to the control structure.

Which type of control structure is primarily used to regulate the flow of water in a river or channel during floods?

  1. Weir

  2. Dam

  3. Barrage

  4. Floodgate


Correct Option: D
Explanation:

Floodgates are movable gates used to control the flow of water during floods, preventing inundation of downstream areas and protecting infrastructure.

What is the purpose of a headrace in a hydroelectric power plant?

  1. To convey water to the turbine

  2. To generate electricity

  3. To provide irrigation water

  4. To improve water quality


Correct Option: A
Explanation:

Headraces are channels or tunnels that convey water from the reservoir to the turbine in a hydroelectric power plant, creating the necessary pressure head for electricity generation.

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