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Consider the following devices as likely to concern with water hammer phenomenon in their design/operation:
- Hydraulic ram
- Hydraulic accumulator
- Penstock
- Draft tube
Which of the above devices is/are so concerned?
- a)1, 2, 3 and 4
- b)1, 3 and 4 only
- c)2 and 3 only
- d)3 only
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Consider the following devices as likely to concern with water hammer ...
Water hammer is a phenomenon that occurs in fluid systems when there is a sudden change in flow velocity, causing a pressure surge that can lead to damage to the system. In the context of the devices mentioned - hydraulic ram, hydraulic accumulator, penstock, and draft tube - water hammer can be a concern in their design and operation. Let's discuss each device in detail to understand why.
1. Hydraulic Ram:
A hydraulic ram is a device that uses the energy of falling water to pump a portion of the water to a higher elevation. Water hammer can occur in a hydraulic ram when the flow of water is suddenly stopped or redirected. This can happen when the valve controlling the flow of water is closed rapidly, causing a pressure surge that can lead to damage to the ram and associated piping.
2. Hydraulic Accumulator:
A hydraulic accumulator is a device that stores hydraulic energy under pressure for later use. It is commonly used in hydraulic systems to provide additional power during peak demand. Water hammer can occur in a hydraulic accumulator when there is a sudden change in flow rate, such as when a valve is closed rapidly. This can create a pressure surge that can damage the accumulator and other components of the hydraulic system.
3. Penstock:
A penstock is a large valve or gate used to control the flow of water in a hydraulic system, such as a dam or power plant. Water hammer can occur in a penstock when the flow of water is suddenly stopped or redirected. This can happen when the penstock is closed rapidly, causing a pressure surge that can lead to damage to the penstock and associated equipment.
4. Draft Tube:
A draft tube is a component used in hydraulic turbines to improve the efficiency of the turbine by reducing the velocity of water as it exits the turbine. Water hammer can occur in a draft tube when there is a sudden change in flow velocity, such as when the turbine is suddenly shut down. This can create a pressure surge that can damage the draft tube and other components of the turbine system.
Overall, devices like hydraulic ram, hydraulic accumulator, penstock, and draft tube are all likely to be concerned with water hammer phenomenon in their design and operation. Therefore, option B, which includes hydraulic ram, penstock, and draft tube, is the correct answer.
1. Hydraulic Ram:
A hydraulic ram is a device that uses the energy of falling water to pump a portion of the water to a higher elevation. Water hammer can occur in a hydraulic ram when the flow of water is suddenly stopped or redirected. This can happen when the valve controlling the flow of water is closed rapidly, causing a pressure surge that can lead to damage to the ram and associated piping.
2. Hydraulic Accumulator:
A hydraulic accumulator is a device that stores hydraulic energy under pressure for later use. It is commonly used in hydraulic systems to provide additional power during peak demand. Water hammer can occur in a hydraulic accumulator when there is a sudden change in flow rate, such as when a valve is closed rapidly. This can create a pressure surge that can damage the accumulator and other components of the hydraulic system.
3. Penstock:
A penstock is a large valve or gate used to control the flow of water in a hydraulic system, such as a dam or power plant. Water hammer can occur in a penstock when the flow of water is suddenly stopped or redirected. This can happen when the penstock is closed rapidly, causing a pressure surge that can lead to damage to the penstock and associated equipment.
4. Draft Tube:
A draft tube is a component used in hydraulic turbines to improve the efficiency of the turbine by reducing the velocity of water as it exits the turbine. Water hammer can occur in a draft tube when there is a sudden change in flow velocity, such as when the turbine is suddenly shut down. This can create a pressure surge that can damage the draft tube and other components of the turbine system.
Overall, devices like hydraulic ram, hydraulic accumulator, penstock, and draft tube are all likely to be concerned with water hammer phenomenon in their design and operation. Therefore, option B, which includes hydraulic ram, penstock, and draft tube, is the correct answer.
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Consider the following devices as likely to concern with water hammer ...
Correct Answer: 1, 3 and 4 only
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Consider the following devices as likely to concern with water hammer phenomenon in their design/operation: Hydraulic ram Hydraulic accumulator Penstock Draft tubeWhich of the above devices is/are so concerned?a)1, 2, 3 and 4b)1, 3 and 4 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'B'. Can you explain this answer?
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Consider the following devices as likely to concern with water hammer phenomenon in their design/operation: Hydraulic ram Hydraulic accumulator Penstock Draft tubeWhich of the above devices is/are so concerned?a)1, 2, 3 and 4b)1, 3 and 4 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following devices as likely to concern with water hammer phenomenon in their design/operation: Hydraulic ram Hydraulic accumulator Penstock Draft tubeWhich of the above devices is/are so concerned?a)1, 2, 3 and 4b)1, 3 and 4 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following devices as likely to concern with water hammer phenomenon in their design/operation: Hydraulic ram Hydraulic accumulator Penstock Draft tubeWhich of the above devices is/are so concerned?a)1, 2, 3 and 4b)1, 3 and 4 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'B'. Can you explain this answer?.
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