SSC Exam > SSC Questions > Which one of the following is correct for im...
Start Learning for Free
Which one of the following is correct for impulse turbines?
- a)Always operates in submerged condition
- b)Converts pressure head into velocity with the help of vanes
- c)Operates by initial complete conversion to kinetic energy
- d)Operates by initial complete conversion to potential energy
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which one of the following is correct for impulse turbines?a)Always o...
In the Impulse Turbine, the available hydraulic energy is first converted into kinetic energy by means of an efficient nozzle.
View all questions of this test
The high-velocity jet issuing from the nozzle then strikes a series of suitably shaped buckets fixed around the rim of a wheel.
The buckets change the direction of the jet without changing its pressure. The resulting change in momentum sets buckets and wheel into rotary motion and thus mechanical energy is made available at the turbine shaft.
Important impulse turbines are: Pelton wheel, Turgo - impulse wheel, Girad turbine, Banki turbine and Jonval turbine, etc., Pelton wheel is predominantly used at present.
Whereas In Reaction Turbine, a part of the total available hydraulic energy is transformed into kinetic energy before the water is taken to the turbine runner. A substantial part remains in the form of pressure energy.
Most Upvoted Answer
Which one of the following is correct for impulse turbines?a)Always o...
Impulse turbines operate by initial complete conversion to kinetic energy. This means that the pressure of the fluid is converted into high-speed jets of fluid, which then strike the turbine blades and cause them to rotate. The rotating blades then turn a shaft, which is connected to a generator that produces electricity.
Working principle of impulse turbines:
- Pressure head is converted into kinetic energy: In an impulse turbine, the pressure head of the fluid is first converted into high-speed jets of fluid using a set of nozzle blades. These nozzle blades are designed to increase the velocity of the fluid while reducing its pressure. As the high-speed jets of fluid leave the nozzle blades, they strike the turbine blades, which are arranged in a series of buckets or cups around the circumference of the turbine wheel.
- Conversion of kinetic energy to mechanical energy: When the high-speed jets of fluid strike the turbine blades, they transfer their kinetic energy to the blades, causing them to rotate. The rotating blades then turn a shaft, which is connected to a generator that produces electricity.
Advantages of impulse turbines:
- Simple design: Impulse turbines are relatively simple in design and construction, which makes them easy to maintain and repair.
- High efficiency: Impulse turbines are highly efficient, especially at high heads and low flow rates.
- Suitable for high heads: Impulse turbines are well-suited for high head applications, where the fluid has a high pressure but a low velocity.
Disadvantages of impulse turbines:
- Limited flow range: Impulse turbines are not suitable for high flow rate applications, where the fluid has a high velocity but a low pressure.
- Limited flexibility: Impulse turbines are not very flexible in terms of their operation, and are typically designed to operate at a specific head and flow rate.
Working principle of impulse turbines:
- Pressure head is converted into kinetic energy: In an impulse turbine, the pressure head of the fluid is first converted into high-speed jets of fluid using a set of nozzle blades. These nozzle blades are designed to increase the velocity of the fluid while reducing its pressure. As the high-speed jets of fluid leave the nozzle blades, they strike the turbine blades, which are arranged in a series of buckets or cups around the circumference of the turbine wheel.
- Conversion of kinetic energy to mechanical energy: When the high-speed jets of fluid strike the turbine blades, they transfer their kinetic energy to the blades, causing them to rotate. The rotating blades then turn a shaft, which is connected to a generator that produces electricity.
Advantages of impulse turbines:
- Simple design: Impulse turbines are relatively simple in design and construction, which makes them easy to maintain and repair.
- High efficiency: Impulse turbines are highly efficient, especially at high heads and low flow rates.
- Suitable for high heads: Impulse turbines are well-suited for high head applications, where the fluid has a high pressure but a low velocity.
Disadvantages of impulse turbines:
- Limited flow range: Impulse turbines are not suitable for high flow rate applications, where the fluid has a high velocity but a low pressure.
- Limited flexibility: Impulse turbines are not very flexible in terms of their operation, and are typically designed to operate at a specific head and flow rate.
|
Explore Courses for SSC exam
|
|
Similar SSC Doubts
Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer?
Question Description
Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer?.
Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
Download more important topics, notes, lectures and mock test series for SSC Exam by signing up for free.
Here you can find the meaning of Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which one of the following is correct for impulse turbines?a)Always operates in submerged conditionb)Converts pressure head into velocity with the help of vanesc)Operates by initial complete conversion to kinetic energyd)Operates by initial complete conversion to potential energyCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice SSC tests.
|
|
Explore Courses for SSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup