Turbomachine Energy Losses and Efficiency Quiz
15 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following factors can contribute to energy losses in turbomachines?

  • Low flow rate
  • Smooth surfaces
  • Low operating temperature
  • Turbulence (correct)

Which of the following statements is true about the energy efficiency of turbomachines?

  • Turbomachines have 100% energy efficiency
  • Energy losses in turbomachines are negligible
  • Turbomachines have varying degrees of energy efficiency depending on their design and operating conditions (correct)
  • Energy losses in turbomachines are always significant

What is the relationship between energy losses and the efficiency of turbomachines?

  • Lower energy losses lead to higher efficiency (correct)
  • Higher energy losses lead to higher efficiency
  • Efficiency is not affected by energy losses
  • Energy losses and efficiency are not related

What is the primary cause of energy losses in turbomachines?

<p>Friction between the rotor and stator blades (B)</p> Signup and view all the answers

Which of the following factors has the greatest impact on the efficiency of a turbomachine?

<p>The design of the blades (A)</p> Signup and view all the answers

What is the purpose of the casing in a turbomachine?

<p>To prevent fluid leakage (C)</p> Signup and view all the answers

Which of the following factors can affect the performance characteristics of turbomachines?

<p>Type of fluid and operating temperature (C)</p> Signup and view all the answers

What is the role of operating points in determining the performance characteristics of turbomachines?

<p>Operating points determine the performance characteristics of turbomachines (C)</p> Signup and view all the answers

Which of the following is a possible application of turbomachines?

<p>Power generation and water treatment (C)</p> Signup and view all the answers

Which of the following dimensionless parameters is used to quantify the degree of blade loading in turbomachines?

<p>Specific speed (C)</p> Signup and view all the answers

Which of the following dimensionless parameters is used to quantify the degree of flow swirl in turbomachines?

<p>Swirl number (A)</p> Signup and view all the answers

Which of the following dimensionless parameters is used to quantify the degree of flow diffusion in turbomachines?

<p>Diffusion factor (B)</p> Signup and view all the answers

What is the purpose of the diffuser in a turbomachine?

<p>To convert kinetic energy to pressure energy (A)</p> Signup and view all the answers

What is the main function of the rotor in a turbomachine?

<p>To convert pressure energy into kinetic energy (B)</p> Signup and view all the answers

What is the difference between an impulse and a reaction turbine?

<p>The type of rotor used (B)</p> Signup and view all the answers

More Like This

Centrifugal Pump Operation Quiz
5 questions

Centrifugal Pump Operation Quiz

StreamlinedHippopotamus avatar
StreamlinedHippopotamus
Turbomachinery Concepts Quiz
0 questions
Overview of Turbo Machines
12 questions

Overview of Turbo Machines

UnforgettableNephrite9104 avatar
UnforgettableNephrite9104
Use Quizgecko on...
Browser
Browser