In what classification of steam turbines are...

Question 1 / 270705eccefa0bacbc34ba4d470dc

Question 1 of 270705eccefa0bacbc34ba4d470dc

In what classification of steam turbines are the moving blades and the adjacent fixed rows of blades shaped to act as nozzles?

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Question 1 of 27070

In what classification of steam turbines are the moving blades and the adjacent fixed rows of blades shaped to act as nozzles?

🔍 Key Concepts

• Impulse vs. reaction turbines and where pressure drop occurs • Role of nozzles in converting pressure energy to velocity • How moving and fixed blades are shaped to direct and accelerate steam flow

💭 Think About

• Ask yourself: In which turbine type does most of the steam pressure drop happen in the nozzles rather than across the moving blades? • Consider: If both fixed and moving blades are shaped like nozzles, what does that tell you about where the steam is expanding and accelerating? • Think: Does an impulse turbine rely more on high-velocity jets from separate nozzles, or on the pressure drop across the blade passages themselves?

✅ Before You Answer

• Verify which turbine type is defined by pressure drop across both fixed and moving blades rather than only in the nozzles • Check which classification specifically mentions blade passages acting as nozzles in textbook definitions • Eliminate options that describe flow direction only (like axial/helical/radial) instead of the thermodynamic principle of operation

Question 1 of 27070

In what classification of steam turbines are the moving blades and the adjacent fixed rows of blades shaped to act as nozzles?

Impulse

Reaction

Helical flow

Radial flow