In a reaction turbine, the fixed blades...

Question 1 / 270705eccefa0bacbc34ba4d470cc

Question 1 of 270705eccefa0bacbc34ba4d470cc

In a reaction turbine, the fixed blades function to __________.

Question 1 of 27070

In a reaction turbine, the fixed blades function to __________.

🔍 Key Concepts

• impulse vs. reaction turbines and how energy conversion is split between moving and fixed blades • the purpose of fixed (stator) blades/nozzles in directing steam • relationship between pressure drop and velocity change across fixed and moving blades

💭 Think About

• In a reaction turbine, where does most of the pressure drop occur: across the fixed blades, the moving blades, or both? How does that affect velocity? • What is the main job of a fixed blade: to change the speed of the steam, to change its direction, or to mix it? • If steam is to do useful work on the moving blades, what kind of flow (orderly vs. chaotic) and what velocity conditions are generally desirable just before the steam hits those moving blades?

✅ Before You Answer

• Confirm what happens to pressure and velocity of steam as it passes through fixed blades in a reaction turbine. • Check whether fixed blades are designed to smooth and guide the flow or to deliberately create chaos and mixing. • Verify whether the fixed blades in a reaction turbine behave more like a nozzle (accelerating/directing) or like a diffuser (slowing/expanding).

Question 1 of 27070

In a reaction turbine, the fixed blades function to __________.

decrease steam velocity

increase steam velocity

prevent turbulence

produce turbulence