In a reaction turbine, the axial thrust due...

Question 1 / 270705eccefa0bacbc34ba4d470f6

Question 1 of 270705eccefa0bacbc34ba4d470f6

In a reaction turbine, the axial thrust due to the reactive force on the rotor blading drives the rotor __________.

Question 1 of 27070

In a reaction turbine, the axial thrust due to the reactive force on the rotor blading drives the rotor __________.

🔍 Key Concepts

• Reaction turbine blading and how steam expands across fixed and moving blades • Direction of steam flow and pressure drop through the stages • Purpose and location of dummy piston / balance piston in turbines

💭 Think About

• When steam expands over reaction blades, in which direction is the reactive force acting on the rotor relative to the high- and low-pressure ends? • How does axial thrust usually act in a reaction turbine, and what component is installed to oppose or balance that thrust? • Think about why a dummy (balance) piston is fitted at one end of the turbine: is it there to push the rotor in the same direction as the reactive thrust, or to oppose it?

✅ Before You Answer

• Identify which end of the turbine is the high-pressure inlet and which is the low-pressure exhaust • Determine the direction of steam velocity change over the moving reaction blades and how that creates a reaction force on the rotor • Confirm the role of the dummy piston: is it there to balance an existing thrust, or to create the primary driving thrust?

Question 1 of 27070

In a reaction turbine, the axial thrust due to the reactive force on the rotor blading drives the rotor __________.

toward the high pressure end

toward the low pressure end

against the dummy piston

toward the diaphragm squealer rings

Question 1 / 270705eccefa0bacbc34ba4d470f6

Question 1 of 270705eccefa0bacbc34ba4d470f6

In a reaction turbine, the axial thrust due to the reactive force on the rotor blading drives the rotor __________.

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Question 1 of 27070

In a reaction turbine, the axial thrust due to the reactive force on the rotor blading drives the rotor __________.