The purpose of the reaction turbine dummy...

Question 1 / 205eccefa0bacbc34ba4d470c1

Question 1 of 205eccefa0bacbc34ba4d470c1

The purpose of the reaction turbine dummy piston is to ________.

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Question 1 of 20

5eccefa0bacbc34ba4d470c1

The purpose of the reaction turbine dummy piston is to ________.

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🔍 Key Concepts

• Axial thrust vs. radial thrust in steam/reaction turbines • How a dummy piston (balance piston) uses pressure differences to reduce thrust on thrust bearings • The role of gland seals versus balance pistons in controlling leaks and thrust

💭 Think About

• Think about which direction of force the turbine rotor mainly develops as steam expands through the stages—along the shaft (axial) or around the shaft (radial)? • Ask yourself: what is a dummy or balance piston physically doing with steam pressure—does it touch the casing to control clearances, or does it create an opposing force? • Consider whether gland seal steam is primarily for thrust control or for another purpose such as minimizing steam leakage at shaft penetrations.

✅ Before You Answer

• Identify whether a dummy piston / balance piston is associated with axial or radial forces on the rotor • Clarify in your mind the primary job of gland seals (what problem are they mainly solving?) • Check which option best describes a device that uses pressure area on a piston to oppose a force along the shaft.

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Question 1 of 20

The purpose of the reaction turbine dummy piston is to ________.

counteract and balance axial thrust produced by the turbine rotor

act in conjunction with gland seal steam to balance turbine thrust

assist in maintaining radial clearances

eliminate radial thrust caused by the pressure increases in the turbine stages

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Question 1 / 205eccefa0bacbc34ba4d470c1

Question 1 of 205eccefa0bacbc34ba4d470c1

The purpose of the reaction turbine dummy piston is to ________.

Back

Question 1 of 20

5eccefa0bacbc34ba4d470c1

The purpose of the reaction turbine dummy piston is to ________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed