The jacking/turning gear mechanism of a main...

Question 1 / 205eccefa1bacbc34ba4d471a5

Question 1 of 205eccefa1bacbc34ba4d471a5

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.

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Question 1 of 20

5eccefa1bacbc34ba4d471a5

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.

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🔍 Key Concepts

• Function of a jacking/turning gear on large main propulsion turbines • Which shaft or gear in a reduction gear train turns at the slowest speed but with highest torque • Why slow, controlled rotation during maintenance or warm‑up must be applied to a particular part of the gear train

💭 Think About

• In a geared turbine reduction train, trace the power flow from the turbine to the propeller and identify where speed is lowest and torque is highest. • Ask yourself which component it is safest and most effective to rotate slowly when barring the engine over for inspections or warm‑up. • Consider what would happen to the rest of the gear train if you apply the jacking gear’s force at the wrong (too high‑speed) point.

✅ Before You Answer

• Identify which choice corresponds to the slowest rotating, highest torque member of the reduction gear train. • Verify which component is directly connected to the propeller shaft / output side of the reduction gear. • Eliminate any option that is primarily a high‑speed rotor rather than the main low‑speed output member.

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Question 1 of 20

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.

high-speed pinion rotor

low-speed gear rotor

bull gear

low-speed pinion rotor

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Question 1 / 205eccefa1bacbc34ba4d471a5

Question 1 of 205eccefa1bacbc34ba4d471a5

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.

Back

Question 1 of 20

5eccefa1bacbc34ba4d471a5

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.

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