What type of propulsor is typically used in...

Question 1 / 205eccef9cbacbc34ba4d45ab1

Question 1 of 205eccef9cbacbc34ba4d45ab1

What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

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5eccef9cbacbc34ba4d45ab1

What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

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🔍 Key Concepts

• Bow thruster design and how thrust is controlled in a tunnel thruster • Difference between fixed-pitch vs controllable-pitch propellers in terms of starting load on the motor • How electric motor starting current is affected by starting torque and load

💭 Think About

• Think about what happens to an electric motor’s current draw when it tries to start under full propeller load versus a reduced load • Consider which type of propulsor allows you to adjust or reduce the hydrodynamic load on the blades at the moment of starting • Ask yourself: which option is commonly associated with tunnel thrusters on larger ships where electrical load management is critical?

✅ Before You Answer

• Verify which propulsor type can change blade pitch without changing RPM, allowing low-load start and then increased thrust • Confirm which types listed are basically just different constructions of a fixed-pitch propeller and therefore do NOT reduce starting load • Make sure the option you choose is actually used in tunnel bow thrusters and not primarily in specialized propulsion systems like Voith-Schneider or main propulsion wheels

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Question 1 of 20

What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

Fixed-pitch propeller

Detachable-blade (built-up) propeller

Cycloidal propeller

Controllable-pitch propeller

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Question 1 / 205eccef9cbacbc34ba4d45ab1

Question 1 of 205eccef9cbacbc34ba4d45ab1

What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

Back

Question 1 of 20

5eccef9cbacbc34ba4d45ab1

What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

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