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Question 1 of 205eccefa4bacbc34ba4d485ec

As shown in the illustration of a turbo-electric propulsion drive system, in terms of the operating characteristics of the propulsion motor, what statement is true? See illustration EL-0142.

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5eccefa4bacbc34ba4d485ec

As shown in the illustration of a turbo-electric propulsion drive system, in terms of the operating characteristics of the propulsion motor, what statement is true? See illustration EL-0142.

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🔍 Key Concepts

• Look at the illustration for the propulsion motor field and any separate excitation shown for the motor. • Review the basic difference between a synchronous motor and an induction motor, especially which one needs DC field excitation on the rotor. • Think about how large synchronous propulsion motors are typically started to avoid very high starting currents.

💭 Think About

• From the diagram, does the propulsion motor have a separately supplied DC field, or does it appear to be a simple induction motor with only a stator connection? What does that tell you about how it normally RUNS? • How are large synchronous motors usually brought up to speed: do they lock into synchronous speed immediately, or do they first behave like another type of motor and then transition? • Which answer choice best matches the idea of using one method for starting/accelerating and another characteristic for steady running in this kind of turbo-electric drive?

✅ Before You Answer

• Verify whether the presence of a propulsion motor field winding and exciter in the illustration matches a synchronous or induction motor design. • Check that the chosen option correctly reflects that a synchronous motor, once in normal operation, runs at constant synchronous speed with the supply frequency. • Eliminate any option that would require an induction motor to have a separate DC field excitation, since that is not how standard induction motors are built.

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Question 1 of 205eccefa4bacbc34ba4d485ec

As shown in the illustration of a turbo-electric propulsion drive system, in terms of the operating characteristics of the propulsion motor, what statement is true? See illustration EL-0142.

Back

Question 1 of 20

5eccefa4bacbc34ba4d485ec

As shown in the illustration of a turbo-electric propulsion drive system, in terms of the operating characteristics of the propulsion motor, what statement is true? See illustration EL-0142.

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?

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— No credit card needed