What is the most common type of AC service...

Question 1 / 270705eccefa4bacbc34ba4d48150

Question 1 of 270705eccefa4bacbc34ba4d48150

What is the most common type of AC service generator found aboard ship in terms of armature and field types?

Question 1 of 27070

What is the most common type of AC service generator found aboard ship in terms of armature and field types?

🔍 Key Concepts

• Difference between armature and field in an AC generator • Practical reasons for keeping high-current windings stationary on large shipboard generators • Typical construction of synchronous AC ship service generators (which part usually rotates?)

💭 Think About

• On a large ship, which is easier and safer: collecting high current from a moving part, or from a fixed part? How does that affect whether the armature should rotate or be stationary? • Which winding (field or armature) usually carries less current and is therefore more practical to place on the rotating part? • Think about how three‑phase power is taken off a generator: from a rotating coil through slip rings/brushes, or from stationary windings directly into cables?

✅ Before You Answer

• Identify which component (armature vs field) normally carries higher current in a ship service AC generator. • Decide which component is more practical to make the rotating part, considering mechanical wear and brush/slip‑ring issues. • Eliminate any choice that suggests an oscillatory motion if you know most ship generators rotate continuously rather than oscillate.

Question 1 of 27070

What is the most common type of AC service generator found aboard ship in terms of armature and field types?

stationary electromagnetic field, rotating armature type

stationary electromagnetic field, oscillatory armature type

stationary armature, oscillatory electromagnet field type

stationary armature, rotating electromagnetic field type

Question 1 / 270705eccefa4bacbc34ba4d48150

Question 1 of 270705eccefa4bacbc34ba4d48150

What is the most common type of AC service generator found aboard ship in terms of armature and field types?

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Question 1 of 27070

What is the most common type of AC service generator found aboard ship in terms of armature and field types?