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Question 1 of 205eccefa3bacbc34ba4d480a3

What is the most effective method of locating a loose commutator bar in a D.C. motor?

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5eccefa3bacbc34ba4d480a3

What is the most effective method of locating a loose commutator bar in a D.C. motor?

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🔍 Key Concepts

• Function of a commutator in a D.C. motor and what happens when a bar is loose • How vibration, sound, and movement can indicate looseness in mechanical/electrical parts • Practical methods used by marine electricians to find defects without disassembling equipment

💭 Think About

• Think about which method would most clearly show a difference between a tight, secure bar and a loose bar while the motor is at rest and safe to work on • Consider which option provides a clear, repeatable indication (such as a difference in feel or sound) rather than relying only on sight or excessive force • Ask yourself which method is commonly used in practice to find loose parts in electrical machines like motors and generators

✅ Before You Answer

• Verify which choice allows you to compare each bar against its neighbors in a simple, quick way • Check which method avoids applying excessive mechanical stress to the commutator surface or bars • Think about which technique would make a loose bar stand out clearly by producing a different feedback (such as a distinct response) compared to properly secured bars

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Question 1 of 205eccefa3bacbc34ba4d480a3

What is the most effective method of locating a loose commutator bar in a D.C. motor?

Back

Question 1 of 20

5eccefa3bacbc34ba4d480a3

What is the most effective method of locating a loose commutator bar in a D.C. 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