In addition to improper brush pressure or...

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Question 1 of 205eccefa3bacbc34ba4d48091

In addition to improper brush pressure or seating, what can result in excessive sparking at the brushes of a DC propulsion motor?

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5eccefa3bacbc34ba4d48091

In addition to improper brush pressure or seating, what can result in excessive sparking at the brushes of a DC propulsion motor?

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🔍 Key Concepts

• DC motor brush sparking causes beyond mechanical brush issues • Relationship between armature polarity, field polarity, and the neutral plane • How commutation is affected when magnetic fields are out of proper alignment

💭 Think About

• Think about which option would cause the current in the armature coils to reverse at the wrong point as they pass under the brushes • Which condition would most directly disturb the location of the true neutral plane inside the motor? • Ask yourself: which choice represents an electrical/magnetic misalignment that would make proper commutation almost impossible, even with good brush pressure and seating?

✅ Before You Answer

• Identify which options deal with electrical/magnetic polarity rather than just operating condition • Consider how reversing polarity of either the armature or the field affects the interaction at the commutator • Verify which condition is specifically tied to the neutral plane and commutation, and not just load variation

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Question 1 of 205eccefa3bacbc34ba4d48091

In addition to improper brush pressure or seating, what can result in excessive sparking at the brushes of a DC propulsion motor?

Back

Question 1 of 20

5eccefa3bacbc34ba4d48091

In addition to improper brush pressure or seating, what can result in excessive sparking at the brushes of a DC propulsion 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