An open in the armature of a DC motor is...

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Question 1 of 205eccefa4bacbc34ba4d4853b

An open in the armature of a DC motor is suspected, but is not found by visual inspection of the commutator. What would be the next step in troubleshooting this problem?

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5eccefa4bacbc34ba4d4853b

An open in the armature of a DC motor is suspected, but is not found by visual inspection of the commutator. What would be the next step in troubleshooting this problem?

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🔍 Key Concepts

• DC motor armature faults such as opens vs grounds vs insulation failures • Purpose and method of a bar-to-bar test on a commutator • Difference between visual inspection, insulation resistance tests, and ground tests

💭 Think About

• Ask yourself which test is specifically designed to locate an open in the armature winding rather than a ground or insulation breakdown • Consider the logical sequence: after you have already inspected the commutator visually, what is the next more precise electrical test that targets individual commutator segments? • Match each choice with the type of fault it is best suited to detect: open circuit, ground fault, or insulation resistance problem

✅ Before You Answer

• Be clear on what an open circuit fault is and how it behaves electrically compared with a ground fault • Verify which method checks between adjacent commutator bars rather than between winding and ground • Check which tests in the options are most specific to locating a broken/loose armature coil connection instead of general insulation testing

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Question 1 of 205eccefa4bacbc34ba4d4853b

An open in the armature of a DC motor is suspected, but is not found by visual inspection of the commutator. What would be the next step in troubleshooting this problem?

Back

Question 1 of 20

5eccefa4bacbc34ba4d4853b

An open in the armature of a DC motor is suspected, but is not found by visual inspection of the commutator. What would be the next step in troubleshooting this problem?

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