The electrical officer is about to check the...

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Question 1 of 205eccefa4bacbc34ba4d4842f

The electrical officer is about to check the insulation resistance. When advice should you give to him as to what temperature and or when he should check the motor insulation?

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5eccefa4bacbc34ba4d4842f

The electrical officer is about to check the insulation resistance. When advice should you give to him as to what temperature and or when he should check the motor insulation?

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🔍 Key Concepts

• Effect of temperature on insulation resistance of electric motors • When insulation resistance tests (megger tests) are normally carried out (e.g., before/after operation, during maintenance) • Why working on or testing live equipment is unsafe and generally prohibited

💭 Think About

• How does insulation resistance typically change as temperature increases or decreases? Think about whether higher temperature makes insulation more or less resistive. • In practice, when would you get a meaningful, comparable reading of insulation resistance: right after running the motor when it’s hot, after it cools, or while it is energized? • Which options clearly conflict with basic electrical safety procedures on board a ship?

✅ Before You Answer

• Eliminate any choice that involves working on live equipment without strict test procedures and protections. • Consider which option would give you a safe and repeatable condition for trending insulation resistance over time. • Think about whether an overheated motor will tend to show higher or lower insulation resistance, and which answer choice reflects that behavior correctly.

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Question 1 of 205eccefa4bacbc34ba4d4842f

The electrical officer is about to check the insulation resistance. When advice should you give to him as to what temperature and or when he should check the motor insulation?

Back

Question 1 of 20

5eccefa4bacbc34ba4d4842f

The electrical officer is about to check the insulation resistance. When advice should you give to him as to what temperature and or when he should check the motor insulation?

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