When using a megohmmeter to test insulation,...

Question 1 / 205eccefa4bacbc34ba4d48409

Question 1 of 205eccefa4bacbc34ba4d48409

When using a megohmmeter to test insulation, what will be the indication of good insulation?

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Question 1 of 20

5eccefa4bacbc34ba4d48409

When using a megohmmeter to test insulation, what will be the indication of good insulation?

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🔍 Key Concepts

• Megohmmeter operation – it applies a high DC voltage and measures insulation resistance over a short period of time • Insulation as a capacitor – at first the insulation charges, then the reading should stabilize if the insulation is good • Difference between stable high resistance vs. erratic or falling readings that suggest leakage

💭 Think About

• When you first connect a megohmmeter to a dry, healthy insulation system, what happens to the pointer as the insulation charges and then reaches steady state? • Which option best describes a reading that settles at a high resistance value instead of continuing to drop or fluctuate? • If the insulation were damp or deteriorated, how would the pointer likely behave differently over time?

✅ Before You Answer

• Make sure the correct choice describes a high resistance reading that stabilizes, not one that keeps dropping • Check which option shows a temporary change followed by a steady, reliable indication of resistance • Eliminate any option that suggests continuous dips, kicks, or instability rather than a stable final value

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Question 1 of 20

When using a megohmmeter to test insulation, what will be the indication of good insulation?

slight kicks of the needle down scale

a downward dip followed by a gradual climb to the true resistance value

a gradual rise in the pointer reading at the outset

the initial dip of the pointer

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Question 1 / 205eccefa4bacbc34ba4d48409

Question 1 of 205eccefa4bacbc34ba4d48409

When using a megohmmeter to test insulation, what will be the indication of good insulation?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48409

When using a megohmmeter to test insulation, what will be the indication of good 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