Which of the instruments listed is used to...

Question 1 / 205eccefa3bacbc34ba4d47f40

Question 1 of 205eccefa3bacbc34ba4d47f40

Which of the instruments listed is used to check insulation resistance?

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Question 1 of 20

5eccefa3bacbc34ba4d47f40

Which of the instruments listed is used to check insulation resistance?

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🔍 Key Concepts

• Insulation resistance and what it measures in electrical systems • Which instruments are designed to measure very high resistance values (in megohms) • Typical uses of magnetos, dynamometers, and rheostats

💭 Think About

• Which of these devices is specifically built to measure resistance, and not to generate power, control current, or measure force? • When checking insulation, are you dealing with low resistance or extremely high resistance between conductors and ground? • Does the instrument’s name hint at the size/range of resistance it measures?

✅ Before You Answer

• Identify which option is an instrument for measuring electrical resistance rather than controlling or producing it • Recall that insulation resistance is normally measured in megohms (MΩ), not in ohms • Eliminate any devices whose primary function is mechanical measurement or power generation rather than resistance testing

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Question 1 of 20

Which of the instruments listed is used to check insulation resistance?

Magneto

Megohmmeter

Dynamometer

Rheostat

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