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Ophthalmic Assistant

Category - Medical Equipment

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If an instrument with moving parts requires lubrication, what substance can be used?

Peanut butter
Petroleum jelly
Motor oil
Molasses

Explanation

Answer: B - Petroleum jelly

If an instrument with moving parts requires lubrication, petroleum jelly can be used. Gears or sliding surfaces are most likely to require lubricant in order to move smoothly.

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