Multiple choice general knowledge science & technology

A hydrometer is used to determine

  1. a)relative humidity

  2. b)buoyant force

  3. c)specific gravity of liquids

  4. d)viscosity of liquids

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A hydrometer is an instrument that measures the specific gravity (relative density) of liquids. It floats at different levels depending on liquid density, giving a direct reading of specific gravity. It's commonly used to test battery acid concentration, urine density, and alcohol content in beverages.

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