Multiple choice

Which instrument is used to measure the relative density of milk?

  1. Barometer

  2. Lactometer

  3. Manometer

  4. Thermoscope

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

A lactometer is a specialized hygrometer used to measure the density and purity of milk. Barometers measure atmospheric pressure, manometers measure pressure of fluids, and thermoscopes detect temperature changes.