Topics:
Animal Refresher, Dairy Science
Instrument Used to Determine Density of Milk
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Question (English)
The specific gravity of milk is determined at 15.6°C by using Lactometer, but the density of milk is determined by:
- Hydrometer at 20°C ✓ Correct
- Lactometer at 20°C
- Refractometer
- Pycnometer at 15.6°C
Explanation:
Correct Answer: Hydrometer at 20°C
While Specific gravity of milk is determined by the Quevenne Lactometer at 15.6°C, the density of milk is measured by a Hydrometer at 20°C.
Instruments for Physical Properties of Milk
| Property | Instrument | Temperature |
|---|---|---|
| Specific gravity | Quevenne Lactometer | 15.6°C |
| Density | Hydrometer / Pycnometer | 20°C |
| Refractive index | Zeiss Refractometer | 20°C |
| Freezing point | Hortvet Cryoscope | — |
| Fat % | Gerber's Butyrometer | — |
| Viscosity | Viscometer | 25°C |
| Surface tension | — | 20°C (54.5 dyne/cm) |
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Dairy Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
