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Which of the following instrument is used to measure the antifreeze mixture in a coolant of a vehicle?
  • a)
    Galvanometer
  • b)
    Voltmeter
  • c)
    Hydrometer
  • d)
    Refractometer
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following instrument is used to measure the antifreeze mi...
The correct answer is 
Refractometer.
Key Points
  • The instrument used to measure the antifreeze mixture in a coolant of a vehicle is Refractometer.
  • This refractometer is used for measuring the concentration and freezing temperature of ethylene glycol and propylene glycol which are used as antifreeze mixture for automobiles.
Additional Information
  • Galvanometer:
    • A galvanometer is an instrument for measuring small amounts of electric current in an electrical circuit.
  • Voltmeter:
    • A voltmeter is an instrument used for measuring the electric potential difference between two points in an electric circuit.
    • It is connected in parallel.
  • Hydrometer:
    • A hydrometer is an instrument used for measuring the density or relative density of liquids.
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Which of the following instrument is used to measure the antifreeze mixture in a coolant of a vehicle?a)Galvanometerb)Voltmeterc)Hydrometerd)RefractometerCorrect answer is option 'D'. Can you explain this answer?
Question Description
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