Two technicians are discussing the measurement of antifreeze concentration in coolant.Technician A uses a hydrometer to test the coolant.Technician B uses a refractometer to test the coolant.Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct because a hydrometer and a refractometer are both valid tools for measuring the concentration of antifreeze in coolant. A hydrometer measures the specific gravity of the liquid, while a refractometer measures how light bends, or refracts, through the liquid.

Two Technicians Are Discussing the Measurement of Antifreeze Concentration in Coolant.Technician