Brakes (A5)Question 53 of 120
Brake fluid is hygroscopic, which means it:
a.Absorbs moisture from the air over time
b.Repels all water
c.Conducts electricity
d.Expands when frozen
Explanation
Glycol-based brake fluid absorbs moisture, which lowers its boiling point and can cause corrosion and a spongy pedal from vapor under heavy braking. This is why periodic fluid replacement is recommended. Sealed containers and prompt cap replacement limit moisture uptake.
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