Practice question

Why is glycol-based brake fluid used in a vehicle's hydraulic braking system instead of water?

Brake fluid is cheaper than water
Brake fluid has a much higher boiling point and does not boil or compress under heavy braking heat
Brake fluid freezes faster to keep the brakes cool
Brake fluid increases the weight of the vehicle to help it stop

Answer: B — Brake fluid has a much higher boiling point and does not boil or compress under heavy braking heat

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