Practice question

What is the purpose of brake fluid in a hydraulic braking system?

It transfers hydraulic pressure from the brake pedal to the wheel brake calipers/cylinders.
It cools the engine block during braking.
It circulates through the brake discs to carry heat away from them.
It cleans exhaust gases before emissions.

Answer: A — It transfers hydraulic pressure from the brake pedal to the wheel brake calipers/cylinders.

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