The brake bleeding process removes ______ from the hydraulic brake system.

  1. Air
  2. Vacuum
  3. Excess fluid
  4. Excess pressure

Answer (Detailed Solution Below)

Option 1 : Air
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General Science for All Railway Exams Mock Test
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Detailed Solution

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In the brake bleeding process, the air in the fluid line is removed. The hydraulic brake system must be bled whenever the fluid line has been disconnected or air gets into the system. Air trapped in the system is compressible and does not permit pedal effort to be transmitted to the brakes. The system must be absolutely free from the air at all times

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