Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which property of glycol brake fluid requires periodic renewal?

  • A.It absorbs water from the atmosphere
  • B.It oxidises in service, which forms deposits that block the small passages within the master cylinder and valves
  • C.It evaporates
  • D.It loses viscosity with age, which allows it to leak past the seals within the master and wheel cylinders

Answer: A

Glycol fluid is hygroscopic and typically absorbs around three per cent water in two years, which lowers the boiling point drastically. That is why renewal is specified by time rather than mileage. Silicone fluid does not absorb water but has other drawbacks. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. Naming what changes and what stays the same is the reliable route through questions of this shape.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.