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

Discussion

An extreme pressure additive is distinguished from an ordinary anti-wear additive by acting

  • A.by physical adsorption at ambient temperature
  • B.by raising the bulk viscosity of the oil
  • C.by lowering the oil's cloud and pour points
  • D.through chemical reaction at high contact temperature

Answer: D

Sulphur, chlorine or phosphorus compounds decompose only at the hot spots of a heavily loaded contact and build a sacrificial inorganic film there. Below that temperature they are inactive, which is why they are reserved for severe duty.

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

Post your comment

Please log in or register to post a comment.