Question

in a strut with a strut insert, some manufacturers fill the housing with ________ to allow heat from damping to be transferred to the outer housing more efficiently.
o a. a heavyweight oil
o b. grease
o c. water
o d. a lightweight oil

Explanation:

Heavyweight oil has better heat - transfer properties compared to grease (which is more for lubrication and not as good for heat transfer), water (which may not be suitable in some mechanical housings due to corrosion or other issues), and lightweight oil (which has less viscosity and may not hold heat as well for transfer). Heavyweight oil can act as a medium to transfer heat from damping to the outer housing more efficiently.

Answer:

a. A heavyweight oil