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

Discussion

Equilibrium moisture content is the moisture at which

  • A.Drying begins
  • B.Germination stops
  • C.The grain reaches its bulk density maximum
  • D.The grain neither gains nor loses moisture

Answer: D

Correct answer: The grain neither gains nor loses moisture

Equilibrium moisture content is the value a grain settles at when held in air of a given temperature and relative humidity long enough that net moisture exchange stops. The vapour pressure of the water in the grain then equals that of the surrounding air.

It is a property of the pair, not of the grain alone: change the relative humidity and the equilibrium shifts. This is why safe storage is specified as a moisture content and a storage atmosphere, and why grain dried below the equilibrium value for its store will simply reabsorb moisture until it returns to it.

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

Post your comment

Please log in or register to post a comment.