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

Discussion

Assertion (A): Glass furnaces reverse the direction of firing every twenty minutes or so.
Reason (R): The regenerator chambers must alternate between storing heat and giving it up.

  • A.A is false but R is true
  • B.Both A and R are true, and R is the correct explanation of A
  • C.Both A and R are true, but R is not the correct explanation of A
  • D.A is true but R is false

Answer: B

Both are true and the reason gives the mechanism: one chamber is heated by the exhaust while the other preheats incoming air, and the roles must swap before the first is fully charged. The reversal is automatic and continuous.

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

Post your comment

Please log in or register to post a comment.