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

Discussion

A variable area nozzle is essential on an afterburning engine because

  • A.The intake area must be matched
  • B.Reheat increases the volume flow
  • C.The exhaust becomes cooler
  • D.The pressure ratio falls sharply

Answer: B

Adding heat downstream of the turbine raises the gas temperature and hence its specific volume, so a fixed throat would choke and force the turbine to work against a raised back pressure. Opening the nozzle preserves the match while reheat is lit.

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

Post your comment

Please log in or register to post a comment.