Question
The figure shows a purely convergent nozzle with a steady, inviscid compressible flow of an ideal gas with constant thermophysical properties operating under choked condition. The exit plane shown in the figure is located within the nozzle. If the inlet pressure (P0) is increased while keeping the back pressure(Pback) unchanged, which of the following statements is/are true?
Options :
Mass flow rate through the nozzle will remain unchanged
Mach number at the exit plane of the nozzle will remain unchanged at unity
Mass flow rate through the nozzle will increase
Mach number at the exit plane of the nozzle will become more than unity
Answer :
Mach number at the exit plane of the nozzle will remain unchanged at unity
,Mass flow rate through the nozzle will increase
Solution :
(Hence on increasing Po, mass flow rate will increase)
Mach number at exit place of nozzle will remain unchanged at unity because of choked condition.
Copyright © 2025 Test Academy All Rights Reserved