Normal Shocks MCQ

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• Rayleigh line represents the locus of states with same impulse pressure and mass velocity.
  ক

  true

  খ

  false
• The impulse pressure(I) is given by
  ক

  F/A

  খ

  p + (density)(V2)

  গ

  p + (G2)/(density)

  ঘ

  all of the mentioned
• Which of the following is true about adiabatic flow in constant area duct with friction?
  ক

  it has constant G

  খ

  it has constant ho

  গ

  it follows Fanno line

  ঘ

  all of the mentioned
• The end states of normal shock must ____ Fanno line.
  ক

  lie below

  খ

  lie above

  গ

  lie on

  ঘ

  none of the mentioned
• Fanno line represents the locus of points with same mass velocity and stagnation enthalpy.
  ক

  true

  খ

  false
• The impulse function is given by
  ক

  F = p*A + (density)*A*(V2)

  খ

  F = p*A + (density)*A*V

  গ

  F = p*A + (density)*A*sqrt(V)

  ঘ

  none of the mentioned
• When flow passes from supersonic to subsonic state,
  ক

  pressure increases

  খ

  velocity decreases

  গ

  both of the mentioned

  ঘ

  all of the mentioned
• 3.Within the mean free path of molecule, flow passes from
  ক

  supersonic state

  খ

  subsonic state

  গ

  subsonic to supersonic state

  ঘ

  supersonic to subsonic state
• Normal shocks can be treated as shock waves parallel to the flow.
  ক

  true

  খ

  false
• Shock waves are highly localized irreversiblities in flow.
  ক

  true

  খ

  false