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1- In c-d nozzle, after the throat the relation between the velocity of air flow (1) and area (1) is given by: V-100+2012. This means that the flow at exit is.... (A) Sonic (B) subsonic (C) supersonic (D) not specified 2- After the expansion waves, the quantity that decreases is the: (A) Density (B) stagnation pressure (C) Mach number (D) (A) and (C) 3- For a converging nozzle, when the assumed critical pressure (p) is greater than the ambient pressure, the nozzle is: (A) Mc <1 (B) McI (C) chocked (D) (A) and (C) 4- The stagnation temperature To remains constant across the shock wave because To represents.... (A) thermal energy (B) total energy (C) kinetic energy 5- The expansion waves are a series of ...... expansion processes. (A) isothermal (B) adiabatic (C) isentropic 6- For a flow through a c-d nozzle, when the flow is maximum, then the critical arca (A*) is (A) equal to throat area (B) greater than throat area (C) less than the throat area 7- Over a convex corner, the most commonly occurring oblique shock wave is (A) weak (B) strong (C) critical (D) both (A) and (B)

1- In c-d nozzle, after the throat the relation between the velocity of air flow (1) and area (1) is given by: V-100+2012. This means that the flow at exit is.... (A) Sonic (B) subsonic (C) supersonic (D) not specified 2- After the expansion waves, the quantity that decreases is the: (A) Density (B) stagnation pressure (C) Mach number (D) (A) and (C) 3- For a converging nozzle, when the assumed critical pressure (p) is greater than the ambient pressure, the nozzle is: (A) Mc <1 (B) McI (C) chocked (D) (A) and (C) 4- The stagnation temperature To remains constant across the shock wave because To represents.... (A) thermal energy (B) total energy (C) kinetic energy 5- The expansion waves are a series of ...... expansion processes. (A) isothermal (B) adiabatic (C) isentropic 6- For a flow through a c-d nozzle, when the flow is maximum, then the critical arca (A*) is (A) equal to throat area (B) greater than throat area (C) less than the throat area 7- Over a convex corner, the most commonly occurring oblique shock wave is (A) weak (B) strong (C) critical (D) both (A) and (B)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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1- In c-d nozzle, after the throat the relation between the velocity of air flow (1) and area (1) is given by: V-100+2012. This means that the flow at exit is.... (A) Sonic (B) subsonic (C) supersonic (D) not specified 2- After the expansion waves, the quantity that decreases is the: (A) Density (B) stagnation pressure (C) Mach number (D) (A) and (C) 3- For a converging nozzle, when the assumed critical pressure (p) is greater than the ambient pressure, the nozzle is: (A) Mc <1 (B) McI (C) chocked (D) (A) and (C) 4- The stagnation temperature To remains constant across the shock wave because To represents.... (A) thermal energy (B) total energy (C) kinetic energy 5- The expansion waves are a series of ...... expansion processes. (A) isothermal (B) adiabatic (C) isentropic 6- For a flow through a c-d nozzle, when the flow is maximum, then the critical arca (A*) is (A) equal to throat area (B) greater than throat area (C) less than the throat area 7- Over a convex corner, the most commonly occurring oblique shock wave is (A) weak (B) strong (C) critical (D) both (A) and (B)
Transcribed Image Text:1- In c-d nozzle, after the throat the relation between the velocity of air flow (1) and area (1) is given by: V-100+2012. This means that the flow at exit is.... (A) Sonic (B) subsonic (C) supersonic (D) not specified 2- After the expansion waves, the quantity that decreases is the: (A) Density (B) stagnation pressure (C) Mach number (D) (A) and (C) 3- For a converging nozzle, when the assumed critical pressure (p) is greater than the ambient pressure, the nozzle is: (A) Mc <1 (B) McI (C) chocked (D) (A) and (C) 4- The stagnation temperature To remains constant across the shock wave because To represents.... (A) thermal energy (B) total energy (C) kinetic energy 5- The expansion waves are a series of ...... expansion processes. (A) isothermal (B) adiabatic (C) isentropic 6- For a flow through a c-d nozzle, when the flow is maximum, then the critical arca (A*) is (A) equal to throat area (B) greater than throat area (C) less than the throat area 7- Over a convex corner, the most commonly occurring oblique shock wave is (A) weak (B) strong (C) critical (D) both (A) and (B)
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