Please answer Across a shock wave, from the supersonic side to the subsonic side

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Across a shock wave, from the supersonic side to the subsonic side, total pressure b. stays the same c, increases a, decreases Across a shock wave, from the supersonic side to the subsonic side, total temperature: b, stays the same C, increases a, decreases 3. Across a shock wave, from the supersonic side to the subsonic side, s temperature stays the same b. C. increases decreases Across a shock wave, from the supersonic side to the subsonic side, static pressure: b. stays the same C. increases decreases In a converging nozzle, if the nozzle is chocked, increasing the inlet total temperature a. decrease b. stay the same c. increase will cause the flowrate to 6. In a converging nozzle, if the nozzle is chocked, further decreases in the back plane b, stay the same c. increase pressure will cause the flowrate to: a. decrease In a converging nozzle, if the nozzle is chocked, decreasing the inlet total pressure will cause the flowrate to: a. decrease b. stay the same c. increase In a diverging area duct, if the pressure is decreasing the flow is (subsonic/supersonic) and the velocity is (increasing decreasing) In a converging area duct, if the pressure is decreasing the flow is (subsonic supersonic) and the velocity is (increasing/decreasing) 10. The coefficient of performance for a heat pump is defined as: b. Win/Qout a. Wout/Qin c. Qin/Win d. Qout/Win 11. The coefficient of performance for a refigerator is defined as: b. Win/Qout a. Wout/Qin c. Qin/Win d. Qout/Win 12. Name the four processes for a refrigeration cycle (counts 2) 14. For a traveling shock wave in terms of VI and V2, Vgas

Explanation / Answer

1) c

2) c

3) a

4) a

5) c

6) a)

7) a)

8) supersonic, increasing

9) subsonic, decreasing

10) a

11) c)

12) Isothermal heat transfer from cold medium to refrigerant (Evaporator)

Isentropic (Reversible adiabatic) compression

Isothermal heat rejection (condenser)

Isentropic Expansion

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