1) the steady flow reversible work equation wrev=-v(P2-P1)-delta pe- delta ke) a

Question

1) the steady flow reversible work equation wrev=-v(P2-P1)-delta pe- delta ke) applies to:

a. any substance

b. only compressible substance like steel

c. only incompressible substance like liquid water

d.only compressible substance like air

2) for the conveyance of a given mass of fluid between two pressures, the work inout to a compressor can be reduced

a. increasing the inlet temperature

b. converting the gas of vapor to a liquid
c. maintaining isothermal conditions through intercooling
d. maintaing adiabatic conditions through insulation]

3)Isentropic efficiency is also called
a. thermal efficiency
b. second law efficiency
c. coeffiecient of performace efficiency
d. adiabatic efficiency

4) a typical isentropic efficiency for a turbine is
a. < then 50%
b. 50% to 70%
c. 70% to 90%
d. > then 90%

5) Isothermal efficiency applies to
a. Turbines
b. Pumps or compressors
c. Noczzle or diffuser
d. nothing there is no such tthing called an isothermal efficiency

6) The entropy generation term (sgen)
a. Represents the generated within the system boundary
b. Represents the generated outside the system boundary
c. Does not depend on the system boundary
d.only includes entropy transported across the system boundary

Explanation / Answer

1.a 2.c 3.b 4.c 5.a 6.a

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