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 compressible substances like liquid water
d. only compressible substance like air
2) For the conveyance of a given mass of fluid between two pressures, the work input to a compressor can be reduced
a. increasing the inlet temperature
b. converting the gas or vapor to a liquid
c.maintaining isothermal conditions through intercooling
d. maintaining adiabatic conditions through insulation
3) Isentropic efficiency is also called
a. thermal efficiency
b. second law efficiency
c. coefficient of performance efficiency
d. adiabatic efficiency
4) A typical isentropic is also called
a. less than 50%
b. 50 to 70%
c. 70 to 90%
d. Greater than 90%
5) Isothermal efficiency applies
a. Turbines
b. pumps or compressors
c. nozzle or diffusers
d. nothing, there is no such thing called an isothermal efficiency
6) The entropy generation term (Sgen)
a. Represents the entropy generated within the system boundary
b. represents the entropy generated outside the system boundary
c. does not depend on the system boundary
d. only includes entropy transported across the system boundary