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Thermodynamics Practice Test: Gas Compressors
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Gas Compressors topics include: Work and rotary compression, volumetric and multi-stage expressions. A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps in that both increase the pressure on a fluid and both can move the fluid through a pipe.  Here are some types of gas compressors: CNG compressors: Used in the natural gas industry for transportation purposes. They compress the total volume of the gas, thereby increasing its pressure. Refrigeration compressors: Used in refrigeration systems to compress... Show more
Thermodynamics Practice Test: Gas Compressors
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15 Questions

1. A gas compression process is
2. If the gas is cooled during compression, work required will be ____ the adiabatic compression work.
3. The work of compression is ____ the shaft work.
4. Argon is kept in a 5 m3 tank at −30°C and 3 MPa. Determine the mass using compressibility factor.
5. The adiabatic efficiency of real compressor can be ____
6. A gas compression process is
7. For an adiabatic machine, work of compression is greater than enthalpy rise of gas.
8. The adiabatic efficiency is given by
9. In isothermal compression, all work done on gas is transformed into
10. For ɣ>n>1 and for same pressure ratio p2/p1, the maximum work is needed for
11. For an adiabatic machine, work of compression is greater than enthalpy rise of gas.
12. Which of the following is an advantage of cooling?
13. When isothermal compression is taken as ideal process, the energy imparted
14. Find the volume of ethylene having mass of 125 kg at 7.5 MPa and 296.5 K.
15. If the gas is cooled during compression, work required will be ____ the adiabatic compression work.