Home > Thermodynamics > Quizzes > Thermodynamics Practice Test: Gas Power Cycles
Thermodynamics Practice Test: Gas Power Cycles
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 13% Most missed: “For the same compression ratio and work capacity, Brayton cycle handles ____ ran…”
Gas Power Cycles topics include: Carnot cycle, stirling circle, brayton cycle, diesel cycle, otto cycle and aircraft propulsion. Here are some basics about gas power cycles: Carnot cycle: The most basic gas power cycle, which acts as a benchmark for all engine cycles. The efficiency of every engine cycle is compared against the Carnot Cycle. Gas-generator cycle: Also called the open cycle, this cycle takes a small amount of fuel and oxidizer from the main flow to feed a burner called a gas generator. The hot gas from the generator passes through a turbine to generate power for the pumps... Show more
Thermodynamics Practice Test: Gas Power Cycles
Time left 00:00
25 Questions

1. The auto-ignition
2. Which of the following statement is true for a regenerator?
3. The air-fuel ratio used in jet engine is very small.
4. The air or air-fuel mixture is ____ into cylinder through intake valve and ____ out of cylinder through exhaust valve.
5. The Diesel cycle consists of
6. The Otto cycle is the
7. Both Rankine cycle and Brayton cycle consists of two reversible isochores and two reversible adiabatics.
8. In CI engines,
9. For the same compression ratio, the efficiency of Brayton cycle is ____ the efficiency of Otto cycle.
10. When flying at high altitudes,
11. Which of the following is true about a regenerator?
12. The optimum value of pressure ratio at which work capacity becomes maximum is given by
13. Which of the following statement is true?
14. In a gas power cycle,
15. The efficiency of Otto cycle is given by (rk is the compression ratio)
16. A gas turbine power plant uses
17. The intake and exhaust processes are not considered in the p-V diagram of Otto cycle.
18. The compression ratio is a pressure ratio.
19. For Brayton cycle, average specific volume of air that compressor handles is ____ the same of gas in a gas turbine.
20. The thrust developed in turbojet engine is the
21. The correct sequence of processes in CI engine is
22. The processes in compressor, turbine, diffuser and nozzle are
23. A gasoline engine has a volumetric compression ratio of 10. Find the overall cycle efficiency.
24. The distance between TDC and BDC is called ____
25. As the pressure ratio increases, the efficiency steadily ____