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Steam and Gas Turbines Practice Test: The Power Plant
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Avg score: 77% Most missed: “Heavy frame engines have _______ pressure ratios.”
Power Plant topics include: Power plant, twin shaft plant, aircraft plant, dimension and dimensionless performance parameters for these plants, elementary gas dynamics and airfoil theory and properties of torque. Steam power plants: These plants consist of a boiler, steam turbine, generator, and other auxiliaries. The boiler generates steam at high pressure and high temperature by burning fossil fuels (such as coal, oil, or natural gas) or by using nuclear energy. The high-pressure steam is directed into a turbine, where the force of the steam's high-speed flow turns the blades. Combined... Show more
Steam and Gas Turbines Practice Test: The Power Plant
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25 Questions

1. In gas turbines _________ output igniters are used at the starting.
2. In order For turbine to get started air must start flowing ______ to start combustion.
3. Center of pressure lies exactly in ________ of the chord from the leading edge in a symmetrical air foil.
4. Power output of SGT700 plant is __________
5. ____________ when expressed in the form of dimensionless quantity is known as flow coefficient.
6. Dimensions of an airplane are effected by the engine _______
7. Corrected groups are __________ proportional to quasi dimension groups.
8. Continuous flow of fluid is called as _______
9. Slope between lift coefficient and angle of attack in a line is __________
10. Gas turbines used for mechanical drives have _______ shaft.
11. Torque speed characteristics of _______ shaft gas turbine is same as that of dual shaft gas turbine.
12. When altitude of earth is in between 90 km and 150 km Knudsen number can be in between 0.3 and _________
13. In a single shaft gas turbine output shaft is connected to a ________ speed compressor.
14. At low speeds the output is __________ in dual shaft gas turbine.
15. When gas turbine is required to operate continuously then power output is ________
16. Electronic igniters can be adjusted as per the required ________
17. Air foils when designed to work in water are called as _________
18. Distance traveled by the molecule in between successive collisions is called as __________
19. SGT700 produces _______ vibrations.
20. Aero derivative engines are very ________ in size.
21. Cambered air foils generate lift at ________ angle of attack.
22. Heavy frame engines are a type of _______ based gas turbines.
23. When inlet temperature is increased to 2600F then efficiency is about ____________
24. Fuel mass required in an airplane is _________ proportional to the take off mass value.
25. In a dual shaft gas turbine when the speed is about 60% the torque is increased to _______