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Quiz

4.4 Gas Turbine Principles and Design

TRAVIS CANNING 10 Fragen

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  1. 1In the combustors of a gas turbine, how much air usually bypasses the combustion chambers:
    1. A90%
    2. B80%
    3. C60%
    4. D50%
    5. E20%
  2. 2The disadvantages of using a regenerator in a gas turbine cycle are:
    1. Heating surfaces become coated and must be cleaned
    2. Increased capital costs
    3. It produces a pressure drop through the system
    4. The temperature drop through the system will be reduced
    1. A2,3
    2. B1,2,4
    3. C1,3,4
    4. D2,3,4
    5. E1,2,3,4
  3. 3Maximum power achieved by a gas turbine as a function of
    1. AThe number of turbine stops and starts every year
    2. BThe number of times base load power output is exceeded
    3. CThe number of times peak load is obtained in a year
    4. DThe number of times operational limits are exceeded
    5. ELife expectancy of hot gas components
  4. 4The regenerator of a gas turbine cycle is a:
    1. Asecond combustor
    2. Bheat exchanger
    3. CVessel used to transfer heat from the exhaust gas to the working fluid before compression occurs
    4. DIncrease the pressure of the working fluid in the system
    5. EIncrease the temperature of the combustor's outlet
  5. 5The gas turbine system is ideal:
    1. AFor large generator systems
    2. BTo be used over a steam turbine
    3. CTo be used for unmanned and remote locations
    4. DFor all applications of a process plant
    5. EFor large gas plant
  6. 6The advantages of a dual shaft gas turbine arrangement are:
    1. Greater flexibility
    2. It is cheaper
    3. Smaller starting motors may be used
    4. High pressures and temperatures may be obtained
    1. A1,2
    2. B1,3
    3. C2,3
    4. D2,4
    5. E1,4
  7. 7Control of a gas turbine is accomplished by:
    1. AVarying the loading station
    2. BThe power turbine all speed governor
    3. CVarying load on the generator
    4. DVarying the fuel flow
    5. EControlling the shaft speed
  8. 8The turbine exit gas temperatures will be a maximum of:
    1. A600 deg C
    2. B700 deg C
    3. C750 deg C
    4. D800 deg C
    5. E850 deg C
  9. 9Reducing gears are used with gas turbines to:
    1. AControl the speed of the power turbine
    2. BDrive slower lube oil pumps
    3. CReduce turbine speed before shutdown
    4. DAchieve desired speed of the load
    5. EReduce horsepower requirements
  10. 10A closed cycle gas turbine system
    1. ADoes not use a starting motor
    2. BHas lower pressure used in system
    3. CWill use the same working fluid over again
    4. DMust use a cooler before the regeneration
    5. EHas a lower initial cost than that of the open cycle gas turbine

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Beschreibung
power engineering 3b2 Quiz am 4.4 Gas Turbine Principles and Design, erstellt von TRAVIS CANNING am 29/02/2016.
Sprache
English
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