4688101
Beschreibung
Quiz von TRAVIS CANNING, aktualisiert more than 1 year ago
|
Erstellt von TRAVIS CANNING
vor fast 9 Jahre
|
|
Frage 1
Frage
In the combustors of a gas turbine, how much air usually bypasses the combustion chambers:
Antworten
-
90%
-
80%
-
60%
-
50%
-
20%
Frage 2
Frage
The 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
Antworten
-
2,3
-
1,2,4
-
1,3,4
-
2,3,4
-
1,2,3,4
Frage 3
Frage
Maximum power achieved by a gas turbine as a function of
Antworten
-
The number of turbine stops and starts every year
-
The number of times base load power output is exceeded
-
The number of times peak load is obtained in a year
-
The number of times operational limits are exceeded
-
Life expectancy of hot gas components
Frage 4
Frage
The regenerator of a gas turbine cycle is a:
Antworten
-
second combustor
-
heat exchanger
-
Vessel used to transfer heat from the exhaust gas to the working fluid before compression occurs
-
Increase the pressure of the working fluid in the system
-
Increase the temperature of the combustor's outlet
Frage 5
Frage
The gas turbine system is ideal:
Antworten
-
For large generator systems
-
To be used over a steam turbine
-
To be used for unmanned and remote locations
-
For all applications of a process plant
-
For large gas plant
Frage 6
Frage
The 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
Antworten
-
1,2
-
1,3
-
2,3
-
2,4
-
1,4
Frage 7
Frage
Control of a gas turbine is accomplished by:
Antworten
-
Varying the loading station
-
The power turbine all speed governor
-
Varying load on the generator
-
Varying the fuel flow
-
Controlling the shaft speed
Frage 8
Frage
The turbine exit gas temperatures will be a maximum of:
Antworten
-
600 deg C
-
700 deg C
-
750 deg C
-
800 deg C
-
850 deg C
Frage 9
Frage
Reducing gears are used with gas turbines to:
Antworten
-
Control the speed of the power turbine
-
Drive slower lube oil pumps
-
Reduce turbine speed before shutdown
-
Achieve desired speed of the load
-
Reduce horsepower requirements
Frage 10
Frage
A closed cycle gas turbine system
Antworten
-
Does not use a starting motor
-
Has lower pressure used in system
-
Will use the same working fluid over again
-
Must use a cooler before the regeneration
-
Has a lower initial cost than that of the open cycle gas turbine
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.