Zusammenfassung der Ressource
Frage 1
Frage
An essential auxillary in a gas turbine system is
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regenerator
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starting motor
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intercooler
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waste heat boiler
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combustor
Frage 2
Frage
A gas turbine is started in the following sequence of operation
1. air is heated in the combustor
2. air is drawn into the compressor
3. exhaust gases expand through the turbine
4. air is exhausted to atmosphere or hrsg
Antworten
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1,2,3,4
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2,1,3,4
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4,2,3,1
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2,4,1,3
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3,1,2,4
Frage 3
Frage
Air choking in the high pressure end of the compressor is also termed:
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sputtering
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back-firing
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choking
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surging
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dead-heading
Frage 4
Frage
When starting a gas turbine in manual mode, what would be the first step
Frage 5
Frage
Water washing and adding chemicals to fuels that contain sodium or vanadium is primarily for
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reducing deposits on turbine blades
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reduce blade erosion
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lower exhaust gas temperatures
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reduce turbine blade erosion
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lower NOX emmisions
Frage 6
Frage
Major overhauls are performed on a gas turbine:
Frage 7
Frage
Which of the following components will reduce noise pollution from a gas turbine system:
1. inlet silencers
2. exhaust silencers
3. acoustic insulation
3. using axial air compressors
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1,2
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2,3,4
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1,2,4
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1,2,3
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1,2,3,4
Frage 8
Frage
Which interlocks need to be in the start position to start a gas turbine
1. oil pressure normal
2. dampers and ducting open
3. controls circuits energized
4. governer in start position
Antworten
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1,2
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2,3,4
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1,2,4
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1,2,3
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1,2,3,4
Frage 9
Frage
Minor servicing carried out on a gas turbine:
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is done monthly
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is done annualy
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may only allow some adjusting to the combustor unit
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will include power turbine blade replacement
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will include compressor balancing and mechanical maintenance
Frage 10
Frage
when inspecting the flame tube of a gas turbine during a turnaround the operator should check for
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distortion
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proper ignition
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air flow restrictions
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scaling
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corrosion salts
Frage 11
Frage
combustion unit inspections and maintenance includes
1. cleaning
2. ignition checks
3. adjusting fuel flows
4. igniters and retraction gear tested
Antworten
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1,2
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2,3,4
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1,2,4
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1,2,3
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1,2,3,4
Frage 12
Frage
The lubrication system on a gas turbine for be checked for:
1. leaks
2. water
3. dirt
4. metal particles
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1,2
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2,3,4
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1,2,4
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1,2,3
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1,2,3,4