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Processes Preliminary Test
RETURN TO KNOWLEDGE TEST SELECTION
If ambient pressure decreases:
GT useful power decreases and GT HR increases
GT useful power decreases and GT HR remains approximately constant
Both GT useful power and GT HR remain approximately constant
Select the TRUE statement about steam turbine impulse stage:
An impulse stage is usually more efficient than a reaction stage
An impulse stage needs higher peripheral speed than a reaction stage
The optimum value of ψ for an impulse stage is around 2.3
Regarding the fuel gas system, which of the following sentences is TRUE?
The SRV valve is used to cut the fuel gas supply out while the GCV controls the mass flow rate of the gas fuel to feed the GT.
SRV and GCV are used together to control the fuel gas mass flow rate
The SRV is used to cut the fuel gas out in case of trip and to keep the inter-valve pressure constant during the operation of the GT, to ensure an easier control of the fuel mass flow rate through the GCV.
What is the pressure of the sealing steam?
1.1 ÷ 1.3 bara.
Which is the criterion used to define the maintenance intervals?
Number of running hours
Number of equivalent running hours and equivalent number of starts-stop sequences
Number of equivalent running hours
Which is the correct sense for "TMR"?
A sort of technology of components used to build the hardware.
A sort of Processor
A type of architecture used to improve the reliability
What is the main difference between UDH and PDH networks?
UDH is used when PDH has a failure
UDH is used for digital data exchange, PDH is used for analog data exchange
UDH is used for GE devices communication, PDH is used for communication with external devices
Auto-Reconfiguration feature allows to:
Automatically download the I/O packs software after a replacement
Automatically download the controller firmware after a replacement
Automatically download the terminal board firmware after a replacement
Is it possible to go from an alarm listed on the Alarm-viewer to the related logic in the ToolboxST?
Yes, just with the right click on the alarm and then “go to definition in logic”
No, Alarm-viewer and ToolboxST are not linked together.
Yes, just with the right click on the alarm and then “Alarm Attributes”.
What is the meaning of FSR?
Flame Self Reset
Fuel Stroke Reference
Fire Safety Relay
Vertical and horizontal XMAS tree are used in _
Oil Sand applications
Sub Sea applications
BOG compressors are used in _
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