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Processes Preliminary Test
1.
If ambient pressure decreases:
A.
GT useful power decreases and GT HR increases
B.
GT useful power decreases and GT HR remains approximately constant
C.
Both GT useful power and GT HR remain approximately constant
2.
Select the TRUE statement about steam turbine impulse stage:
A.
An impulse stage is usually more efficient than a reaction stage
B.
An impulse stage needs higher peripheral speed than a reaction stage
C.
The optimum value of ψ for an impulse stage is around 2.3
3.
Regarding the fuel gas system, which of the following sentences is TRUE?
A.
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.
B.
SRV and GCV are used together to control the fuel gas mass flow rate
C.
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.
4.
What is the pressure of the sealing steam?
A.
1.1 ÷ 1.3 bara.
B.
Atmospheric pressure.
C.
Condensing pressure.
5.
Which is the criterion used to define the maintenance intervals?
A.
Number of running hours
B.
Number of equivalent running hours and equivalent number of starts-stop sequences
C.
Number of equivalent running hours
6.
Which is the correct sense for "TMR"?
A.
A sort of technology of components used to build the hardware.
B.
A sort of Processor
C.
A type of architecture used to improve the reliability
7.
What is the main difference between UDH and PDH networks?
A.
UDH is used when PDH has a failure
B.
UDH is used for digital data exchange, PDH is used for analog data exchange
C.
UDH is used for GE devices communication, PDH is used for communication with external devices
8.
Auto-Reconfiguration feature allows to:
A.
Automatically download the I/O packs software after a replacement
B.
Automatically download the controller firmware after a replacement
C.
Automatically download the terminal board firmware after a replacement
9.
Is it possible to go from an alarm listed on the Alarm-viewer to the related logic in the ToolboxST?
A.
Yes, just with the right click on the alarm and then “go to definition in logic”
B.
No, Alarm-viewer and ToolboxST are not linked together.
C.
Yes, just with the right click on the alarm and then “Alarm Attributes”.
10.
What is the meaning of FSR?
A.
Flame Self Reset
B.
Fuel Stroke Reference
C.
Fire Safety Relay
11.
Vertical and horizontal XMAS tree are used in _
A.
Oil Sand applications
B.
Sub Sea applications
C.
Surface applications
12.
BOG compressors are used in _
A.
Gas Lift
B.
Pipeline
C.
LNG