EO 1 Block 3 Main Turbine Flashcards
The purpose of the Main Turbine is to receive Main Steam and ______ _
A. utilize it to supply the 235 Auxiliary Steam Header
B. ensure the Reactor Coolant stays 20 °F subcooled
C. convert thermal energy to mechanical energy
D. control Reactor Coolant System pressure
C
One purpose of the main turbine is to receive HIGH pressure steam and convert the ___ _energy of the steam into ____ energy to drive the main generator rotor.
A. pressure; electrical
B. thermal; electrical
C. thermal; mechanical
D. pressure; mechanical
C
A FOUR (4) FLOW TURBINE is a turbine that has four (4):
A. Exhaust paths to the condenser.
B. Steam admission lines to the HP Turbine.
C. Times the steam flow of the LP Turbine.
D. Exhaust paths on the HP Turbine.
A
Steam exiting the High Pressure Turbine and prior to being admitted to the Moisture Separator Reheater is referred to as:
A. Auxiliary Steam
B. Extraction Steam
C. Cross Around Steam
D. Pegging Steam
C
Which ONE of the following identifies Main Turbine stages that Extraction Steam taps off?
A. 1,5,7,12
B. 2,4,6, 11
C. 4, 8, 10, 11
D. 6, 7,8, 12
D
Which ONE of the following identifies how the Main Turbine control valves will respond to a loss of Electro-Hydraulic-Control pressure?
A. Fail “as-is”
B. Open fully
C. Close fully
D. Go to 50% open
C
Which ONE of the following indicates the number of stages in the Main Turbine from inlet of the High Pressure Turbine to the Condenser?
A. 6
B. 13
C. 26
D. 32
B
The purpose of Extraction Steam is to:
A. Minimize steam velocity in the Low Press
ure Turbine.
B. Allow moisture removal in last stages of the turbine.
C. Supply heating of various steam plant loads.
D. Minimize condensate flow from turbine blades.
C
Extraction Steam from the High Pressure Turbine is drawn from which stages?
A. 1 st and 6th stages
B. 2nd and 6th stages
C. 1st and 2nd stages
D. 1st, 2nd, and 6th stages
B
Which ONE of the following indicates the number of stages in the High Pressure turbine?
A. 2
B. 6
C. 13
D. 32
B
Which ONE of the following identifies the component that regulates steam flow to the High Pressure Turbine?
A. Main Turbine Stop Valves (SV)
B. Main Turbine Control Valves (CV)
C. Main Steam Isolation Valves (MSIV)
D. Main Turbine Combine Intercept Valves (CIV)
B
Which ONE of the following properly arranges flowpath components from the Once Through Steam Generator to the Main Condenser?
A. - Main Steam Isolation Valve
- Turbine Control Valve
- Main Steam Line Non-Return Valve
- High Pressure Turbine
- Moisture Separator Reheater.
B. - Turbine Stop Valve
- Turbine Control Valve
- Moisture Separator Reheater
- High Pressure Turbine
- Low Pressure Turbine.
C. - Main Steam Isolation Valve
- Turbine Stop Valve
- High Pressure Turbine
- Low Pressure Turbine
- Moisture Separator Reheater.
D. - Main Steam Line Non-Return Valve
- Turbine Stop Valve
- High Pressure Turbine
- Moisture Separator Reheater
- Combined Intercept Valve.
D
Extraction Steam from the Low Pressure Turbines used to supply the Number 2 Low Pressure Feedwater Heaters is from which turbine stage?
A. 7th stage
B. 8th stage
C. 10th stage
D. 12th stage
C
Extraction Steam from the Low Pressure Turbine is drawn from which of the following combinations of stages?
A. 6th, 9th, and 12th stages.
B. 7th, 8th, 10th, and 12th stages.
C. 6th, 7th, 10th, and 12th stages.
D. 7th, 8th, 9th, and 10th stages.
B
Extraction Steam from the Low Pressure Turbines supplies steam to the ___ _
A. Main Feed Pump Turbine
B. Low Pressure Feed Water Heaters
C. #5 High Pressure Feed Water Heaters
D. Moisture Separator Reheater second stage
B
The High Pressure Turbine directly exhausts into the ____ _
A. Moisture Separator Reheaters
B. Low Pressure condenser
C. High Pressure condenser
D. Low Pressure turbine
A
Extraction Steam from the High Pressure Turbine is drawn from which stages?
A. 1 st and 6th stages
B. 2nd and 6th stages
C. 1 st and 2nd stages
D. 1st, 2nd, and 6th stages
B