RCS and RCPs Flashcards
The function of the RCP anti-reverse rotation device is to:
A. Prevent a pump from starting if another pump in the opposite loop is running.
B. Stop a pump when it reached zero speed while the other pumps continue to operate.
C. Stop a pump in one loop if one of the pumps in the same loop stops.
D. Prevent excessive seal wear from occurring if the pump were allowed to spin backwards.
B. Stop a pump when it reached zero speed while the other pumps continue to operate.
Leakage past Reactor Coolant Pump Vapor Seal goes to the….
A. Reactor Drain Tank.
B. CVCS Holdup Tank.
C. Volume Control Tank.
D. Equipment Drain Tank.
A. Reactor Drain Tank.
The following condition exist:
1B RCP #2 Seal inlet pressure - 2200 psig
1B RCP #2 Seal outlet pressure - 500 psig
These parameters are indicative of a failure of:
A. #1 Seal.
B. #2 Seal.
C. #3 Seal.
D. #1 and #Seals.
A. #1 Seal.
(Note: Leakage from Seals should be reduced #1 to #2 by 42%, #2 to #3 by 42%, and #3 to VCT by 16%).
Given the following RCP Seal conditions: #1 Seal inlet pressure 2250 psig. #2 Seal inlet pressure 1200 psig. #2 Seal outlet pressure 80 psig. Seal bleed off flow 1.2 gpm. These readings are indicative of:
A. No seal failure.
B. #1 seal failure.
C. #2 seal failure.
D. #3 seal failure.
D. #3 seal failure.
(Note: Leakage from Seals should be reduced #1 to #2 by 42%, #2 to #3 by 42%, and #3 to VCT by 16%).
Given the following RCP seal conditions: #1 seal inlet pressure 2250 psig #2 seal inlet pressure 1150 psig #2 seal outlet pressure 1100 psig Which ONE of the following would cause these indications?
A. #1 seal has failed
B. #2 seal has failed
C. #1 and #2 seal have failed
D. # 3 seal has failed
B. #2 seal has failed
(Note: Leakage from Seals should be reduced #1 to #2 by 42%, #2 to #3 by 42%, and #3 to VCT by 16%).
Which one of the following is correct concerning the Reactor Coolant Pumps?
A. The Reactor Coolant Pumps discharge into the Steam Generators.
B. The Reactor Coolant Pumps are auto started on low pressure.
C. They add heat to the primary system during plant heat up.
D. The Reactor Coolant Pumps can be manually isolated from the loops.
C. They add heat to the primary system during plant heat up.
Which one of the following is correct concerning the Reactor Coolant Pumps?
A. The Reactor Coolant Pumps discharge into the Steam Generators.
B. The Reactor Coolant Pumps are auto started on low pressure.
C. They add heat to the primary system during plant heat up.
D. The Reactor Coolant Pumps can be manually isolated from the Loops.
C. They add heat to the primary system during plant heat up.
Which one of the following is a reason for the Reactor Coolant Pump (RCP) motor flywheel?
A. It provides the necessary inertia to prevent a pump trip on a loss of normal off site power.
B. It provides a downward force to the pump shaft to counter act the upward force from the impeller.
C. It increases the pump coast down time and helps remove the initial decay heat from the Reactor Coolant System (RCS) when electrical power to the motor is lost.
D. It provides a counter balance to the effects of a large pump impeller.
C. It increases the pump coast down time and helps remove the initial decay heat from the Reactor Coolant System (RCS) when electrical power to the motor is lost.
One function of the anti-reverse rotation device is to:
A. Withstand reverse torque in case of reversed power leads or during accident conditions.
B. Stop a pump in one loop if one of the pumps in the same loop stops.
C. Prevent a pump from starting if another pump in the opposite loop is running.
D. Prevent excessive seal water from occurring if the pump were allowed to spin backwards.
A. Withstand reverse torque in case of reversed power leads or during accident conditions.
The purpose of the RCP shaft seal assembly is to:
A. Prevent any RCS liquid from flowing out of containment.
B. Filter the seal return flow before it goes to the VCT.
C. Prevent a pump from starting if another pump in the opposite loop is running.
D. Act as a pressure boundary between RCS and containment.
D. Act as a pressure boundary between RCS and containment.
Leakage past Reactor Coolant Pump Vapor Seal goes to the…
A. CVCS Holdup Tank.
B. Volume Control Tank.
C. Equipment Drain Tank.
D. Reactor Drain Tank.
D. Reactor Drain Tank.
Which of the following is a perforated cylinder designed to provide uniform flow distribution and minimize pressure loss?
A. Core Support Barrel
B. Flow Baffle
C. Upper Guide Structure
D. Core Shroud Assembly
B. Flow Baffle
Place the following components in order of insertion into the core during reassembly:
- Core Shroud Assembly
- Upper Guide Structure
- Lower Support Structure
- Core Support Barrel
A. 3,1,2,4
B. 2,1,4,3
C. 4,3,1,2
D. 3,4,1,2
C. 4,3,1,2
Which of the following components carries the entire weight of the reactor internals?
A. Core Stabilizing Lugs.
B. Core Support Lugs.
C. Core Support Barrel Ledge.
D. Self energizing metal O-rings.
C. Core Support Barrel Ledge.
The RCS Pressurizer is designed to provide enough water volume to prevent uncovery of the Pressurizer heaters during an out surge following a step load decrease of ______ power and a ______ per minute decrease from 100% to 15% power.
A. 10% from 25% to 15%; 5%
B. 10% from 35% to 25%; 5%
C. 20% from 25% to 5%; 10%
D. 10% from 25% to 15%; 10%
A. 10% from 25% to 15%; 5%
