A) A series of backup generators B) A set of fuel rods C) A series of valves D) A network of high-pressure pumps
A) Into the turbine building cooling towers B) Into the primary containment drywell only C) A large pool of liquid water known as the wetwell, torus, or suppression pool D) Directly into the atmosphere outside the plant
A) Into an underground storage cavern B) Directly into the primary containment structure C) Into the secondary cooling water intake D) Out through the plant ventilation stack
A) Depressurizes the reactor vessel B) Increases the reactor vessel temperature C) Shuts down the nuclear chain reaction D) Generates emergency electrical power
A) High-pressure turbine generators B) External diesel generators C) Lower pressure coolant injection systems D) Primary off-site electrical grids
A) They have identical capacities B) They have much smaller capacities C) They have very large capacities D) They have zero coolant capacity
A) Yes, they are exclusively automatic without manual controls B) None of them are automatic or manual C) Some are automatic, while others require manual operator activation D) No, they must all be manually activated by operators
A) Core spray spargers B) Turbine driven auxiliary valves C) Pilot-operated relief valves D) Residual heat removal pumps
A) Containment Spray Valves (CSV) B) Reactor Core Isolation Cooling valves (RCIC) C) Low Pressure Coolant Injection valves (LPCI) D) Pressure Relief Valve (PRV) or Safety Relief Valve (SRV)
A) Only during routine refueling operations B) In case of reactor overpressure or during transition between normal operation and shutdown C) Exclusively during a complete station blackout D) Only when the primary coolant is completely drained
A) To inject emergency coolant into the reactor vessel B) To increase the temperature of the core C) To reduce the pressure in the reactor vessel or in the steam lines D) To generate auxiliary electricity for the plant
A) Into the external environment B) Into the core spray spargers C) Directly into the turbine building D) Into the wetwell where it condensates
A) A containment cooling system that sprays water on the upper containment walls B) An emergency system consisting of a pump that injects coolant into a depressurized reactor vessel C) A high-pressure system that generates steam for turbines D) An auxiliary generator used during station blackouts
A) Before any depressurization occurs B) Once the reactor vessel has been depressurized C) Only after the fuel rods have melted D) While the reactor is at maximum operating pressure
A) The containment spray system B) The Reactor Core Isolation Cooling System (RCIC) C) The Automatic Depressurization System (ADS) D) A residual heat removal system (RHR or RHS)
A) Yes, it is a standalone electrical generator B) Yes, it is a standalone steam turbine C) Yes, it operates completely independently of all other systems D) No, it is generally not a stand-alone valve or system
A) Only in pressurized water reactors (PWRs) B) In both BWRs and PWRs equally C) Only in gas-cooled reactors D) Only in BWRs
A) Steam turbine driven cooling pumps B) Large storage tanks and massive pistons C) Pilot-operated relief valves D) Spargers (pipes fitted with an array of many small spray nozzles)
A) Directly onto the fuel rods B) Into the secondary cooling water circuit C) Into the wetwell suppression pool D) Into the upper portion of the primary containment structure
A) Heating up the primary coolant loop B) Generating additional electrical power C) Suppressing the generation of steam D) Increasing the reactor pressure
A) Primary and secondary cooling modes B) Automatic and manual-only modes C) Electrical and battery-powered modes D) High-pressure and low-pressure modes
A) A series of high-pressure relief valves B) A network of electrical batteries C) A series of pumps and spargers D) A steam turbine and pneumatic controls
A) Into the turbine and control buildings B) Into the wetwell or torus pool C) Into the upper portion of the primary containment structure D) Directly onto the reactor fuel rods
A) Condense steam into liquid within the primary containment structure B) Cool the reactor building when isolated from the control building C) Depressurize the reactor vessel to allow LPCI to function D) Provide auxiliary power during a station blackout
A) Enhanced cooling efficiency of the fuel rods B) Complete electrical grid stabilization C) Immediate reactor shutdown and core freezing D) Leakage, followed by involuntary depressurization
A) A high-capacity battery bank B) Off-site electrical power C) A steam turbine D) An emergency diesel generator
A) To provide enough water to safely cool the reactor if the reactor building is isolated B) To increase pressure in the steam lines during normal operation C) To act as the primary pump for the residual heat removal system D) To spray coolant directly onto the upper containment structure
A) Pneumatic controls B) Computerized robotic controls C) Manual hydraulic levers D) Electrical digital controls
A) Only when connected to full off-site electrical power B) Exclusively using emergency backup battery power C) Only when assisted by an emergency diesel generator D) At mechanically controlled adjustable speeds, without battery power, emergency generator, or off-site electrical power
A) Involuntary containment leakage B) Reactor overpressure during normal startup C) Core spray sparger blockage D) Station blackout
A) No, it is not part of the ECCS B) Yes, it shares all circuits with the ECCS C) Yes, but only in pressurized water reactors D) Yes, it is the primary component of the ECCS
A) No, it does not have a low coolant accident function B) Yes, but only in boiling water reactors C) Yes, alongside its station blackout function D) Yes, that is its primary function during a loss of coolant
A) The core spray injection loop B) The wetwell suppression pool C) The secondary cooling circuit D) The primary cooling circuit
A) Low Pressure Coolant Injection system (LPCI) B) Automatic Depressurization System (ADS) C) Reactor Core Isolation Cooling System (RCIC) D) Turbine driven auxiliary feedwater system
A) The containment spray structure B) The primary cooling circuit, also known as Main Cooling Circuit (MCC) C) The secondary auxiliary cooling circuit only D) The residual heat removal piping network
A) Pilot-operated relief valve system B) Low Pressure Coolant Injection system C) Turbine driven auxiliary feedwater system D) Reactor Core Isolation Cooling System (RCIC)
A) Four B) Five C) Two D) Three
A) U.S. Nuclear Regulatory Commission B) Environmental Protection Agency C) Department of Energy D) International Atomic Energy Agency
A) Actinides B) Plastic polymers C) Boron D) Lanthanides
A) Rubber B) Titanium C) Steel D) Concrete
A) Liquid boron lubricant B) Petroleum-based grease C) High-viscosity synthetic oil D) Self-lubricating metal on metal
A) Boric acid B) Sulfuric acid C) Sodium hydroxide D) Hydrochloric acid
A) No B) Only when backup cooling fails C) Only during refueling D) Yes
A) Moderate concentration B) Zero concentration C) Trace concentration D) High concentration
A) Redundancy B) Advanced digital control software C) Higher electrical voltage capacity D) Manual mechanical override levers
A) Diesel generators B) The main generator C) Motor-generators D) Batteries
A) Magnetic fields B) High voltage C) Mechanical vibration D) Corrosion
A) Neutron flux B) Coolant water C) Fission products D) Control rods
A) Basaltic steel B) Activated charcoal C) Concrete D) Diluted corium
A) The SNR-300 B) The Chernobyl plant C) The AREVA EPR D) The ABWR
A) Water circulating in the floor B) A core catching device C) An active standby gas treatment system D) The concrete foundation
A) A drainage tunnel B) A cooling water reservoir C) A mine D) A secondary containment vault
A) All new Russian-designed reactors B) All BWRs C) All American PWRs D) Only the Chernobyl plant
A) AREVA EPR B) ANSI N18.2 C) IEEE 279 D) Chernobyl
A) The ESBWR B) The SNR-300 C) The ABWR D) The Atmea I
A) Turbine moisture separator B) Metal-diluting filter C) Activated charcoal filter D) Basaltic concrete filter
A) Mist eliminators and roughing filters B) Activated charcoal filters C) Basaltic concrete floors D) Electric heaters
A) August 1979 B) January 1973 C) August 1973 D) December 279 |