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