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