Enlisted Surface Warfare Specialist (ESWS) Reactor Practice Test – All Questions

Browse all practice questions for the Enlisted Surface Warfare Specialist (ESWS) Reactor Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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Two SSTGs per Main Machinery Room keep naval power steady and readyHow many Ship Service Turbine Generators (SSTG) are typically located in each Main Machinery Room (MMR)?Understanding who controls water inventory in a naval reactor and why it mattersWho controls water inventory and what is their rate?What happens in a cross-connected steam plant setup in naval reactors?What occurs during a "Cross-connected steam plant" situation?What is the primary purpose of line shaft bearings in marine propulsion?What is the primary purpose of line shaft bearings?What role handles primary water chemistry in a naval reactor and why it mattersWhich role is responsible for primary water chemistry in the reactor?

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What does CSC stand for?
How many blades does a ship's propeller typically have?
What is the primary responsibility of the reactor electrical systems?
What is the primary responsibility of the CMO/SMO?
Who is responsible for directly controlling the shaft rpm?
What is the physical pressure maintained by potable water pumps?
How many shafts are typically found in the reactor systems?
Where are the reboilers typically located?
What does SSAC stand for?
What is a critical function of the CRW/RMO in reactor management?
What part of the A/C plant's process deals with removing heat?
What is the primary purpose of the ship's main jacking gear?
What is the purpose of the reactor department organizational manual?
What is the purpose of the main thrust bearing in a ship?
What term describes the normal electrical power generation method on the vessel?
What does "Locked Shaft" refer to in ship operations?
Which of the following accurately describes the CRW/RMO's role during reactor operations?
What is the primary purpose of the coolant turbine generators?
Which aspect is NOT typically under the purview of the Reactor Laboratory?
How many distilling units are typically located in each Main Machinery Room (MMR)?
What is the responsibility of the Reactor Officer (RO)?
What is the primary responsibility of the Reactor Laboratory (RL)?
What is the main purpose of the emergency diesel generators?
What is a significant advantage of using nuclear power on ships?
What is the primary role of the RDO during port watch?
What is the purpose of the Main Air Ejectors?
What is the purpose of the Reduction Gears?
What is maintained by the Main Air Ejectors in the reactor system?
Which of the following is not a type of air mentioned in the reactor practice test?
What is the main responsibility of the PPWO?
How is feed water typically processed before use?
What is the function of the Astern Throttle valve?
Where are the CACs located in the Reactor Auxiliary Room?
Which of the following is a safety measure when encountering a yellow polly bag?
What does the REA stand for?
What does RAR refer to in reactor terminology?
What is the pressure of low-pressure (LP) air?
What was the first naval nuclear-powered surface ship?
What color is the chill water used in the air conditioning process?
What do the acronyms RO and SRO stand for?
What are the responsibilities of the Reactor Controls Division?
Which of the following best describes the duties of the Reactor Duty Officer?
What is primarily responsible for keeping the galley's food cool?
What is the role of the CMO/SMO?
How many SSACs are located in total across the MMRs and RARs?
What is a crucial aspect of the REA's responsibilities?
What type of distilling plant is utilized onboard the vessel?
Which type of reactor is utilized to pressurize the core water?
What should be done if a yellow polly bag is found on board?
What does the acronym CRA stand for?
What is the pressure of high-pressure (HP) air?
Who are the watch standers that stand watch in the Engine Order Telegraph?
In which plants are shafts 1 and 4 located?
What do the suffixes in RO/SRO indicate about their roles?
Who holds the position of Chief Reactor Watch and Shutdown Reactor Mechanical Operator (CRW/RMO)?
What was the name of the first naval nuclear-powered vessel?
Which of the following is NOT a hotel service provided by the ship?
What impact does a "Split steam plant condition" have on a ship?
In what areas is the REA responsible?
What is the total number of potable water tanks found on the vessel?
What are the Fighting 5 load centers and what mission critical load do they provide?
What does RDO represent in reactor operations?
What does ORSE stand for?
In terms of watchstanding, what does the EOOW primarily oversee?
Why is removing air from the water important in the de-aerating feed tank?
What is the impact of the ship during "Restricted Maneuvering"?
What is the primary function of reboilers on the ship?
Which component is responsible for pumping gas within the A/C plants?
Which rating is typically not associated with Reactor Operator watch standing?
Where is the second SSAC located?
What is the job of the log recorder/ phone talker?
Who is recognized as the father of Nuclear Power?
What is the primary use of Control Air on a ship?
What is the purpose of the ORSE?
How many high-pressure air compressors (HPACs) are found in each MMR?
In what condition does one reactor supply steam to two different plants?
What does the acronym RO stand for in the reactor department?
What does RC stand for in a reactor context?
What is the primary function of the CACs in the reactor plant?
What type of tools utilize Ship Service Air?
Which valve would be used to reverse the ship's motion?
What is the flow rate (in gpm) of the potable water pump?
What is the location of shafts 2 and 3?
Where is the first Ship Service Air Compressor (SSAC) typically located?
What does EOS stand for?
What is the Load Dispatcher responsible for?
What does EOS stand for?
What is one of the main roles of the guarding valve in a reactor system?
Which type of air is used for elevators and auto starting diesel generators?
What does RL stand for?
What is the effect of a "Trailing shaft" condition?
What rate is responsible for being an Emergency Liquid Tank operator?
How many York A/C plants are present on the vessel?
Which of the following statements is true regarding nuclear power?
What action is performed by the main condenser in the steam cycle?
What type and location of heat exchangers are the steam reboilers onboard?
Where does the throttle-man typically stand watch?
What is the capacity of each distilling unit per day?
What is the primary function of the RAR?
What is the purpose of the shaft seal in a ship?
What is the primary function of the main engine on a ship?
What defines a propulsion plant casualty?
What is the role of the Enclosed Operation Station?
PPWO is an acronym for what term?
What is the function of MMR in a ship's reactor?
What purpose does a TLD serve?
Which watch standers are responsible for monitoring operations in Damage Control Central?
What is a primary duty of the MPA?
What was the name of the first nuclear powered aircraft carrier?
What pressure range does the Ship Service Air Compressor (SSAC) supply?
What is the overall control duty of the PPWO associated with?
What is the primary purpose of the potable water risers?
What is the primary function of the propulsion turbines?
What is the primary function of the reboiler heating system?
Who controls the electrical loads and what is their rate?
Where does the EOOW typically stand watch?
What does ABT stand for in relation to reactor operations?
How often does the Operation Reactor Safeguard Exam occur?
What is affected when experiencing a "Trailing Shaft" situation on board?
What is the key difference between feed water and potable water?
What is the main responsibility of the Engineering Officer of the Watch (EOOW)?
What type of communication is primarily handled by the log recorder/ phone talker?
What is the purpose of the reboiler heating drain?
How many potable water pumps are onboard the vessel?
Who is responsible for directly controlling the reactor?
Which watch team is primarily responsible for reactor operations during normal circumstances?
What is the primary source of fuel that powers the reactor?
What is the role of the strut bearing in a ship's propulsion system?
What screws are located behind the rudders?
What is the role of seawater in relation to A/C plants?
What type of reactor is commonly used in this context?
Which watch is responsible for ensuring safe levels of water are maintained?
What does RE refer to in the context of reactor operations?
What does the Reactor Electrical Assistant focus on?
Which rate typically operates the coolant turbine generators?
What function does the NPMTT perform?
Which condition describes when a ship's reactor cannot supply power to its shaft?
What does EOOW stand for?
What does NPMTT stand for?
What is the name of the reactor control room?
What could indicate that a ship is operating under "Split steam plant condition"?
What is one of the key responsibilities of the "M" department?
What does the Ahead throttle valve control?
What is a critical function of the Load Dispatcher during operations?
Which rate typically stands watch as Reactor Operator underway?
What is the primary function of potable water pumps onboard?
What is the main responsibility of the CRA?
How often does the nuclear propulsion system need to be refueled?
What are the primary responsibilities of the Engineering Laboratory Technician (ELT)?
What is the function of chlorinators in the water system?
What is the purpose of the de-aerating feed tank?
What does TLD stand for in the context of radiation measurement?
What is the primary function of the main condenser?
What is the main focus of the EOS in reactor operations?
What does the term RMA refer to in the reactor department?
What role does the Main Propulsion Assistant play in a ship's operations?
What does ELT stand for in the reactor context?
What is the pressure range for high-pressure air compressors (HPACs)?
What is the main responsibility of the CRW/RMO?
What is one of the primary functions of the PPWS?
What is the normal electric plant lineup while steaming?
What are the main duties of the Reactor Mechanical Assistant (RMA)?
The Engineering Laboratory Technician (ELT) contributes to which of the following areas?
What is the function of reactor auxiliaries?
In what system is the high-pressure air primarily used?
What does MPA stand for in the context of propulsion systems?
How many distilling units are present on the ship?
What is the function of the guarding valve in the system?
The propulsion system strut bearing supports which key component?
What are the four stages of the steam cycle?
What does the term "M" in reactor context refer to?
What does PPWS stand for in the context of reactor operations?
What does the ship's control bill provide?
What does it mean when a reactor is described as "critical"?
What is the primary task of the compressor in the A/C systems?
What is the primary purpose of Reactor Controls (RC)?

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