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

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