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Where on the ship are the two steam generating systems located?
MR no. 1 and MR no. 2
What is the purpose of the main steam stop valve?
Isolate the boiler from the main steam system
Why does the emergency feed and transfer pump have a service air connection?
To permit the pump to be operated with air when steam is not available
The enclosed operating station (EOS) monitor steam temperature, steam pressure, and
Positions of motor operated valves (MOVs)
Prior to maintenance, why are all vent and drain valves opened?
Prevents pressure buildup
Where is operating air pressure from the control pilot applied in the reverse-acting diagram?
Bottom of actuator
What type of valve is used where straight-line flow and minimum restrictions are required?
Gate valve
Which shore steam riser component connects shore steam to the ships 150-pounds per square inch (PSI) steam?
Steam strainer
What equipment uses 150-pounds per square inch (PSI) desuperheated steam assist in purification process?
Lube oil (LO) purifier heater
What is 100-pounds per square (PSI) inch steam is used to service?
Ships laundry
How many 150/100 pounds per square inch (PSI) reducing stations are located in machinery room (MR) 1?
One
What pounds per square inch (PSI) steam is used for ships laundry?
100
Pipe hangers and supports absorb movements on ship, including those imposed by what?
Thermal expansion
Which piping system is painted white?
Steam
The contents of freshwater drain collecting tanks (FWDCT) are discharged overboard by FWDCT pumps or the?
Condensate system
The high-pressure ( HP) steam drain system collects condensate from steam machinery, equipment, and piping that operates above
150
What device indicates the cumulative gallons of waste oil discharge by the oil/water separator (OWS) system?
Flow totalizer
Which of the following are flexible couplings are designed to do?
Transmit power between two components
What is the location of Weather deck drainage piping in larger ships?
In compartments above the waterline
What is used for emptying fuel tanks that have been ballasted with seawater?
Main drainage system
Where does the oil/water separator (OWS) discharged to?
Oily waste holding tank (OWHT)
Oily waste is composed, in large percentage, of what substance?
Water
Which statement best defines superheated steam?
Steam that has been heated above its saturation temperature
Drum-type boilers have one or more water drums and one or more water
Headers
In what equipment does the expansion phase occur?
Main turbines
In what phase of the basic steam cycle does the liquid boil?
Generation
Boiler operating pressure is defined as?
Constant pressure at which the boiler operates
Which chemical treatment does The Navy used to treat boiler water?
Chelant
Through which valve part does pressurized steam enter?
Nozzle
Each boiler is fitted with safety valves to allow steam to escape from boiler when pressure rises above?
Specified limits
Which valve system uses boiler pressure to control disc movement?
Greno industrial-supply safety valve
What boiler component pressure determines the safety valve pressure limits.
Steam drum
What type of steam flow within a turbine is described as moving fluid in rotation around the turbine axis?
Radio flow
What part of a steam turbine controls and contains the system?
Casing
What part of a steam turbine carries and supports the weight of the rotor
Bearing
Which of the following must be done before steam is used to operate the main turbine?
Drain system
What type of steam turbine converts energy from the steam system through a reduction gear, shaft, and propeller to property?
Reaction
When water chemistry test indicates unsatisfactory conditions, what is completed?
surface blowdown
Which system provides a means to remove sludge or total solid concentration?
Bottom blowdown system
Boiler water sample shall be obtained by the watch standard within how many minutes of bringing the boiler on-line?
30
Reducing valve
Jet pump
Butterfly Valve
What is used to locate pipes, fittings ,valves, and other components using standard symbols?
Piping diagrams
Steam is used for propulsion and also to supply power generation turbines, forced draft blowers, and?
Distilling plants
What is the function of the stop-check valve on the branch connection that supplies steam to the desuperheater?
It prevents backflow leakage from the desuperheater into the steam main
Where is the branch line for the desuperheater leakage test sample cooler attached?
Between the outlet of the motor-operated gate valve and the inlet of the manually-operated stop-check valve per square inch (PSI) steam main?
Where does the water when it is discharged from the main feed pumps?
Main feed piping system
Prior to maintenance, why are all vent and drain valves open?
Prevents pressure buildup
What type of valve is used where straight-line flow and minimum restrictions are required?
Gate valve
What component is used to isolate, direct flow, and control steam system within a system?
Valve
Which of the following is defined as system piping with isolation (stop) valves and relieve valves leading to equipment?
branches
What equipment uses 150-pounds per square inch (PSI) desuperheated steam to assist in the purification process?
Lube oil (LO) purifier heater
What pounds per square inch(PSI) steam is used for sterilizer operations in medical?
50 pounds per square inch (psi)
What pounds per square inch (psi) steam is used for ships laundry?
100
What is 100 pounds per square inch (psi) steam is used to service
Ships laundry
Which type of support is generally used in hot-piping systems?
Variatile-spring support
Pipe hangers and supports absorbs movements on the ships, including those imposed by what?
Thermal expansion
Where does steam fully condensed when it directly comes and contact with condensate from the main condensate system?
De ordering feed tank (DFT)
Which equipment include services, such as laundry and space heaters?
Steam equipment
How many senses are installed on the oily waste holding tank (OWHT ) that controls the operation of the oil/water system?
Two
Which of the following are flexible couplings are designed to do?
Transmit power between two components
What is used for emptying fuel tanks that have been ballasted with sea water?
Maintaining system
Which shipboard drainage component takes suction from the drainage main to the discharge piping leading overboard
Eductor
Oily waste is composed, in large percentage, of what substance?
Water
Tanks are equipped with an air escape, a high-level alarm, and a
Sounding tube overflow
What gases heat the water and water tube boiler?
Combustion
Drum-type boilers have one or more water drums and one more water
Headers
What phase of the basic steam cycle preheat water and pump it back to the boiler?
Feed
As the steam leaves, or exhausts, from the low pressure turbine (LPT) it enters the
Condensate phase
What type of boilers are conventional steam boilers?
D-type
Which refractory material is used as the outer layer?
Firebrick
Each boiler is fitted with safety valves to allow steam to escape from the boiler when the pressure rises above?
Specified limits
The receiving pressure is the pressure required for the valve to
Close
Through which valve part does pressurize steam enter?
Nozzle
What boiler component pressure determines the safety valve pressure limit?
Steam drum
Which part of a steam turbine controls and contains the steam?
Casing
What type of steam flow within a turbine is described as flowing in a direction that is almost parallel to the axis of the turbine shaft?
Axial flow
What type of steam flow within a turbine is described as moving fluid in rotation around the turbines axis?
Radial flow
What type of steam turbine converts energy from the steam system through a reduction gear shaft, and propeller to propel the ship?
Reaction
Which of the following must be done before steam is used to operate the main turbine?
Drain system
Surface blowdown shall be performed when results of water chemistry test indicate unsatisfactory, except and what condition?
High steam drum water levels
What minimum steam draw pressure is required to indicate bottom and header blowdown
100 pounds per square inch (psi)
What type of fuel is the stripping and reclamation system used for?
JP5 + Disel Fuel,Marine (DFM)
What is the purpose of the OCM?
To monitor the Effluent water quality
Where is acceptable processed water discharged?
Overboard
Where is the OCM mounted and why?
Downstream of an OWS monitor the effluent water
What is designed to transmit power between two components?
Flexible coupling
What eliminates excessive mechanical stress of the pump shaft and extends life of rotating machinery?
Coupling n shaft alignment
What occurs in the process of alignment?
Align the piece of equipment to the centerline
Who authorizes alignment methods
NAPSEA
(True/False)The fresh water drain system collects condensate and consists of two separate, independent systems
True
How is oily waste created?
Discharge from lube oil, Fuel purifier
What are tanks equipped with?
Air escape, High level alarms
(True/False)Drum type boilers have one or more water drums and two or more water heaters
False
Chemical energy stored in fuel in the fuel is transformed into ___ energy
Thermal
What type of energy turns the shaft and drives the ship?
Mechanical
(True/False)F-type boilers are conventional steam boilers
False
What can cause a discrepancy in the valve opening at its specified limits?
Simmering
Steam turbines convert ____ energy into ____ energy
Thermal & mechanical
Note 
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