84 Questions
EASY What type of engines may power standby feedwater pumps?
Internal combustion engines, electric motors, or steam turbines
Why are standby feedwater pumps critical to power plant operation?
They must be operated regularly, regardless of the type of prime mover
How often should standby feedwater pumps be run?
Weekly
What should be inspected during a test run of a standby feedwater pump with an internal combustion engine?
Battery voltage, fuel supply, crankcase oil level, and drive clutch
Why are duty swaps performed?
To distribute wear on equipment and demonstrate equipment reliability
What is a key step in performing a duty swap?
Start the incoming piece of equipment while the in-service piece is still running
What type of equipment commonly undergoes duty swaps?
Boilers, boiler feed pumps, fuel oil pumps, condensate transfer pumps, air compressors, and refrigeration compressors
Why are safety valves critical?
They are critical safety items
What is the purpose of keeping maintenance records?
To analyze current and historical equipment performance
What is commonly used to keep maintenance records?
A combination of paper and electronic record keeping
What is the purpose of checking oil levels as part of operator rounds?
To ensure the oil level is correct for the specific machine
What is the consequence of water entrained in compressed air?
Damage to pneumatic instruments and control valves
What is the purpose of briefly opening and reclosing the low point drain valves?
To remove condensed water from the instrument air piping
What is the frequency of operation and inspection for standby equipment?
Determined by the level of reliability required
What is the purpose of recording the date and time of operation for standby equipment?
To ensure the equipment is reliable and ready
What is the purpose of testing emergency generators?
To ensure the generator can power certain equipment
What is the requirement for diesel driven generators according to NFPA 110?
The monthly test must last at least 30 minutes
How often should fire pumps be test run?
Weekly
What is included in the inspection and test run of a fire pump?
Verifying oil levels and pumping capacity
How often are fire pumps required to be flow tested according to NFPA 25?
Yearly
Why is preventative maintenance necessary for continued plant production?
To ensure equipment longevity and protect against unplanned shutdowns
What is the primary goal of a Preventative Maintenance system?
To provide early detection of equipment problems
What happens if a deficiency is found during a preventative maintenance check?
The operator creates a work order so repairs can take place
What is used as PM system data?
Many equipment readings
What is NOT a typical activity performed as part of a PM system?
Equipment replacement
What is the role of the work-planning department in the PM system?
To assess each deficiency and plan the required maintenance according to plant priorities
What is a benefit of a well-planned PM system?
Protection against unplanned shutdowns
Why is it simpler to maintain a plant that can more easily tolerate service interruptions?
Because it has fewer components to manage
MEDIUM What is the primary reason for using a Preventative Maintenance (PM) system in a large plant?
To ensure equipment longevity and protect against unplanned shutdowns
What is the purpose of performing regular inspections as part of a Preventative Maintenance system?
To determine the health of the equipment
What happens when a deficiency is found during a preventative maintenance check?
The operator creates a work order so repairs can take place
What is the role of the work-planning department in the Preventative Maintenance system?
To assess deficiencies and plan required maintenance according to plant priorities
What type of data is used in a Preventative Maintenance system?
Recorded operating parameters
What is the benefit of distributing preventative maintenance tasks among several work groups?
To ensure that all equipment is properly maintained
What is the purpose of vibration monitoring in a Preventative Maintenance system?
To detect equipment problems before they cause equipment outage
What is a characteristic of a plant that is simpler to maintain?
It can more easily tolerate service interruptions
What is the primary purpose of checking oil levels in equipment?
To ensure the correct type of oil is used
What is the consequence of not removing condensed water from instrument air piping?
Damage to pneumatic instruments and control valves
What is the purpose of periodic operational tests of standby equipment?
To ensure the equipment is in good working condition
What is the requirement for diesel driven generators according to NFPA 110?
The monthly test must last at least 30 minutes
What is the frequency of inspection and test runs for fire pumps according to NFPA 25?
Weekly 'no-flow' tests and annual flow tests
What is the purpose of recording operational data during standby equipment tests?
To track equipment performance over time
What is the primary purpose of a lubricant index?
To select the correct type of lubricant for a specific piece of equipment
What is the purpose of air station blowdown?
To remove condensed water from instrument air piping
What is the requirement for emergency standby power systems and related components according to NFPA 110?
Weekly inspection and exercise under load at least monthly
What is the purpose of standby equipment operation as part of a preventative maintenance program?
To ensure the equipment is in good working condition
What is the primary purpose of conducting a duty swap?
To distribute wear and demonstrate equipment reliability
Why are safety valves critical in power plant operation?
They are critical safety items
What is typically done with the paper copy of a log sheet or checklist after it is submitted for review?
It is entered into an electronic data recording system
What is the benefit of performing a duty swap on standby equipment?
It allows for data collection and prediction of equipment reliability
What is commonly tested during the annual flow test of a standby feedwater pump?
All of the above
Why is it necessary to run standby feedwater pumps on a weekly basis?
To operate them regularly, regardless of the type of prime mover
What is the role of the electronic data recording system in maintenance records?
It analyzes current and historical equipment performance
What is typically done before shutting down the in-service pump during a duty swap?
All of the above
What is the purpose of safety and safety relief valve testing?
To ensure the safe operation of power plant equipment
What is the benefit of keeping maintenance records?
It allows for the analysis of current and historical equipment performance
HARD What is the primary purpose of testing standby feedwater pumps?
To ensure reliable operation during emergencies
What is a key aspect of performing a duty swap on standby equipment?
Starting the incoming equipment while the in-service equipment is still running
What is the primary purpose of safety valve testing?
To ensure the valves can relieve excess pressure
What is a benefit of recording operational data during standby equipment tests?
To analyze current and historical equipment performance
What is the primary purpose of performing regular inspections as part of a preventative maintenance system?
To identify potential equipment failures
What is the role of the work-planning department in the preventative maintenance system?
To schedule maintenance tasks
What is a characteristic of a plant that is simpler to maintain?
Service interruptions can be tolerated
What is the primary purpose of checking oil levels in equipment?
To ensure equipment reliability
What is the primary benefit of performing a duty swap on standby equipment?
Distributed wear and demonstration of equipment reliability
What is the primary role of maintenance records?
To track equipment history
What is the primary reason for distributing preventative maintenance tasks among several work groups?
To utilize the expertise of specialized teams
What is the primary benefit of predictive maintenance in a large plant?
Providing early detection of equipment problems
What is the primary purpose of recording equipment readings in a PM system?
To track equipment performance over time
What is the primary role of the work-planning department in the PM system?
To assess and plan required maintenance according to plant priorities
What is the primary purpose of vibration monitoring in a PM system?
To predict equipment problems before they occur
What is the primary characteristic of a plant that is simpler to maintain?
It can more easily tolerate service interruptions
What is the primary purpose of equipment inspection in a PM system?
To determine equipment health
What is the primary benefit of a well-planned PM system?
Ensuring equipment longevity and protecting against unplanned shutdowns
What is the primary purpose of checking the viscosity and viscosity index of oil in equipment?
To ensure the correct lubricant type is selected
Why is it necessary to reference the lubricant index before adding oil to a machine?
To ensure the correct type of oil is used
What is the consequence of not removing condensed water from instrument air piping?
Damage to pneumatic instruments and control valves
What is the primary purpose of standby equipment operation as part of a preventative maintenance program?
To ensure the equipment is in a reliable, ready state
What is the requirement for emergency standby power systems and related components according to NFPA 110?
Weekly inspection and monthly exercise under load
What is the purpose of recording operational data during standby equipment tests?
To track the equipment's performance and identify potential issues
What is the primary purpose of a lubricant index?
To select the correct lubricant type for specific equipment
What is the frequency of inspection and test runs for fire pumps according to NFPA 25?
Weekly inspection and monthly test run
What is the purpose of air station blowdown?
To remove condensed water from instrument air piping
What is the primary purpose of conducting periodic operational tests of standby equipment?
To ensure the equipment is in a reliable, ready state
Study Notes
Plant Maintenance Management
- Managing maintenance in a plant can be complex, especially in larger plants with many components.
- Preventative Maintenance (PM) systems schedule regular maintenance to predict equipment problems before they cause outages.
Preventative Maintenance (PM) Systems
- PM systems cover all plant equipment, with each item having specific required checks.
- Regular inspections determine equipment health.
- Typical PM activities include:
- Review of recorded operating parameters
- Vibration monitoring
- Equipment inspection
- Lubricating oil sampling and testing
- Equipment adjustment
- Bump tests
- Shaft rotation
- Instrument calibration
- Parts replacement
- Equipment duty swap
- Safety valve testing and calibration
- Operation of standby equipment (such as generators and fire pumps)
Preventative Maintenance Tasks
- Oil Level Checks:
- Checking oil level is a regular activity. +Understanding how to ensure correct oil levels is important.
- Characteristics to consider include viscosity, viscosity index, flash point, pour point, and floc point.
- Air Station Blowdown:
- Removing condensed water from instrument air piping to prevent damage to pneumatic instruments and control valves.
Standby Equipment Operation
- Standby equipment must be maintained in a reliable, ready state.
- Periodic operational tests are required to ensure standby equipment will work correctly when needed.
- Examples of standby equipment include:
- Emergency Generators
- Fire Pumps
- Standby Feedwater Pumps
Emergency Generators
- Periodic inspection and operation is required.
- Inspection includes oil levels, fuel supplies, and governing controls.
- Test runs must include an assessment of the generator's loading capability.
Fire Pumps
- Critical for plant safety, test run on a weekly basis.
- Inspection and test run include verifying oil levels and pumping capacity.
Standby Feedwater Pumps
- May be powered by electric motors, internal combustion engines, or steam turbines.
- Must be operated regularly to ensure reliability.
Duty Swap
- Distributes wear and demonstrates equipment reliability.
- Procedure involves:
- Starting the incoming piece of equipment while the in-service piece is still running.
- Checking operating parameters to ensure they match the in-service equipment.
- Shutting down the in-service piece of equipment when all parameters match.
Safety and Safety Relief Valve Testing
- Testing intervals are governed by preventative maintenance schedules.
- Safety valves require particular attention as they are critical safety items.
Maintenance Records
- Keeping maintenance records is essential.
- Methods include paper and electronic filing systems.
- Records are used to analyze current and historical equipment performance and make predictions on reliability.
Plant Maintenance Management
- Managing maintenance in a plant can be complex, especially in larger plants with many components.
- Preventative Maintenance (PM) systems schedule regular maintenance to predict equipment problems before they cause outages.
Preventative Maintenance (PM) Systems
- PM systems cover all plant equipment, with each item having specific required checks.
- Regular inspections determine equipment health.
- Typical PM activities include:
- Review of recorded operating parameters
- Vibration monitoring
- Equipment inspection
- Lubricating oil sampling and testing
- Equipment adjustment
- Bump tests
- Shaft rotation
- Instrument calibration
- Parts replacement
- Equipment duty swap
- Safety valve testing and calibration
- Operation of standby equipment (such as generators and fire pumps)
Preventative Maintenance Tasks
- Oil Level Checks:
- Checking oil level is a regular activity. +Understanding how to ensure correct oil levels is important.
- Characteristics to consider include viscosity, viscosity index, flash point, pour point, and floc point.
- Air Station Blowdown:
- Removing condensed water from instrument air piping to prevent damage to pneumatic instruments and control valves.
Standby Equipment Operation
- Standby equipment must be maintained in a reliable, ready state.
- Periodic operational tests are required to ensure standby equipment will work correctly when needed.
- Examples of standby equipment include:
- Emergency Generators
- Fire Pumps
- Standby Feedwater Pumps
Emergency Generators
- Periodic inspection and operation is required.
- Inspection includes oil levels, fuel supplies, and governing controls.
- Test runs must include an assessment of the generator's loading capability.
Fire Pumps
- Critical for plant safety, test run on a weekly basis.
- Inspection and test run include verifying oil levels and pumping capacity.
Standby Feedwater Pumps
- May be powered by electric motors, internal combustion engines, or steam turbines.
- Must be operated regularly to ensure reliability.
Duty Swap
- Distributes wear and demonstrates equipment reliability.
- Procedure involves:
- Starting the incoming piece of equipment while the in-service piece is still running.
- Checking operating parameters to ensure they match the in-service equipment.
- Shutting down the in-service piece of equipment when all parameters match.
Safety and Safety Relief Valve Testing
- Testing intervals are governed by preventative maintenance schedules.
- Safety valves require particular attention as they are critical safety items.
Maintenance Records
- Keeping maintenance records is essential.
- Methods include paper and electronic filing systems.
- Records are used to analyze current and historical equipment performance and make predictions on reliability.
Plant Maintenance Management
- Managing maintenance in a plant can be complex, especially in larger plants with many components.
- Preventative Maintenance (PM) systems schedule regular maintenance to predict equipment problems before they cause outages.
Preventative Maintenance (PM) Systems
- PM systems cover all plant equipment, with each item having specific required checks.
- Regular inspections determine equipment health.
- Typical PM activities include:
- Review of recorded operating parameters
- Vibration monitoring
- Equipment inspection
- Lubricating oil sampling and testing
- Equipment adjustment
- Bump tests
- Shaft rotation
- Instrument calibration
- Parts replacement
- Equipment duty swap
- Safety valve testing and calibration
- Operation of standby equipment (such as generators and fire pumps)
Preventative Maintenance Tasks
- Oil Level Checks:
- Checking oil level is a regular activity. +Understanding how to ensure correct oil levels is important.
- Characteristics to consider include viscosity, viscosity index, flash point, pour point, and floc point.
- Air Station Blowdown:
- Removing condensed water from instrument air piping to prevent damage to pneumatic instruments and control valves.
Standby Equipment Operation
- Standby equipment must be maintained in a reliable, ready state.
- Periodic operational tests are required to ensure standby equipment will work correctly when needed.
- Examples of standby equipment include:
- Emergency Generators
- Fire Pumps
- Standby Feedwater Pumps
Emergency Generators
- Periodic inspection and operation is required.
- Inspection includes oil levels, fuel supplies, and governing controls.
- Test runs must include an assessment of the generator's loading capability.
Fire Pumps
- Critical for plant safety, test run on a weekly basis.
- Inspection and test run include verifying oil levels and pumping capacity.
Standby Feedwater Pumps
- May be powered by electric motors, internal combustion engines, or steam turbines.
- Must be operated regularly to ensure reliability.
Duty Swap
- Distributes wear and demonstrates equipment reliability.
- Procedure involves:
- Starting the incoming piece of equipment while the in-service piece is still running.
- Checking operating parameters to ensure they match the in-service equipment.
- Shutting down the in-service piece of equipment when all parameters match.
Safety and Safety Relief Valve Testing
- Testing intervals are governed by preventative maintenance schedules.
- Safety valves require particular attention as they are critical safety items.
Maintenance Records
- Keeping maintenance records is essential.
- Methods include paper and electronic filing systems.
- Records are used to analyze current and historical equipment performance and make predictions on reliability.
Test your knowledge of managing maintenance in a plant, including preventative maintenance systems and equipment health inspections.
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