DC Seal Oil Pump and Power Failure

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What should operators be well versed in to respond correctly to adverse conditions?

Plant watering procedures

Plant blackout procedures (correct)

Plant pruning procedures

Plant fertilization procedures

What is one of the considerations for dealing with electrical power failures?

The size of the control room desk

The number of office chairs in the control room

The positions in which various control valves fail (open, shut, or last position) (correct)

The color of the control room walls

What should operators know about equipment fed by standby power?

What equipment is fed by solar power, and what is not

What equipment is fed by hydroelectric power, and what is not

What equipment is fed by standby power, and what is not (correct)

What equipment is fed by wind power, and what is not

In the event of a standby generator failing to start automatically, what should operators know how to do?

Manually start a standby generator Signup and view all the answers

What should operators be knowledgeable about to restart equipment after power is restored?

The sequence for starting equipment after power is restored Signup and view all the answers

What should plant operators be able to do if an automatic transfer switch fails to operate automatically?

Manually operate an automatic transfer switch Signup and view all the answers

What is the primary purpose of an Emergency Power Supply System (EPSS) in a power plant?

To start automatically and supply power to critical equipment during a power failure Signup and view all the answers

What is the function of an Uninterruptible Power Supply (UPS) in a power plant?

To maintain power to critical equipment at all times through a system of batteries Signup and view all the answers

What happens to valves when there is a loss of power in a power plant?

They fail shut or closed, blocking flow Signup and view all the answers

What is the appropriate action for an operator when a power failure occurs in a plant with no backup power?

Monitor the boiler as it cools down and perform tasks to put the plant in a safe state Signup and view all the answers

What is one of the challenges of firing solid fuel during a power failure?

The fuel in the furnace can continue to burn and lower the boiler water level Signup and view all the answers

What is the purpose of banking the fire in a boiler during a power failure?

To prevent unattended light-off when power is restored Signup and view all the answers

What should be done if the fuel oil pressure remains low after changing the fuel oil strainer?

Switch to the standby fuel oil pump and check the fuel supply pressure Signup and view all the answers

What is a common cause of poor quality flames in air or steam-atomized burners?

Inadequate atomizing medium pressure Signup and view all the answers

What can cause the flame safeguard control to trip the burner off?

Failure of flame detection and flame safeguard controls Signup and view all the answers

What should be done if an FD fan fails, and the combustion air proving switch does not shut down the burner?

Immediately shut the main and pilot test firing valves Signup and view all the answers

What should be done after repairs are complete for an FD fan failure?

Thoroughly purge the furnace prior to beginning a normal restart Signup and view all the answers

What is recommended to sweep carbon monoxide and unburned fuel from the furnace after shutting down an FD fan?

Allow air to enter the furnace through the fan damper when the furnace is cooler Signup and view all the answers

What should be done when the boiler water level is below the lowest visible part of the gauge glass?

Shut the boiler down and let it cool slowly Signup and view all the answers

What can cause excessive fuel pressure in a boiler?

Inadequate fuel pressure regulator Signup and view all the answers

What may result from an inadequate pilot flame during the ignition period?

Main flame instability Signup and view all the answers

What should be done if the boiler water level is above the highest visible part of the gauge glass?

Lower the boiler water level using blowoff valves Signup and view all the answers

What should be done if a flame failure occurs in a boiler?

Shut the test firing valves and isolate the boiler Signup and view all the answers

What should be done when the boiler water level is outside of the visible portion of the gauge glass?

Blow down the gauge glass to reveal the water level Signup and view all the answers

What is the purpose of the DC seal oil pump mentioned in the text?

To start on a power failure and run until the hydrogen can be vented Signup and view all the answers

What could be a cause of a loss of water level in the boiler?

Overheating due to excessive waterside scale accumulation Signup and view all the answers

What action should be taken if the feedwater control valve is suspected to be closed?

Remove the feedwater control valve from service and repair promptly Signup and view all the answers

What could be the consequence of a condensate transfer pump failing?

Boiler feedwater pump damage and low boiler water level Signup and view all the answers

How can a quick scan of blowdown and blowoff lines reveal problems with the boiler?

By checking the temperature with a handheld infrared thermometer Signup and view all the answers

What is the recommended action if a leak is suspected in the boiler?

Shut down the boilers until the cause of the low deaerator level is determined and corrected Signup and view all the answers