20 Questions
What is the objective of having procedures for responding to adverse conditions in a plant?
To provide guidelines for dealing with common equipment failures
Why must plant operators be well versed in plant blackout procedures?
To understand how power failures affect plant equipment
What is an important consideration for operators during an electrical power failure?
Knowing how to restart equipment after power is restored
Why is it important for operators to know how to manually start a standby generator?
To have a backup plan if the generator fails to start automatically
What is the purpose of the DC seal oil pump mentioned in the text?
To keep hydrogen coolant inside large alternators
What could be a cause of loss of water level in the boiler?
Failure of the boiler feedwater pump
What should be done if a condensate transfer pump fails, resulting in low deaerator level?
Start the standby boiler feedwater pump
What action should be taken if a leak is suspected in the boiler?
Close the pilot and main test firing valves
What should be done if the boiler water level is below the lowest visible part of the gauge glass?
Shut the boiler down, let it cool slowly, and do not add water to restore the water level
What should be done if there is an inadequate pilot flame during the ignition period?
Contact a certified burner technician or Class A gas fitter to adjust the pilot to manufacturer specifications
What causes an unstable main flame in a boiler?
Excessive fuel pressure, inadequate fuel pressure, or excessive combustion air
What should be done if there is a flame failure during boiler operation?
Shut the pilot and main test firing valves and investigate the cause of failure
What happens to valves when a power failure occurs in a power plant?
They go to a fail-safe position, some failing open and others failing shut
What should the operator do immediately on power failure if the fire in the boiler is not out?
Ensure that the main and pilot test firing valves are closed
What does an Emergency Power Supply System (EPSS) in a power plant provide?
Long-term power to essential loads with automatic transfer switches
What is the purpose of a Uninterruptible Power Supply (UPS) in a power plant?
Maintains power to critical equipment at all times through a system of batteries and automatic transfer switches
What should be done if the fuel oil pressure remains inadequate after changing the fuel oil strainer?
Switch to the standby fuel oil pump
What can cause poor quality flames in air or steam-atomized burners?
Inadequate atomizing medium pressure
What should be done if the combustion air proving switch fails to shut down the burner when the forced draft fan fails?
Immediately shut the main and pilot test firing valves
What may be the problem if all normal operating parameters are met but the boiler fails to light off or has repeated flame failures?
Defective programmed combustion control or flame amplifier
Test your knowledge about the operation of DC seal oil pumps and their role in preventing hydrogen coolant leaks and explosion hazards during power failures.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
