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Questions and Answers
What should the operator do if the water level in the gauge glass of a boiler is found to be below the visible range?
What should the operator do if the water level in the gauge glass of a boiler is found to be below the visible range?
- Continue operating the boiler and monitor the water level closely
- Shut off the fuel and air to the boiler immediately (correct)
- Increase the feedwater flow to the boiler
- Open all superheater drain valves
What is one of the underlying causes of high water level in a boiler?
What is one of the underlying causes of high water level in a boiler?
- Low water cut-off failure (correct)
- Insufficient fuel oil supply
- Excessive air supply
- Broken gauge glass
In the event of a draft fan failure, what must be done immediately to prevent a furnace explosion?
In the event of a draft fan failure, what must be done immediately to prevent a furnace explosion?
- Open the main steam valve at the header
- Increase the feedwater flow to the boiler
- Shut off the fuel supply immediately (correct)
- Manually operate the level control system
What should be done if flame failure occurs during operation of a boiler?
What should be done if flame failure occurs during operation of a boiler?
What are some common reasons for boiler accidents based on the text?
What are some common reasons for boiler accidents based on the text?
What are the general classifications under which boiler explosions may occur?
What are the general classifications under which boiler explosions may occur?
What is the role of the boiler operator in emergency conditions?
What is the role of the boiler operator in emergency conditions?
Which of the following is NOT listed as an adverse condition to be recognized by the operator?
Which of the following is NOT listed as an adverse condition to be recognized by the operator?
What is emphasized as essential for the operator when upset conditions occur?
What is emphasized as essential for the operator when upset conditions occur?
What is the importance of prior knowledge of emergency procedures for the operator?
What is the importance of prior knowledge of emergency procedures for the operator?
What is the suggested level of familiarity with emergency procedures for every operator?
What is the suggested level of familiarity with emergency procedures for every operator?
What is the recommended state for the operator to be in regarding specific procedures in the plant?
What is the recommended state for the operator to be in regarding specific procedures in the plant?
What may cause a pressure explosion in a boiler?
What may cause a pressure explosion in a boiler?
What can lead to the accumulation of an explosive mixture of fuel and air?
What can lead to the accumulation of an explosive mixture of fuel and air?
What is a potential cause of incomplete combustion in a boiler?
What is a potential cause of incomplete combustion in a boiler?
What can result in the accumulation of an explosive mixture after a complete furnace flameout?
What can result in the accumulation of an explosive mixture after a complete furnace flameout?
What should the boiler operator pay regular attention to in order to prevent an explosion?
What should the boiler operator pay regular attention to in order to prevent an explosion?
What may cause a pilot flame that is too small or unstable?
What may cause a pilot flame that is too small or unstable?
What can lead to the admission of fuel to the main burner before the pilot burner is established?
What can lead to the admission of fuel to the main burner before the pilot burner is established?
What should be done in case of a boiler explosion according to legislation?
What should be done in case of a boiler explosion according to legislation?
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