20 Questions
What should the operator do if the water level in the gauge glass of a boiler is found to be below the visible range?
Shut off the fuel and air to the boiler immediately
What is one of the underlying causes of high water level in a boiler?
Low water cut-off failure
In the event of a draft fan failure, what must be done immediately to prevent a furnace explosion?
Shut off the fuel supply immediately
What should be done if flame failure occurs during operation of a boiler?
Stop the fuel flow immediately
What are some common reasons for boiler accidents based on the text?
Lack of training of operating personnel
What are the general classifications under which boiler explosions may occur?
Furnace explosions and pressure explosions
What is the role of the boiler operator in emergency conditions?
To recognize and prevent emergency situations
Which of the following is NOT listed as an adverse condition to be recognized by the operator?
Fan success
What is emphasized as essential for the operator when upset conditions occur?
Calm and efficient action
What is the importance of prior knowledge of emergency procedures for the operator?
To act calmly and efficiently in emergencies
What is the suggested level of familiarity with emergency procedures for every operator?
Complete familiarity
What is the recommended state for the operator to be in regarding specific procedures in the plant?
Comfortable with procedures
What may cause a pressure explosion in a boiler?
Weakening due to excessive steam pressure
What can lead to the accumulation of an explosive mixture of fuel and air?
A brief interruption of the fuel supply
What is a potential cause of incomplete combustion in a boiler?
Scale and sludge buildup
What can result in the accumulation of an explosive mixture after a complete furnace flameout?
Failure of safety shut-off valves
What should the boiler operator pay regular attention to in order to prevent an explosion?
Testing and maintenance of fittings and controls
What may cause a pilot flame that is too small or unstable?
Corrosion
What can lead to the admission of fuel to the main burner before the pilot burner is established?
Repeated unsuccessful attempts to light off without appropriate purging
What should be done in case of a boiler explosion according to legislation?
Notify proper authorities and report all particulars concerning the explosion
Test your knowledge on recognizing and preventing emergency conditions in boiler plants to ensure worker safety and prevent property damage. Topics covered include low water level, high water level, fan failure, and flame failure.
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