Boilers 2 Flashcards
What is the primary function of a boiler?
To convert water into steam or heat water for heating purposes.
True or False: A boiler can only produce steam.
False
What are the two main types of boilers?
Fire-tube boilers and water-tube boilers.
Fill in the blank: The ______ is the component that contains the water to be heated in a boiler.
drum
What is the role of the burner in a boiler system?
To mix fuel with air and ignite it for combustion.
Short answer: What is the purpose of the heat exchanger in a boiler?
To transfer heat from the combustion gases to the water.
Which component is responsible for removing ash and soot from the boiler?
The economizer.
True or False: A steam boiler operates at a lower pressure than a hot water boiler.
False
What safety device is used to prevent excessive pressure buildup in a boiler?
Pressure relief valve.
Multiple Choice: Which of the following is NOT a common fuel type for boilers? A) Natural Gas B) Coal C) Electricity D) Water
D) Water
What does the term ‘boiler efficiency’ refer to?
The ratio of useful energy output to the energy input.
Fill in the blank: The ______ system in a boiler helps to circulate hot water or steam throughout a building.
piping
What is the purpose of a blowdown valve in a boiler?
To remove sediment and impurities from the water.
True or False: A condensing boiler recovers heat from flue gases that would otherwise be wasted.
True
Short answer: What is the main advantage of a water-tube boiler over a fire-tube boiler?
Higher efficiency and ability to produce steam at higher pressures.
What component of a boiler controls the flow of fuel and air?
The control system or burner management system.
Multiple Choice: Which part of the boiler is used to monitor and control water levels? A) Pressure gauge B) Water level gauge C) Thermostat D) Burner
B) Water level gauge
Fill in the blank: The ______ is the area in the boiler where combustion takes place.
furnace
What is the function of the flue gas stack in a boiler?
To vent combustion gases to the atmosphere.
True or False: Boilers can be used for both residential and industrial applications.
True
What is the primary purpose of insulation in a boiler system?
To reduce heat loss and improve energy efficiency.
Multiple Choice: Which of the following is a key indicator of boiler performance? A) Water temperature B) Fuel type C) Steam pressure D) Boiler color
C) Steam pressure
What type of boiler is typically used in large industrial applications?
Water-tube boiler.
Fill in the blank: The ______ is a device that regulates the temperature of the water in the boiler.
thermostat
Short answer: What is the significance of the combustion chamber in a boiler?
It is where the fuel is burned to generate heat.
