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WorksheetsBoiler Fundamentals #3
Total questions: 15
Worksheet time: 11mins
To make sure that the demand for steam is properly met, the supply of fuel and air to the boiler must be adjusted to reflect changers in the boiler load.
true
false
What is the function of the burners in boilers?
Burners inject a mixture of fuel and air into the combustion area of a boiler.
Burners are needed to change the liquid oil to a mist.
Burners transfer heat through electromagnetic waves
What is the function of the spuds in a typical gas burner?
inject gas into the burner
cause the air entering the burner to swirl, thus mixing thoroughly with the fuel
regulate the amount of air that enters the burner
start the burning process
What is the function of the impeller?
inject gas into the burner
cause the air entering the burner to swirl, thus mixing thoroughly with the fuel
regulate the amount of air that enters the burner
start the burning process
What is the function of dampers in a typical gas burner?
inject gas into the burner
cause the air entering the burner to swirl, thus mixing thoroughly with the fuel
regulate the amount of air that enters the burner
start the burning process
HOW IS HEAT ENERGY TRANSFERRED BY PHYSICAL CONTACT
CONDUCTION
CONVECTION
RADIATION
INDUCTION
What is it called when warm air rises and cool air falls?
convection
radiation
conduction
heat
What device is used to control air flow in vent pipes?
Gate Valve
Damper
Crimpers
Bracket
How is heat energy transferred through the movement of air?
Radiation
Conduction
Convection
Induction
How is heat energy transferred from the sun?
Conduction
Radiation
Convection
Induction
Which of the following is not a type of heat transfer?
conduction
convection
fusion
radiation
How is solid fuel typically supplied to boilers?
spuds
stokers
scale
soot
