MASTER SET,BOMI ENERGY
MANAGEMENT AND CONTROLS EXAM
WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED
ANSWERS LATEST ALREADY GRADED A+
2025 – 2026
Define Thermal Energy - (ANSWER)Energy associated with the movement of
molecules and measured as heat
Define Electrical Energy - (ANSWER)Energy associated with the flow of negatively
charged electrons through a conductive medium.
Define Mechanical Energy - (ANSWER)The sum of kinetic and potential energy.
Kinetic being the energy of motion, potential being stored energy.
Define BTU - (ANSWER)Quantity of heat possessed by an object is measured in
BTU. It is the amount of heat required to raise temp of one pound of pure water
one degree F at sea level.
What is the fundamental law of heat transfer? - (ANSWER)heat always flows from
an object that is warmer to an object that is cooler.
What are the three factors affecting amount and rate of heat flow through a
building envelope? - (ANSWER)1. Total surface area
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2. Temperature differences
3. Material properties.
What are the four factors uses to evaluate the materials that form a building
enevlope? - (ANSWER)1. Thermal Conductivity
2. Thermal Conductance
3. Thermal Resistance
4. Overall Coefficient of heat transfer
What is thermal conductivity? - (ANSWER)The measurement of a materials ability
to conduct heat.
What is thermal conductance? - (ANSWER)A measure of the rate of heat flow
through a material or air space.
What is thermal resistance? - (ANSWER)A materials ability to retard heat flow.
What is the overall coefficient of heat transfer? - (ANSWER)Resistance value of all
building materials, air spaces, including walls, ceilings and surface air films.
What happens when heat is added to a substance? - (ANSWER)It's molecular
motion increases.
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What is temperature? - (ANSWER)The measurement of the intensity of heat.
What does a BTU measure? - (ANSWER)The quantity of heat.
What is sensible heat? - (ANSWER)heat that when added to or removed from a
substance it changes the temperature of the substance
What is specific heat? - (ANSWER)The ratio of the temperature it takes to raise
the temperature of a substance 1 degree to the amount of heat it takes to raise a
pound of pure water 1 degree.
What is the formula for determining the amount of heat required to change the
temperature of a substance without changing the substances state? -
(ANSWER)Heat required in BTU - weight in LB X specific heat X temp change in
degrees F.
What is latent heat? - (ANSWER)Heat that when added or removed from a
substance changes that substances state, but not its temperature.
What are the standard terms used to describe the change of a substance from
one state to another through the absorption or release of latent heat? -
(ANSWER)solid to liquid: melting
liquid to solid: fusion
liquid to gas: vaporization
gas to liquid: condensation
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What are the three basic processes of heat transfer? - (ANSWER)Conduction,
Convection, Radiation
What is conduction? - (ANSWER)Heat transfer through matter, molecule to
molecule, due to temp difference
What is convection? - (ANSWER)Heat transfer through fluid, typically air or water
What is radiation? - (ANSWER)Heat transfer through electromagnetic waves
What is scale formation? - (ANSWER)mineral deposits on a metal surface that
have precipitated out of a solution
What happens to a boiler with excessive scaling? - (ANSWER)Reduced steam
output, excessive fuel use, increase in stack temp.
What should be done to the feedwater treatment if scale is present? -
(ANSWER)modify schedule and/or add chemicals.
What else can be done to reduce scale? - (ANSWER)Use blowdown controls.