Mechanical/Electrical Systems II Exam I
Questions and Answers (Latest update
2025)
What do mechanical and electrical systems make
buildings? (2) - Correct Answer ✅Habitable and
Functional
What are the forms of energy in a building? (4) - Correct
Answer ✅Thermal, electrical, mechanical, and chemical
(in fluids)
What is the difference between energy and power? -
Correct Answer ✅Energy is a quantity while power the
rate energy is used
1 BTU will raise 1 lb of water by how much? - Correct
Answer ✅1 Fahrenheit
What are types of fuels we use in buildings? (6) - Correct
Answer ✅Coal, natural gas, propane, water, solar, wind
What does net heat yield also mean? - Correct Answer
✅Efficiency of a burner
What is the typical efficiency of a boiler? - Correct
Answer ✅60-95%
,Mechanical/Electrical Systems II Exam I
Questions and Answers (Latest update
2025)
What three mediums do mechanical systems use to
transfer energy? - Correct Answer ✅Air, water, and
steam
Airflow is measured in? - Correct Answer ✅(CFM) Cubic
feet per minute
Air pressure is measured in? - Correct Answer ✅Inches
of water column
Water flow is measured in? - Correct Answer ✅(GPM)
Gallons per minute
Steam is measured in? - Correct Answer ✅Pounds
What was an example of an early form of a
mechanical/electrical system? Why? - Correct Answer
✅Windows; for heating, cooling, and for lighting
purposes.
,Mechanical/Electrical Systems II Exam I
Questions and Answers (Latest update
2025)
A sustainable building will benefit what? (5) - Correct
Answer ✅Productivity, health, resources, economics,
and the environment
What are some considerations for sustainable systems?
(4) - Correct Answer ✅Utility, comfort, energy
conservation, and environmental impact
Buildings are responsible for what percent of energy use
in the United States? - Correct Answer ✅30%
Buildings are responsible for what percent of electrical
use in the United States? - Correct Answer ✅60%
List the components to indoor air quality? (4) - Correct
Answer ✅Indoor air quality, connection to the outdoors,
thermal comfort and control, and good lighting
What is SBS? - Correct Answer ✅Sick Building
Syndrome
There is a direct correlation between sick building
syndrome and? - Correct Answer ✅Poor worker
performance
, Mechanical/Electrical Systems II Exam I
Questions and Answers (Latest update
2025)
What are the aspects of comfort according to ASHRAE?
(4) - Correct Answer ✅Temperature, air flow, radition,
and humidity
Define building commissioning. - Correct Answer ✅The
process of proving that systems will operate as intended
and implementing adjustments when necessary to ensure
they are functioning as design specifications say they will
Why is commissioning beneficial? (4) - Correct Answer
✅Better comfort, energy savings, reduction in
maintenance, and provides a means to track performance
What is a quantitative design? - Correct Answer ✅A
design that has a measurable difference like being
cheaper to build
What is a qualitative design? - Correct Answer ✅A
design that has a non-definite difference such as a
projection of an increase in worker productivity
What is a decision matrix good for? - Correct Answer
✅Prioritizing aspects of design and making decisions
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