Chapter 1 Introduction to Mechanical and Electrical Systems, Sustainable Design, and
Evaluating Options
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Check factors which contribute to indoor environmental quality. Select all that apply. 1) _______
A) Healthful indoor air quality.
B) Thermal comfort and individual control.
C) Temperatures between 75° and 80°F.
D) Good lighting.
E) Connection with the outdoors.
F) Air filters with MERV ratings between 4 and 8.
2) One kWh of electric energy generated by coal will produce how many pounds of CO2? 2) _______
A) 2.4 B) 24 C) 0.24 D) 0.024
3) Electric generated by burning gas will produce approximately how much less CO2 than electric
generated by coal?
3) _______
A) 20% less B) 30% less C) 40% less D) 10% less
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
4) Insert the ASHRAE Standard numbers with their topics.
A. Energy is covered in Std. ________.
B. Ventilation is covered in Std. ________.
C. Thermal comfort is covered in Std. ________.
4)
_____________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
5) Which of the following statements is true about increasing building ventilation from moderate
(e.g., 25 CFM/occupant) to high (e.g., 50 CFM/occupant)? Select all that apply.
5) _______
A) The net loss in energy outweighs the net gains from occupant health.
B) Increasing ventilation will increase the initial cost of HVAC systems.
C) Increasing ventilation will produce a healthier environment.
D) Increasing ventilation will increase energy consumption.
6) What do floor registers and operable windows have in common? Select all that apply. 6) _______
A) They are both archaic and outmoded.
B) Both save energy.
C) They both give occupants control of their environment.
7) Studies claim that 5°F of individual temperature control can increase work performance by what
percentage range?
7) _______
A) 10-15% B) 1-2% C) 3-7% D) 8-10%
8) Which of the following statements are true about direct and indirect lighting? Select all that
apply.
8) _______
A) Indirect lighting produces less glare but more shadows than direct lighting.
B) Indirect lighting can use equal or less power to produce higher quality light.
C) Indirect lighting uses less energy than direct to produce equal illumination.
D) Most people would prefer to work under direct lighting.
9) Check which of the following are appropriate steps toward the end of the commissioning pr ocess?
Select all
that
apply.
9) __
__
__
_
A) Assist in hiring owner’s maintenance staff.
B) Document that these procedures have been performed along with their outcome.
C) Formulate a guarantee that controls operate properly.
D) Follow up during the first year of operation to check seasonal performance and address
any owner concerns.
E) Verify that operating manuals are turned over to the owner.
10) Which of the following statements is true about commissioning? Select all that apply. 10)
______
A) Systems such as security and alarm require light commissioning because they can be
adjusted after occupancy when operating parameters are known.
B) If ongoing maintenance is outsourced, there is no need for the owner to receive training or
operating and maintenance documentation.
C) Commissioning is essential to test only normal operations.
D) A shortened commissioning process might be quite satisfactory for a small commercial
building with simple heating and cooling equipment.
11) Which of the following statements is true about economic analysis? Select all that apply. 11)
______
A) Life cycle cost analysis is standardized in LEED to cover 20 years of cash flow.
B) The discount rate represents the reduction in contract cost offered by the low bidder.
C) An owner who uses a low discount rate will be more likely to invest in energy saving
technology.
D) Higher investment could produce superior results with a longer payback period.
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
12) Rank the following in terms of their magnitude of energy consumption for a typical
office building in the Midwest USA. Use 1 for highest, 2 for second highest, etc.
Lighting ________.
HVAC ________.
Hot water ________.
Appliances ________.
12)
_____________
TRUE/FALSE. Write ‘T’ if the statement is true and ‘F’ if the statement is false.
13) Good indoor environmental quality results in real economic benefit from productivity. These
benefits should be included in life-cycle cost analysis.
13)
______
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
14) Generally, a Midwest USA office building will experience annual energy bills (gas + electric) in
what range?
14)
______
A)
$5.50 – $10.00 per ft2. B)
$1.50 – $2.50 per ft2. C)
$3.50 – $5.00 per ft2.
15) The employee cost (salaries and fringes) for an office building is most likely to be how much
higher than the energy cost for utilities?
15)
______
A) Twenty times as high. B) Two thousand times as high.
C) Two hundred times as high. D) Twice as high.
