Residential and Light Commercial Buildings, 4th
Edition John Siegenthaler
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
1. Hydronic heating systems use water (or water-based solutions) to move thermal energy from where it is produced to
where it is needed.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 1
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:22 AM
DATE MODIFIED: 7/25/2022 5:24 AM
2. Ideally, the water in a hydronic heating system remains in the system year after year.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 1
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:24 AM
DATE MODIFIED: 7/25/2022 5:25 AM
3. Providing comfort is the primary objective of any heating system designer or installer.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 3
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:25 AM
DATE MODIFIED: 7/25/2022 5:25 AM
4. Properly designed hydronic systems control both the air temperature and surface temperatures of rooms to maintain
optimal system water level.
a. True
b. False
ANSWER: False
POINTS: 1
REFERENCES: 3
QUESTION TYPE: True / False
HAS VARIABLES: False
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
DATE CREATED: 7/25/2022 5:25 AM
DATE MODIFIED: 7/25/2022 5:26 AM
5. Maintaining comfort is simply a matter of supplying heat to the body.
a. True
b. False
ANSWER: False
POINTS: 1
REFERENCES: 3
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:26 AM
DATE MODIFIED: 7/25/2022 5:27 AM
6. A properly designed and installed hydronic system can operate with virtually no detectable sound levels in the occupied
areas of a home.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 6
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:27 AM
DATE MODIFIED: 7/25/2022 5:27 AM
7. All heating systems consist of devices that convert one form of energy into another.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 8
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:28 AM
DATE MODIFIED: 7/25/2022 5:28 AM
8. Thermal radiation is probably the most understood mode of heat transfer.
a. True
b. False
ANSWER: False
POINTS: 1
REFERENCES: 11
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:28 AM
DATE MODIFIED: 7/25/2022 5:29 AM
9. The simplest hydronic system can be described as a loop or piping circuit.
a. True
b. False
ANSWER: True
POINTS: 1
REFERENCES: 13
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:29 AM
DATE MODIFIED: 7/25/2022 5:29 AM
10. In single-loop systems, the flow-check valve allows hot water in the boiler to slowly circulate through the distribution
system when the circulator is off.
a. True
b. False
ANSWER: False
POINTS: 1
REFERENCES: 16
QUESTION TYPE: True / False
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:29 AM
DATE MODIFIED: 7/25/2022 5:30 AM
11. Water has many characteristics that make it ideal for a hydronic system. It is readily available, nontoxic,
nonflammable, and has one of the highest ____ storage abilities of any material known to man.
a. liquid
b. Vapor
c. molecular
d. heat
ANSWER: d
POINTS: 1
REFERENCES: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:31 AM
DATE MODIFIED: 7/25/2022 5:32 AM
12. Early hydronic systems did not have circulators. Instead, they relied on the ____ of hot water to move water between
the boiler and the heat emitters.
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
a. molecular attraction
b. thermonics
c. buoyancy
d. hydraulics
ANSWER: c
POINTS: 1
REFERENCES: 2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:32 AM
DATE MODIFIED: 7/25/2022 5:33 AM
13. Buildings with hydronic heating systems have shown ____ heating energy use compared to equivalent structures with
forced-air heating systems.
a. lower
b. higher
c. equal
d. unquantifiable
ANSWER: a
POINTS: 1
REFERENCES: 4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:33 AM
DATE MODIFIED: 7/25/2022 5:34 AM
14. A given volume of water can absorb over ____ times more heat as the same volume of air for the same temperature
change.
a. 30
b. 300
c. 340
d. 3400
ANSWER: d
POINTS: 1
REFERENCES: 6
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:34 AM
DATE MODIFIED: 7/25/2022 5:35 AM
15. Heat is our perception of atomic vibrations within a material. Our means of expressing the intensity of these vibrations
is called ____.
a. harmonics
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
b. temperature
c. cellular reaction
d. tuning
ANSWER: b
POINTS: 1
REFERENCES: 8
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:35 AM
DATE MODIFIED: 7/25/2022 5:35 AM
16. Heat emitters that use fans or blowers to force air through a heat exchanger are usually called fan coils or air ____.
a. baffles
b. tunnels
c. handlers
d. blowers
ANSWER: c
POINTS: 1
REFERENCES: 11
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:36 AM
DATE MODIFIED: 7/25/2022 5:36 AM
17. All hydronic heating systems will inherently attempt to find a point of ____ and remain in operation at that point.
a. thermal equilibrium
b. even hydraulic flow
c. thermal comfort
d. customer comfort
ANSWER: a
POINTS: 1
REFERENCES: 13
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:36 AM
DATE MODIFIED: 7/25/2022 5:37 AM
18. In an ideal application, the rate of heat production by the heat source would ____ the rate of heat by the heat emitters.
a. never match
b. exceed
c. remain lower than
d. exactly match
ANSWER: d
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
POINTS: 1
REFERENCES: 14
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:37 AM
DATE MODIFIED: 7/25/2022 5:38 AM
19. In single-loop systems, the ____ prevents hot water in the boiler from slowly circulating through the distribution
system when the circulator is off.
a. diaphragm
b. flow-check valve
c. power switch
d. up-flow valve
ANSWER: b
POINTS: 1
REFERENCES: 16
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:38 AM
DATE MODIFIED: 7/25/2022 5:39 AM
20. An air separator is designed to separate air from water and eject it from the system. The process is ____ the water is
heated.
a. more difficult if
b. enhanced as
c. not affected if
d. unnecessary if
ANSWER: b
POINTS: 1
REFERENCES: 17
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:40 AM
DATE MODIFIED: 7/25/2022 5:40 AM
21. The emergence of electrically powered____ made it possible to move water at higher flow rates through much
elaborate piping systems.
a. separators
b. motors
c. strainers
d. circulators
ANSWER: d
POINTS: 1
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,Name: Class: Date:
Chapter 01: Fundamental Concepts
REFERENCES: 2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:40 AM
DATE MODIFIED: 7/25/2022 5:41 AM
22. Modern controls can maintain room air temperature +/- ___ °F of the desired setpoint temperature.
a. 1
b. 2
c. 5
d. 7
ANSWER: a
POINTS: 1
REFERENCES: 3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:42 AM
DATE MODIFIED: 7/25/2022 5:42 AM
23. Hydronic systems that transfer the majority of their heat by thermal radiation reduce air temperature____ and thus
reduce heat loss through ceilings.
a. normalizing
b. vaporization
c. stratification
d. drops
ANSWER: c
POINTS: 1
REFERENCES: 4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:43 AM
DATE MODIFIED: 7/25/2022 5:44 AM
24. Heat always moves from an area of____ temperature to an area of____ temperature.
a. lower, higher
b. higher, lower
c. dry-bulb, wet-bulb
d. cold, heat
ANSWER: b
POINTS: 1
REFERENCES: 9
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
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, Name: Class: Date:
Chapter 01: Fundamental Concepts
DATE CREATED: 7/25/2022 5:44 AM
DATE MODIFIED: 7/25/2022 5:45 AM
25. When fluid motion is caused by either a circulator, blower, or fan, the resulting heat transfer is more specifically
called______.
a. forced convection
b. power convection
c. solid convection
d. super convection
ANSWER: a
POINTS: 1
REFERENCES: 10
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:45 AM
DATE MODIFIED: 7/25/2022 5:46 AM
26. The main difference between thermal radiation and visible light is the___ of the radiation.
a. prism
b. spectrum
c. color
d. wavelength
ANSWER: d
POINTS: 1
REFERENCES: 11
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:46 AM
DATE MODIFIED: 7/25/2022 5:47 AM
27. The term___ radiant temperature describes the area-weighted average temperature of all surfaces within a room.
a. mean
b. prescribed
c. effective
d. steady-state
ANSWER: a
POINTS: 1
REFERENCES: 12
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 7/25/2022 5:47 AM
DATE MODIFIED: 7/25/2022 5:48 AM
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