Deck 1: Modern Hydronic Heating

Question 1

Properly designed hydronic systems control both the air temperature and surface temperatures of rooms to maintain optimal comfort.

Answer 1

True

Question 2

Buildings with hydronic heating systems have shown ____ heating energy use compared to equivalent structures with forced-air heating systems.

A) higher
B) lower
C) equal
D) unquantifiable

Answer 2

B

Question 3

Heat emitters that use fans or blowers to force air through a heat exchanger are usually called fan coils or air ____.

A) handlers
B) tunnels
C) wavers
D) blowers

Answer 3

A

Question 4

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.

A) molecular attraction
B) thermonics
C) hydraulics
D) buoyancy

Question 5

Ideally, the water in a hydronic heating system is replaced in the system every year.

Question 6

The simplest hydronic system can be described as a loop or piping circuit.

Question 7

Hydronic heating systems use water (or water-based solutions) to move thermal energy from where it is produced to where it is needed.

Question 8

In an ideal application, the rate of heat production by the heat source would ____ the rate of heat by the heat emitters.

A) exactly match
B) exceed
C) remain lower than
D) depend on

Question 9

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) heat
B) vapor
C) molecular
D) space efficient

Question 10

In single-loop systems, the flow-check valve prevents hot water in the boiler from slowly circulating through the distribution system when the circulator is off.

Question 11

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

Question 12

Thermal radiation is probably the least understood mode of heat transfer.

Question 13

Maintaining comfort is simply a matter of supplying heat to the body.

Question 14

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

Question 15

Providing comfort is the secondary objective of any heating system designer or installer.

Question 16

Not every heating system consists of devices that convert one form of energy into another.

Question 17

Heat is our perception of atomic vibrations within a material.Our means of expressing the intensity of these vibrations is called ____.

A) harmonics
B) temperature
C) cellular reaction
D) tuning

Question 18

All hydronic heating systems will inherently attempt to find a point of ____ and remain in operation at that point.

A) level capacity
B) even hydraulic flow
C) thermal equilibrium
D) customer comfort

Question 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) thermosiphon
C) off switch
D) flow-check valve

Question 20

A properly designed and installed hydronic system can operate with virtually no detectable sound levels in the occupied areas of a home.