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WorksheetsHydronic Heating, Heat Transfer and Comfort
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
The sun shines down on this family as the play on the beach. Which type of heat transfer are they feeling?
a)
conduction
b)
convection
c)
radiation
d)
evaporation
2.
While walking on the warm sand with your bare feet you experience heat through.
a)
conduction
b)
convection
c)
radiation
d)
evaporation
3.
Blow drying your wet hair uses __________ type of heat.
a)
conduction
b)
convection
c)
radiation
d)
evaporation
4.
The warm air from this heat emitter creates a ____________current as the warm air rises and the cold air sinks.
a)
conduction
b)
convection
c)
radiation
d)
evaporation
5.
Heat transfers from an area of ____temperature to an area of ___ temperature.
(2nd law of thermodynamics)
(2nd law of thermodynamics)
a)
high to low
b)
low to high
c)
high to high
d)
low to low
6.
The 3 main components of a hydronic heating system are: the heat source, the heat transfer units and the
a)
pump
b)
expansion device
c)
distribution system
d)
controls
7.
Which answer is NOT a heat source?
a)
heat exchanger
b)
the sun
c)
boiler
d)
radiator
8.
Which answer is NOT a heat transfer unit?
a)
radiator
b)
unit heater
c)
diffuser
d)
hot water coil
9.
A hot water heating distribution system consists of all of the piping, including the valves, fittings and the circulator.
a)
true
b)
false
10.
In hydronic heating, the term comfort basically means that people feel comfortable when
a)
they feel relatively warm as in a sunny room
b)
they feel fairly cool as in a nicely air conditioned room
c)
they feel neither warm or cool while wearing light clothing
d)
they feel neither warm or cool while wearing heavy winter clothing
11.
Human comfort level can vary from person to person, a hydronic heating system attempts to satisfy
a)
all of the occupants
b)
the owner of the space
c)
a majority of the occupants
d)
the chosen few
12.
When people are actively moving they generate more body heat and change their comfort level
a)
true
b)
false
13.
Thermal comfort of people is dependent on more than just temperature. Humidity, air currents and clothing are some of the variables that can affect human comfort.
a)
true
b)
false
14.
Heat moves towards cold. Heat itself does not rise! Hot air and/or hot water rises due to its lower density.
a)
true
b)
false
15.
When the turtle goes into the water which type of heat transfer will stop occurring?
a)
radiation
b)
convection
c)
conduction
d)
evaporation
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