BCN 2592 RESIDENTIAL ENERGY QUIZ 1 QUESTIONS
WITH COMPLETE SOLUTIONS
Air conditioners and heat pumps move heat from one location to
another by using_____ liquid refrigerant vaporizes in the
evaporator coil making it cold which in turn allows it to pick up
the heat from the warm room air the refrigerant is compressed
and sent to____ which turns it back to liquid releasing its Latent
heat
. latent heat
. condenser
According to our book only about_____ the electricity of
incandescent bulbs is converted to light the remainders heat
fluorescent convert about____ into light
. 10%
. 80%
what is a solenoid
They work as relays and controllers
what are control circuits
Low voltage that controls the flow of electricity
Buy metal elements are temperature sensitive____the most
common are____
. Metal coils and strips
. Thermostats and limits
,What do thermistors and photoresistors do
. Thermistors exhibit a predictable and precise corresponding to
temperature change photo resistors indicate presence or absence
of light
Existing buildings modifications to the enveloped is called
. Weatherization
Although there are many things involved_____ comply the
largest energy demand the______ makes decisions about
weatherization in new constructions it is usually the architect or
engineer
. Heat loss and gain
. Energy auditor
Do multifamily buildings have different points of weaknesses
than a single family
. Yes they share shafts and pipes
How does he flow through a wall
. conduction
Where do you get air leakage
. Where materials meet
Is the main complaint or problem with fenestration air leakage:
its the passing through of color energy
is it important to find the ___ _____ in buildings because a large
percentage of the heat flows happen there.
, thermal weakpoints
In tracer-gas testing gas is released indoors and measured to see
how fast outdoor air is diluting it. Why is it more accurate than
blower-door testing in measuring natural air change rate:
Leaks 5 times more with duct system
u factor is the_____ the total u factor of a wall or ceiling is
based on___ of the u factors
. inverse of r value
. weighted average
u factor can't be ____ like r values can
added together
the worst case estimate of the heat gain in BTUH is called
the____
cooling load
this can run from_____ of air cooling. estimating leakage based
on crack size was not accurate because:
. 5-40%
. neglected air leaks in hidden locations
does air leak through construction materials like drywall and
block?
yes
pressure and air flow can be measured with a _____ it is the air
moving the inside and outside the building that creates the air
pressure that affect the building
WITH COMPLETE SOLUTIONS
Air conditioners and heat pumps move heat from one location to
another by using_____ liquid refrigerant vaporizes in the
evaporator coil making it cold which in turn allows it to pick up
the heat from the warm room air the refrigerant is compressed
and sent to____ which turns it back to liquid releasing its Latent
heat
. latent heat
. condenser
According to our book only about_____ the electricity of
incandescent bulbs is converted to light the remainders heat
fluorescent convert about____ into light
. 10%
. 80%
what is a solenoid
They work as relays and controllers
what are control circuits
Low voltage that controls the flow of electricity
Buy metal elements are temperature sensitive____the most
common are____
. Metal coils and strips
. Thermostats and limits
,What do thermistors and photoresistors do
. Thermistors exhibit a predictable and precise corresponding to
temperature change photo resistors indicate presence or absence
of light
Existing buildings modifications to the enveloped is called
. Weatherization
Although there are many things involved_____ comply the
largest energy demand the______ makes decisions about
weatherization in new constructions it is usually the architect or
engineer
. Heat loss and gain
. Energy auditor
Do multifamily buildings have different points of weaknesses
than a single family
. Yes they share shafts and pipes
How does he flow through a wall
. conduction
Where do you get air leakage
. Where materials meet
Is the main complaint or problem with fenestration air leakage:
its the passing through of color energy
is it important to find the ___ _____ in buildings because a large
percentage of the heat flows happen there.
, thermal weakpoints
In tracer-gas testing gas is released indoors and measured to see
how fast outdoor air is diluting it. Why is it more accurate than
blower-door testing in measuring natural air change rate:
Leaks 5 times more with duct system
u factor is the_____ the total u factor of a wall or ceiling is
based on___ of the u factors
. inverse of r value
. weighted average
u factor can't be ____ like r values can
added together
the worst case estimate of the heat gain in BTUH is called
the____
cooling load
this can run from_____ of air cooling. estimating leakage based
on crack size was not accurate because:
. 5-40%
. neglected air leaks in hidden locations
does air leak through construction materials like drywall and
block?
yes
pressure and air flow can be measured with a _____ it is the air
moving the inside and outside the building that creates the air
pressure that affect the building
