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PHIUS 2022 Exam Practice Questions And Answers Graded A+!!!
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Which three of the following building components provide the most protection from rain for a building? Select one or more: a. Flashing b. Thermal breaks c. Water-resistive barrier d. Rain gutters and downspouts e. Ground moisture barriers f. Vapor retarders g. Capillary barriers - ANS ...

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  • October 27, 2024
  • 53
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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PHIUS 2022 Exam Practice Questions
And Answers Graded A+!!!


Which three of the following building components provide the most protection from rain for a
building? Select one or more:
a. Flashing
b. Thermal breaks
c. Water-resistive barrier
d. Rain gutters and downspouts
e. Ground moisture barriers
f. Vapor retarders
g. Capillary barriers - ANS *a. Flashing*
b. Thermal breaks
*c. Water-resistive barrier *
*d. Rain gutters and downspouts*
e. Ground moisture barriers
f. Vapor retarders
g. Capillary barriers

Which three of the following factors are required to calculate the amount of heating or cooling
deliverable by ventilation airflow? Select one or more:
a. Temperature correction factor
b. Heat capacity of air at the appropriate altitude
c. Ventilation airflow rate
d. Annual heating degree hours
e. Temperature difference between the incoming air and the air temperature exiting the
heating/cooling coil - ANS a. Temperature correction factor
*b. Heat capacity of air at the appropriate altitude*
*c. Ventilation airflow rate*
d. Annual heating degree hours
*e. Temperature difference between the incoming air and the air temperature exiting the
heating/cooling coil*

An air space located on the outer side of foam insulation will protect the foam from______ and
______. - ANS High Temperature and Bulk Water

_______ is the process by which water vapor changes to liquid water. Select one:
a. Evaporation

,b. Condensation
c. Precipitation
d. Transpiration - ANS a. Evaporation
*b. Condensation*
c. Precipitation
d. Transpiration

A building product rated at 5 perms of water-vapor permeability is a _________vapor retarder.
Select one:
a. Premium
b. Class II
c. Class III
d. Grade A - ANS a. Premium
b. Class II
*c. Class III*
d. Grade A

Air and water typically constitutes _______ of soil volume? Select one:
a. 25%
b. 50%
c. 32%
d. 75% - ANS a. 25%
*b. 50%*
c. 32%
d. 75%

The term "framing factor" refers to? - ANS The percentage of a given area of a building
assembly that consists of framing

The ASHRAE/IECC climate zones in the U.S. are numbered from what to what? (warmest to
coldest) - ANS 1 (warmest), to 8 (coldest)

The units of measurement of Gt are? - ANS Heating degree hours (kBTU/yr)

THe ASHRAE/IECC climate zones are labeled with ___ for moist zones, ____ for dry zones,
and ______ for marine zones - ANS A,B,C

In the peak load calculation ______ characterizes climate. In the annual heat demand
calculation, ______ characterizes climate. - ANS Delta T, Gt

What advantage does a metal-clad window have over a vinyl window? Select one:
a. Lighter Weight
b. More durable material
c. Easier to install

,d. lower cost - ANS a. Lighter Weight
*b. More durable material*
c. Easier to install
d. lower cost

Cellulose is moisture resistant and is undamaged by wetting, true or false? - ANS a. True
*b. False*

Low-e coatings reduce the U-factor of a window compared to standard clear glass, true or
false? - ANS *a. True*
b. False

What window performance characteristic is most important to control heat gain in a
cooling-dominated climate? Select one:
a. Solar heat gain coefficient
b. U-factor
c. Infrared Transmittance
d. Visible transmittance - ANS *a. Solar heat gain coefficient*
b. U-factor
c. Infrared Transmittance
d. Visible transmittance

What window performance characteristic is most important to control heat gain in a
heating-dominated climate?
a. Solar heat gain coefficient
b. U-factor
c. Infrared Transmittance
d. Visible transmittance - ANS a. Solar heat gain coefficient
*b. U-factor*
c. Infrared Transmittance
d. Visible transmittance

Which variable in the formula for peak ventilation load (Pv = nv x VC x pp x Delta T) is treated
as a constant?
a. Chi value
b. Specific heat capacity of air
c. Temperature
d. Conductivity - ANS a. Chi value
*b. Specific heat capacity of air*
c. Temperature
d. Conductivity

Which of the following units of measurement does PHIUS use to specify whole building air
leakage?

, a. CFM50 per square foot of building enclosure
b. Btu per cubic foot per hour
c. ACH50
d. CFM50 per cubic foot of volume - ANS *a. CFM50 per square foot of building enclosure*
b. Btu per cubic foot per hour
c. ACH50
d. CFM50 per cubic foot of volume

How do you find Delta T from the outdoor design temperature for a Peak Heating Load
calculation?
a. From the National Oceanic and Atmospheric Administration
b. Directly from the PHIUS climate database
c. Add the design temperature to the customer's thermostat setpoint.
d. Subtract the design temperature from the interior heating setpoint (68 degrees F) - ANS
a. From the National Oceanic and Atmospheric Administration
b. Directly from the PHIUS climate database
c. Add the design temperature to the customer's thermostat setpoint.
*d. Subtract the design temperature from the interior heating setpoint (68 degrees F)*

Which two of the following materials would you classify as Class I vapor retarders? Select one
or more:
a. Kraft paper laminated with aluminum foil
b. Asphalt impregnated fiberboard
c. Zip sheathing
d. Polyethylene sheathing
e. Polyoefin house wrap - ANS *a. Kraft paper laminated with aluminum foil*
b. Asphalt impregnated fiberboard
c. Zip sheathing
*d. Polyethylene sheathing*
e. Polyoefin house wrap

Why does the Western US and Canada get more solar radiation than the Eastern US and
Canada?
a. More mountainous
b. Fewer Clouds
c. Air is denser in the West
d. More humid - ANS a. More mountainous
*b. Fewer Clouds*
c. Air is denser in the West
d. More humid

Why does the Ester US and Canada have more rainfall and higher relative humidity compared
to the Wester US and Canada
a. The Easter US has more proximity to bodies of water

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