Title: Unit 1-3 Test
Course: HAC 140 Weatherization > Section: HAC 140 Weatherization

Q: The simple savings-to-investment ration (SIR) is calculated by:
- The amount of energy savings divided by the cost to install a measure.
- The amount of energy savings multiplied by cost to install a measure.
- The cost of a measure divided by program support.
A: The amount of energy savings divided by the cost to install a measure.

Q: An example of a relatively new weatherization measure is:
- A storm window.
- Mobile home skirting.
- Blower door guided air sealing.
A: Blower door guided air sealing.

Q: The type of heat transfer that does not require physical contact or a medium is:
- Conduction
- Convection
- Radiation
A: Radiation

Q: The air barrier in most homes is made up of the:
- Roof deck
- Drywall
- Insulation blanket
A: Drywall

Q: Which of these is one of the principles of thermodynamics?
- E= mc2
- Energy always goes from high to low.
- A body in motion tends to stay in motion.
A: Energy always goes from high to low.

Q: A feature of the weatherization program that was not typical nationwide in the early 1990’s was:
- Comprehensive diagnostic technology
- States had health and safety plans
- Structured training and technical assistance
A: Comprehensive diagnostic technology

Q: Why are platform framed houses less likely than balloon framed houses to have vertical air leakage?
- Less knob and tube wiring
- No plumbing chaseways
- Fewer vertical pathways
A: Fewer vertical pathways

Q: Which of the following is not a step for the installation of an in-jamb replacement window?
- Remove all interior and exterior window trim
- Seal the perimeter with low expanding foam
- Score all painted joints with a sharp utility knife
A: Remove all interior and exterior window trim

Q: A well-sealed air barrier plays a major role in:
- Providing a vapor retarder and retarding heat flow through the building.
- Retarding the movement of heat and moisture through the building
- c. Insulating the thermal envelope and deadening sound
A: Retarding the movement of heat and moisture through the building

Q: An example of an air leakage driving force caused by a temperature difference between the inside and outside of a home is:
- Fan effect
- Wind effect
- Stack effect
A: Stack effect

Q: Positive pressure in a room is most likely caused by which of these scenarios?
- Unsealed ductwork running through interior walls
- Closed, tight fitting door and supply vents
- A clothes dryer vented into the crawlspace below the room
A: Closed, tight fitting door and supply vents

Q: Balloon framing can be detected by the presence of:
- Sill plates
- Double top plated partition walls
- Open topped wall stud bays in an attic
A: Sill plates

Q: The characteristics of platform framing include:
- Wall framing capped with top plates
- Long, vertical framing for exterior walls
- Floor joists fastened to ledger boards
A: Wall framing capped with top plates

Q: What is the main difference between the thermal boundary and the air barrier?
- The air barrier is always in the attic
- The air barrier limits heat flow between inside and outside
- Insulation is present in the thermal boundary
A: Insulation is present in the thermal boundary

Q: Which of the following BEST identifies the criteria for selection of measures to be installed in a home with WAP funds?
- Skill and resources of local crews/contractors
- Cost-effectiveness based on building science and energy prices
- Availability of fiberglass or cellulose insulation for dense-packing
A: Cost-effectiveness based on building science and energy prices