HERS Exam Questions With Correct Answers
A |basement |has |exposed |stud |walls |and |concrete |floor |and |is |indirectly |conditioned; |all |walls |
are |insulated |with |paperless |fiberglass |batts. |Would |the |floor |area |be |counted |as |CFA |in |
REMrate |- |CORRECT |ANSWER✔✔-No
- |Not |finished, |indirectly |conditioned
- |Conditioned |basement |means |there |is |supply |air
An |attic |has |sprayed |foam |along |the |roofline. |Would |the |attic |volume |be |counted |as |
conditioned |volume |in |rem |rate? |- |CORRECT |ANSWER✔✔-Yes
An |attic |has |sprayed |foam |along |the |roofline. |Would |the |attic |floor |be |counted |as |CFA |in |rem |
rate? |- |CORRECT |ANSWER✔✔-No
On |a |two |story |house, |would |the |"band" |volume |be |counted |as |infiltration |volume |in |REMrate
|- |CORRECT |ANSWER✔✔-Yes
What |info |will |an |NFRC |label |contain? |- |CORRECT |ANSWER✔✔-SHGC, |U |factor, |visible |light |
transmittance
When |solar |radiation |strikes |an |untreated |single |pane |glazing |at |90 |degree |angle, |most |of |it |is:
|- |CORRECT |ANSWER✔✔-Transmitted
Does |a |radiant |barrier |receive |any |credit |in |the |REMrate |software? |- |CORRECT |ANSWER✔✔-
Yes
,Which |of |the |following |is |correct |regarding |skylights |when |entering |into |remrate |- |CORRECT |
ANSWER✔✔-Skylights |are |similar |entries |to |windows |except |their |area |is |subtracted |from |a |
ceiling |and |not |a |wall |and |the |pitch |is |needed
Thermal |Bridge |- |CORRECT |ANSWER✔✔-A |thermal |bridge, |also |called |a |cold |bridge, |heat |
bridge, |or |thermal |bypass, |is |an |area |or |component |of |an |object |which |has |higher |thermal |
conductivity |than |the |surrounding |materials, |creating |a |path |of |least |resistance |for |heat |
transfer.
Which |of |the |following |has |no |impact |on |the |effectiveness |of |installed |loose |fill |atic |insulation
|- |CORRECT |ANSWER✔✔-Temp |difference |between |conditioned |and |unconditioned |space
U(avg) |= |- |CORRECT |ANSWER✔✔-U1A1+U2A2+.../total |sq. |footage
HDD |is |used |to: |- |CORRECT |ANSWER✔✔-calc. |amount |of |energy |required |to |heat |a |house |
over |a |heating |season
Which |of |the |following |conservation |measures |will |have |the |greatest |impact |on |reducing |the |
heating |load |on |the |house |- |CORRECT |ANSWER✔✔-Going |from |no |insulation |to |some |
insulation
How |should |batt |insulation |be |installed |in |the |framed |floor |under |a |conditioned |space |- |
CORRECT |ANSWER✔✔-In |contact |with |the |bottom |of |the |subfloor
When |determining |the |dimensions |of |a |window |for |the |rating |you |should |measure |the |- |
CORRECT |ANSWER✔✔-Area |of |window |plus |flashing
When |indicating |window |dimensions |on |a |sketch, |what |must |you |record? |- |CORRECT |
ANSWER✔✔-Dimensions |to |include |frame |(A22)
,In |an |architectural |drawing, |the |front |of |the |house |faces |southwest. |Which |direction |does |the |
right |side |face? |- |CORRECT |ANSWER✔✔-Southeast
In |summer |cooling |season |what |is |overall |effect |on |HVAC |system |of |a |large |return |leak |in |an |
unconditioned |attic |- |CORRECT |ANSWER✔✔-System |decreases |efficiency
Which |of |the |following |describes. |The |portion |of |a |homes |cooling |load |caused |by |water |vapor |
that |must |be |removed |by |air |conditioner? |- |CORRECT |ANSWER✔✔-Latent
Under |summer |design |conditions |in |Houston, |TX |air |leakage |through |building |envelope |has |
what |effect |on |cooling |load? |- |CORRECT |ANSWER✔✔-Adds |sensible |and |latent |loads
What |is |the |delivered |efficiency |of |a |heating |system |that |has |efficiency |of |.80 |and |distribution |
efficiency |of |.88 |- |CORRECT |ANSWER✔✔-.70
Which |of |the |following |units |is |commonly |used |to |meter |residential |natural |gas |consumption?
|- |CORRECT |ANSWER✔✔-CCF |- |100 |cubic |feet
*Actually |charged |by |the |Therm*
Which |rating |is |typically |used |to |express |the |efficiency |of |a |central |AC |system? |- |CORRECT |
ANSWER✔✔-SEER
1 |Therm |of |natural |gas |equals |approximately |how |many |cubic |feet |of |natural |gas? |- |CORRECT |
ANSWER✔✔-100
For |about |the |same |light |output |(lumens) |a |60W |incandescent |light |bulb |would |likely |be |
replaced |by |a |CFL |using |approximately |__ |W? |- |CORRECT |ANSWER✔✔-15 |Watts
*Incandescent/4=CFC*
*Incandescent/6=LED*
, What |organization |rates |new |wood |stoves |for |their |efficiency? |- |CORRECT |ANSWER✔✔-EPA
A |house |is |very |tight |and |ductwork |is |installed |in |an |unconditioned |ended |attic. |What |house |
pressure |would |you |expect |when |the |air |handler |has |more |supply |leakage |than |return |
leakage? |- |CORRECT |ANSWER✔✔-Negative
*Supply |leaks |suck*
Which |of |the |following |is |the |most |accurate |way |to |measure |the |tightness |of |a |duct? |- |
CORRECT |ANSWER✔✔-Duct |Pressurization |Test
What |is |the |standard |pressure |at |which |duct |leakage |test |are |conducted? |- |CORRECT |
ANSWER✔✔-25 |Pa
In |a |tight |house |with |dominant |return |leaks |connected |to |the |ouse, |what |will |be |the |effects |
on |the |house |when |the |system |is |operating? |- |CORRECT |ANSWER✔✔-The |house |is |pressurized
If |the |duct |blower |was |connected |to |the |return, |what |would |be |the |effect |of |incorrectly |
placing |the |duct |pressure |probe |into |the |return |grill |instead |of |the |supply |plant |or |supply |grill?
|- |CORRECT |ANSWER✔✔-Duct |leakage |could |be |underestimated
You're |measuring |the |pressure |right |at |the |blower
Which |two |conditions |must |be |met |to |skip |the |duct |leakage |test? |- |CORRECT |ANSWER✔✔-All |
ductwork |must |be |100% |visible |and |located |inside |the |boundary |of |the |conditioned |space
What |health |and |safety |hazard |is |most |likely |to |be |cause |by |a |small |negative |building |
pressure? |- |CORRECT |ANSWER✔✔-Soil |gas |(radon) |entry |from |crawl |space
A |basement |has |exposed |stud |walls |and |concrete |floor |and |is |indirectly |conditioned; |all |walls |
are |insulated |with |paperless |fiberglass |batts. |Would |the |floor |area |be |counted |as |CFA |in |
REMrate |- |CORRECT |ANSWER✔✔-No
- |Not |finished, |indirectly |conditioned
- |Conditioned |basement |means |there |is |supply |air
An |attic |has |sprayed |foam |along |the |roofline. |Would |the |attic |volume |be |counted |as |
conditioned |volume |in |rem |rate? |- |CORRECT |ANSWER✔✔-Yes
An |attic |has |sprayed |foam |along |the |roofline. |Would |the |attic |floor |be |counted |as |CFA |in |rem |
rate? |- |CORRECT |ANSWER✔✔-No
On |a |two |story |house, |would |the |"band" |volume |be |counted |as |infiltration |volume |in |REMrate
|- |CORRECT |ANSWER✔✔-Yes
What |info |will |an |NFRC |label |contain? |- |CORRECT |ANSWER✔✔-SHGC, |U |factor, |visible |light |
transmittance
When |solar |radiation |strikes |an |untreated |single |pane |glazing |at |90 |degree |angle, |most |of |it |is:
|- |CORRECT |ANSWER✔✔-Transmitted
Does |a |radiant |barrier |receive |any |credit |in |the |REMrate |software? |- |CORRECT |ANSWER✔✔-
Yes
,Which |of |the |following |is |correct |regarding |skylights |when |entering |into |remrate |- |CORRECT |
ANSWER✔✔-Skylights |are |similar |entries |to |windows |except |their |area |is |subtracted |from |a |
ceiling |and |not |a |wall |and |the |pitch |is |needed
Thermal |Bridge |- |CORRECT |ANSWER✔✔-A |thermal |bridge, |also |called |a |cold |bridge, |heat |
bridge, |or |thermal |bypass, |is |an |area |or |component |of |an |object |which |has |higher |thermal |
conductivity |than |the |surrounding |materials, |creating |a |path |of |least |resistance |for |heat |
transfer.
Which |of |the |following |has |no |impact |on |the |effectiveness |of |installed |loose |fill |atic |insulation
|- |CORRECT |ANSWER✔✔-Temp |difference |between |conditioned |and |unconditioned |space
U(avg) |= |- |CORRECT |ANSWER✔✔-U1A1+U2A2+.../total |sq. |footage
HDD |is |used |to: |- |CORRECT |ANSWER✔✔-calc. |amount |of |energy |required |to |heat |a |house |
over |a |heating |season
Which |of |the |following |conservation |measures |will |have |the |greatest |impact |on |reducing |the |
heating |load |on |the |house |- |CORRECT |ANSWER✔✔-Going |from |no |insulation |to |some |
insulation
How |should |batt |insulation |be |installed |in |the |framed |floor |under |a |conditioned |space |- |
CORRECT |ANSWER✔✔-In |contact |with |the |bottom |of |the |subfloor
When |determining |the |dimensions |of |a |window |for |the |rating |you |should |measure |the |- |
CORRECT |ANSWER✔✔-Area |of |window |plus |flashing
When |indicating |window |dimensions |on |a |sketch, |what |must |you |record? |- |CORRECT |
ANSWER✔✔-Dimensions |to |include |frame |(A22)
,In |an |architectural |drawing, |the |front |of |the |house |faces |southwest. |Which |direction |does |the |
right |side |face? |- |CORRECT |ANSWER✔✔-Southeast
In |summer |cooling |season |what |is |overall |effect |on |HVAC |system |of |a |large |return |leak |in |an |
unconditioned |attic |- |CORRECT |ANSWER✔✔-System |decreases |efficiency
Which |of |the |following |describes. |The |portion |of |a |homes |cooling |load |caused |by |water |vapor |
that |must |be |removed |by |air |conditioner? |- |CORRECT |ANSWER✔✔-Latent
Under |summer |design |conditions |in |Houston, |TX |air |leakage |through |building |envelope |has |
what |effect |on |cooling |load? |- |CORRECT |ANSWER✔✔-Adds |sensible |and |latent |loads
What |is |the |delivered |efficiency |of |a |heating |system |that |has |efficiency |of |.80 |and |distribution |
efficiency |of |.88 |- |CORRECT |ANSWER✔✔-.70
Which |of |the |following |units |is |commonly |used |to |meter |residential |natural |gas |consumption?
|- |CORRECT |ANSWER✔✔-CCF |- |100 |cubic |feet
*Actually |charged |by |the |Therm*
Which |rating |is |typically |used |to |express |the |efficiency |of |a |central |AC |system? |- |CORRECT |
ANSWER✔✔-SEER
1 |Therm |of |natural |gas |equals |approximately |how |many |cubic |feet |of |natural |gas? |- |CORRECT |
ANSWER✔✔-100
For |about |the |same |light |output |(lumens) |a |60W |incandescent |light |bulb |would |likely |be |
replaced |by |a |CFL |using |approximately |__ |W? |- |CORRECT |ANSWER✔✔-15 |Watts
*Incandescent/4=CFC*
*Incandescent/6=LED*
, What |organization |rates |new |wood |stoves |for |their |efficiency? |- |CORRECT |ANSWER✔✔-EPA
A |house |is |very |tight |and |ductwork |is |installed |in |an |unconditioned |ended |attic. |What |house |
pressure |would |you |expect |when |the |air |handler |has |more |supply |leakage |than |return |
leakage? |- |CORRECT |ANSWER✔✔-Negative
*Supply |leaks |suck*
Which |of |the |following |is |the |most |accurate |way |to |measure |the |tightness |of |a |duct? |- |
CORRECT |ANSWER✔✔-Duct |Pressurization |Test
What |is |the |standard |pressure |at |which |duct |leakage |test |are |conducted? |- |CORRECT |
ANSWER✔✔-25 |Pa
In |a |tight |house |with |dominant |return |leaks |connected |to |the |ouse, |what |will |be |the |effects |
on |the |house |when |the |system |is |operating? |- |CORRECT |ANSWER✔✔-The |house |is |pressurized
If |the |duct |blower |was |connected |to |the |return, |what |would |be |the |effect |of |incorrectly |
placing |the |duct |pressure |probe |into |the |return |grill |instead |of |the |supply |plant |or |supply |grill?
|- |CORRECT |ANSWER✔✔-Duct |leakage |could |be |underestimated
You're |measuring |the |pressure |right |at |the |blower
Which |two |conditions |must |be |met |to |skip |the |duct |leakage |test? |- |CORRECT |ANSWER✔✔-All |
ductwork |must |be |100% |visible |and |located |inside |the |boundary |of |the |conditioned |space
What |health |and |safety |hazard |is |most |likely |to |be |cause |by |a |small |negative |building |
pressure? |- |CORRECT |ANSWER✔✔-Soil |gas |(radon) |entry |from |crawl |space
