Gas
Heat
/
ESCO Exam Questions With Correct Answers
/ / / / / /
A
/gas
/furnace
/is
/to
/be
/installed
/in /
a
/garage.
/The
/national
/standards /require /that /the /burners /and /ignition /sources /must /be /located /above /the /floor.
a. /6 /inches.
b. /12 /inches.
C. /18 /inches. /
d. /24 /inches /- /verified /answer(s)-✔✔C. /18 /inches.
A /good /description /of /how /a /bi-metal /fan /switch /operates /the /blower /motor /on /a /gas /furnace
/is:
a. /Temperature /on-time /off.
b. /Time /on-temperature /off.
,c. /Temperature /on-temperature /off.
d. /Time /on-time /off. /- /verified /answer(s)-✔✔c. /Temperature /on-temperature /off.
Redundant /gas /valves /used /on /gas /furnaces /have:
a. /Two /manual /gas /shut /offs.
b. /No /manual /gas /shut /off.
c. /One /gas /shut /off /seat.
d. /Dual /gas /shut /off /seats. /- /verified /answer(s)-✔✔d. /Dual /gas /shut /off /seats.
Burning
/one /cubic /foot /of /Liquefied /Petroleum /gas /completely /will /produce /approximately /______
BTUs.
a. /2,000-2,500. /
b. /1,500-2,000.
С. /1,200-1,500.
d. /900-1,000. /- /verified /answer(s)-✔✔a. /2,000-2,500.
LP /gas /has /a /specific /gravity /of
a. /.4-.8
b. /1.0-1.1
c. /1.5-2.0
d. /2.5-3.0 /- /verified /answer(s)-✔✔c. /1.5-2.0
,What /is /the /purpose /of /a /spoiler /screw /located /on /a /burner, /or /adjustable-shutters?
a. /Mix /combustion /and /dilution /air.
b. /Mix /primary /and /secondary /air.
c. /Mix /primary /air /and /gas.
d. /Mix /dilution /and /excess /air. /- /verified /answer(s)-✔✔c. /Mix /primary /air /and /gas.
Furnace /limit /switches /are /wired /in /series /with /the:
a. /Low /speed /fan.
b. /High /speed /fan.
c. /Gas /valve.
d. /Heat /anticipator. /- /verified /answer(s)-✔✔c. /Gas /valve.
A
/technician
/is
/using
/an
/extension
/ladder
/to /work /o /a /roof /top /unit. /The /top /of /the /ladder /should /extend /beyond /the /support /point.
a. /1 /foot.
b. /2 /feet.
C. /3 /feet.
d. /4 /feet /- /verified /answer(s)-✔✔C. /3 /feet.
, A
/technician
/determines
/that /a /natural /gas /furnace /has /a /defective /heat /exchanger. /The /technician /should:
a. /Inform /the /gas /company.
b. /Turn /the /power /to /the /furnace /off.
c. /Turn /the /gas /main /supply /gas /to /the /home.
d. /Inform /the /homeowner /and /turn /the /gas /off. /- /verified /answer(s)-
✔✔d. /Inform /the /homeowner /and /turn /the /gas /off.
A /natural /gas /furnace /usually /requires /_____ /gas /pressure /at /the /manifold /and /burners.
a. /3.5 /in. /W.C.
b. /4.2 /in. /W.C.
c. /5.0 /in. /W.C.
d. /7.0 /in. /W.C. /- /verified /answer(s)-✔✔a. /3.5 /in. /W.C.
The /vent /system /for /a /condensing /furnace /is /classified /as /______
by /the /National /Field /Gas /Code.
a. /Category /I
b. /Category /Il
c. /Category /Ill
d. /Category /IV /- /verified /answer(s)-✔✔d. /Category /IV
Type /B /vent /pipe /must /be /kept /at /least /______ /from /combustible /materials.
Heat
/
ESCO Exam Questions With Correct Answers
/ / / / / /
A
/gas
/furnace
/is
/to
/be
/installed
/in /
a
/garage.
/The
/national
/standards /require /that /the /burners /and /ignition /sources /must /be /located /above /the /floor.
a. /6 /inches.
b. /12 /inches.
C. /18 /inches. /
d. /24 /inches /- /verified /answer(s)-✔✔C. /18 /inches.
A /good /description /of /how /a /bi-metal /fan /switch /operates /the /blower /motor /on /a /gas /furnace
/is:
a. /Temperature /on-time /off.
b. /Time /on-temperature /off.
,c. /Temperature /on-temperature /off.
d. /Time /on-time /off. /- /verified /answer(s)-✔✔c. /Temperature /on-temperature /off.
Redundant /gas /valves /used /on /gas /furnaces /have:
a. /Two /manual /gas /shut /offs.
b. /No /manual /gas /shut /off.
c. /One /gas /shut /off /seat.
d. /Dual /gas /shut /off /seats. /- /verified /answer(s)-✔✔d. /Dual /gas /shut /off /seats.
Burning
/one /cubic /foot /of /Liquefied /Petroleum /gas /completely /will /produce /approximately /______
BTUs.
a. /2,000-2,500. /
b. /1,500-2,000.
С. /1,200-1,500.
d. /900-1,000. /- /verified /answer(s)-✔✔a. /2,000-2,500.
LP /gas /has /a /specific /gravity /of
a. /.4-.8
b. /1.0-1.1
c. /1.5-2.0
d. /2.5-3.0 /- /verified /answer(s)-✔✔c. /1.5-2.0
,What /is /the /purpose /of /a /spoiler /screw /located /on /a /burner, /or /adjustable-shutters?
a. /Mix /combustion /and /dilution /air.
b. /Mix /primary /and /secondary /air.
c. /Mix /primary /air /and /gas.
d. /Mix /dilution /and /excess /air. /- /verified /answer(s)-✔✔c. /Mix /primary /air /and /gas.
Furnace /limit /switches /are /wired /in /series /with /the:
a. /Low /speed /fan.
b. /High /speed /fan.
c. /Gas /valve.
d. /Heat /anticipator. /- /verified /answer(s)-✔✔c. /Gas /valve.
A
/technician
/is
/using
/an
/extension
/ladder
/to /work /o /a /roof /top /unit. /The /top /of /the /ladder /should /extend /beyond /the /support /point.
a. /1 /foot.
b. /2 /feet.
C. /3 /feet.
d. /4 /feet /- /verified /answer(s)-✔✔C. /3 /feet.
, A
/technician
/determines
/that /a /natural /gas /furnace /has /a /defective /heat /exchanger. /The /technician /should:
a. /Inform /the /gas /company.
b. /Turn /the /power /to /the /furnace /off.
c. /Turn /the /gas /main /supply /gas /to /the /home.
d. /Inform /the /homeowner /and /turn /the /gas /off. /- /verified /answer(s)-
✔✔d. /Inform /the /homeowner /and /turn /the /gas /off.
A /natural /gas /furnace /usually /requires /_____ /gas /pressure /at /the /manifold /and /burners.
a. /3.5 /in. /W.C.
b. /4.2 /in. /W.C.
c. /5.0 /in. /W.C.
d. /7.0 /in. /W.C. /- /verified /answer(s)-✔✔a. /3.5 /in. /W.C.
The /vent /system /for /a /condensing /furnace /is /classified /as /______
by /the /National /Field /Gas /Code.
a. /Category /I
b. /Category /Il
c. /Category /Ill
d. /Category /IV /- /verified /answer(s)-✔✔d. /Category /IV
Type /B /vent /pipe /must /be /kept /at /least /______ /from /combustible /materials.
