HVACR GAS HEATING ESCO EXAM 2026
WITH UPDATED VERIFIED QUESTIONS
AND ANSWERS | WITH 100% CORRECT
ANSWERS | GRADED A+| GUARANTEED
SUCCESS | HVACR GAS HEATING ESCO
LATEST EXAM 2026 [NEW VERSION]
when the burners are ignited, the blower is delayed to... - ANSWER-allow the heat
exchanger to warm up
gas piping must be installed with a pitch of - ANSWER-1/4 inch per 15ft
pipe joint compound should be applied to - ANSWER-the male threads, not last 2
threads
if voltage is applied across 2 speed terminals on a fan motor at the same time, the
motor - ANSWER-runs too fast
what is the result of an oversized mid efficiency furnace - ANSWER-the heat
exchanger corrodes
, what draft moves flue gas through the heat exchange - ANSWER-mechanical
furnace designed with the blower motor under the heat exchange is the -
ANSWER-upflow
a gas furnace is installed in a garage, the burners are - ANSWER-18 inches above
floor
a carryover on a gas burner.. - ANSWER-provides smooth lighting of all burners
100% shutoff means - ANSWER-gas to the pilot and manifold are shut off
a limit switch deenergizes the - ANSWER-gas valve if it overheats
what checks the pressure of a furnace - ANSWER-manometer
burning 1ft of natural gas produces - ANSWER-900-1100 BTU
efficiency ratings of gas burning appliances is determined with - ANSWER-AFUE
a furnace is converted from natural gas, there is soot, why - ANSWER-low gas
pressure
using an ohmmeter, there is 120 VAC between high speed and ground wires, this
indicates - ANSWER-open
if temperature rise is too high... - ANSWER-increase fan speed
WITH UPDATED VERIFIED QUESTIONS
AND ANSWERS | WITH 100% CORRECT
ANSWERS | GRADED A+| GUARANTEED
SUCCESS | HVACR GAS HEATING ESCO
LATEST EXAM 2026 [NEW VERSION]
when the burners are ignited, the blower is delayed to... - ANSWER-allow the heat
exchanger to warm up
gas piping must be installed with a pitch of - ANSWER-1/4 inch per 15ft
pipe joint compound should be applied to - ANSWER-the male threads, not last 2
threads
if voltage is applied across 2 speed terminals on a fan motor at the same time, the
motor - ANSWER-runs too fast
what is the result of an oversized mid efficiency furnace - ANSWER-the heat
exchanger corrodes
, what draft moves flue gas through the heat exchange - ANSWER-mechanical
furnace designed with the blower motor under the heat exchange is the -
ANSWER-upflow
a gas furnace is installed in a garage, the burners are - ANSWER-18 inches above
floor
a carryover on a gas burner.. - ANSWER-provides smooth lighting of all burners
100% shutoff means - ANSWER-gas to the pilot and manifold are shut off
a limit switch deenergizes the - ANSWER-gas valve if it overheats
what checks the pressure of a furnace - ANSWER-manometer
burning 1ft of natural gas produces - ANSWER-900-1100 BTU
efficiency ratings of gas burning appliances is determined with - ANSWER-AFUE
a furnace is converted from natural gas, there is soot, why - ANSWER-low gas
pressure
using an ohmmeter, there is 120 VAC between high speed and ground wires, this
indicates - ANSWER-open
if temperature rise is too high... - ANSWER-increase fan speed
