Gas Heat esco exam Questions With Complete Solutions
A "spud" or burner orifice: Correct Answers meters gas to the
burner
A BTU is the amount of heat required to raise the temperature of
one pound of water: Correct Answers one degree Fahrenheit
A Category I natural gas furnace has a typical air temperature
rise of: Correct Answers 40 F - 70 F
A customer complains that a 2-year old gas furnace will not
light. The technician determines that the furnace locks out will
attempting to light. He reads 19 VAC at the gas valve and
concludes: Correct Answers Transformer could be faulty
A customer tells a technician that his six month old furnace
stops heating before the residence is warm. This happens only
on very cold nights. The technician light the furnace, and tries to
adjust the gas valve, but the flames do not change. He suspect:
Correct Answers a defective gas valve regulator
A dedicated vent system: Correct Answers is the only vent for
an appliance
A furnace nameplate specifies a temperature rise of 40 - 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to: Correct Answers
increase fan speed
, A furnace nameplate specifies a temperature rise of 40 to 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to: Correct Answers
increase fan speed
A furnace with a hot surface igniter will not light. Before
changing the igniter the technician should: Correct Answers
check voltage to igniter
A gas furnace has an electronic control board. How is the fan
cycled during heating? Correct Answers time
A gas furnace has an induced draft fan. Which switch must
operate properly before ignition sequence starts? Correct
Answers differential air pressure
A gas furnace to be installed in a garage. The national standards
requires that the burners and ignition must be located ____
above the floor: Correct Answers 18 inches
A gas valve with 100% shut-off means: Correct Answers gas
to a pilot and manifold is shut off
A GFCI circuit breaker detects: Correct Answers current leaks
to ground
A good description of how a bi-metal fan switch operates the
blower motor on a gas furnace is: Correct Answers
Temperature on/ Temperature off
A "spud" or burner orifice: Correct Answers meters gas to the
burner
A BTU is the amount of heat required to raise the temperature of
one pound of water: Correct Answers one degree Fahrenheit
A Category I natural gas furnace has a typical air temperature
rise of: Correct Answers 40 F - 70 F
A customer complains that a 2-year old gas furnace will not
light. The technician determines that the furnace locks out will
attempting to light. He reads 19 VAC at the gas valve and
concludes: Correct Answers Transformer could be faulty
A customer tells a technician that his six month old furnace
stops heating before the residence is warm. This happens only
on very cold nights. The technician light the furnace, and tries to
adjust the gas valve, but the flames do not change. He suspect:
Correct Answers a defective gas valve regulator
A dedicated vent system: Correct Answers is the only vent for
an appliance
A furnace nameplate specifies a temperature rise of 40 - 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to: Correct Answers
increase fan speed
, A furnace nameplate specifies a temperature rise of 40 to 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to: Correct Answers
increase fan speed
A furnace with a hot surface igniter will not light. Before
changing the igniter the technician should: Correct Answers
check voltage to igniter
A gas furnace has an electronic control board. How is the fan
cycled during heating? Correct Answers time
A gas furnace has an induced draft fan. Which switch must
operate properly before ignition sequence starts? Correct
Answers differential air pressure
A gas furnace to be installed in a garage. The national standards
requires that the burners and ignition must be located ____
above the floor: Correct Answers 18 inches
A gas valve with 100% shut-off means: Correct Answers gas
to a pilot and manifold is shut off
A GFCI circuit breaker detects: Correct Answers current leaks
to ground
A good description of how a bi-metal fan switch operates the
blower motor on a gas furnace is: Correct Answers
Temperature on/ Temperature off
