NATE/ICE Gas Furnace Exam Questions & Answers Latest Update
NATE/ICE Gas Furnace Exam Questions &
Answers Latest Update.
What type of furnace needs a combustible floor base? - ✔✔✔ - A downflow furnace
What is the combustible floor base made out of? - ✔✔✔ - Fiberglass
Closet installation require close attention to be paid to _____ transmission - ✔✔✔ - noise
On a call for heat the circuit board will look for? - ✔✔✔ - Closed thermal switches:
* High limit control
* Flame roll-out
* Secondary limits
* Open pressure switch
The inducer will be energized for the _____ perious - ✔✔✔ - pre-purge
The pressure switch will close proving the _____ operation - ✔✔✔ - inducer
the gas valve will open for a trial period of _____ to _____ seconds - ✔✔✔ - 5 to 7
A flame failure during a call for heat will be detected within _____ seconds - ✔✔✔ - 0.8
products of combustion include - ✔✔✔ - * Carbon dioxide
* Nitrogen
* Water vapor
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, NATE/ICE Gas Furnace Exam Questions & Answers Latest Update
* Heat
too much primary air can cause the flame to _____ _____ the burner - ✔✔✔ - lift off
Inshot burners should produce a hard, loud flame that is light _____ in color and has a little or no
_____ tips - ✔✔✔ - * Blue
* Yellow
Earlier burners were made of cast iron; today they are made of _____ - ✔✔✔ - Sheet metal
Individual burners must be mounted in correct alignment to ensure adequate _____. - ✔✔✔ - carry-
over
yellow tips mean - ✔✔✔ - incomplete combustion
_____ _____ ignition systems are on the entire time the burner is firing - ✔✔✔ - intermittent duty
interrupted duty ignition systems are energized _____ the main burner is stable and then de-energized
- ✔✔✔ - until
how far should the thermocouple go into the flame? - ✔✔✔ - 5/8 to 1/2
if a system is undersized, it will result in? - ✔✔✔ - long run time during the heating season and the lack
of temperature control
if a system is oversized, it will result in? - ✔✔✔ - short cycling curing the heating season
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NATE/ICE Gas Furnace Exam Questions &
Answers Latest Update.
What type of furnace needs a combustible floor base? - ✔✔✔ - A downflow furnace
What is the combustible floor base made out of? - ✔✔✔ - Fiberglass
Closet installation require close attention to be paid to _____ transmission - ✔✔✔ - noise
On a call for heat the circuit board will look for? - ✔✔✔ - Closed thermal switches:
* High limit control
* Flame roll-out
* Secondary limits
* Open pressure switch
The inducer will be energized for the _____ perious - ✔✔✔ - pre-purge
The pressure switch will close proving the _____ operation - ✔✔✔ - inducer
the gas valve will open for a trial period of _____ to _____ seconds - ✔✔✔ - 5 to 7
A flame failure during a call for heat will be detected within _____ seconds - ✔✔✔ - 0.8
products of combustion include - ✔✔✔ - * Carbon dioxide
* Nitrogen
* Water vapor
©®™ Page 1
, NATE/ICE Gas Furnace Exam Questions & Answers Latest Update
* Heat
too much primary air can cause the flame to _____ _____ the burner - ✔✔✔ - lift off
Inshot burners should produce a hard, loud flame that is light _____ in color and has a little or no
_____ tips - ✔✔✔ - * Blue
* Yellow
Earlier burners were made of cast iron; today they are made of _____ - ✔✔✔ - Sheet metal
Individual burners must be mounted in correct alignment to ensure adequate _____. - ✔✔✔ - carry-
over
yellow tips mean - ✔✔✔ - incomplete combustion
_____ _____ ignition systems are on the entire time the burner is firing - ✔✔✔ - intermittent duty
interrupted duty ignition systems are energized _____ the main burner is stable and then de-energized
- ✔✔✔ - until
how far should the thermocouple go into the flame? - ✔✔✔ - 5/8 to 1/2
if a system is undersized, it will result in? - ✔✔✔ - long run time during the heating season and the lack
of temperature control
if a system is oversized, it will result in? - ✔✔✔ - short cycling curing the heating season
©®™ Page 2
