NATE GAS HEATING FINAL EXAM 2026 (QUESTIONS ANSWERS) WITH STUDY GUIDE EXPERT VERIFIED FOR GUARANTEED PASS

NATE GAS HEATING FINAL EXAM

2026(
QUESTIONS& ANSWERS)WITHSTUDY

GUIDE EXPERT VERIFIEDFORGUARANTEED

PASS||ALREADY GRADED A+




Whattypeof furnace
moveswarmair throughthe conditioned

space without a fan?

a. Gravity

b. Horizontal

c. Lowboy

d. Upflow- ANSWER-a (Gravity)




FurnacANSWER heat exchangers generally are made
. of


mmm

, a. cerami
c
b. coppe
r
c. plasti
c
d. stee- ANSWER
-d (stee)
l l
In a modern gas furnace, the component that separates the

combustion gases from the supply air is the .

a. ga valv
s e
b. heaexchange
t r
c. inducer
fa
n
d. plenum
box- ANSWER
-b (heaexchanger
t )




mmm

, WhatdoesAFUE standfor?

a. ActualFuel UsageEfficiency

b. AnnualFuel UtilizationEfficiency

c. AnnualFurnaceUsageEquivalency

d. Approved
FuelUsageEstimate
- ANSWER-b (Annual

Fuel Utilization Efficiency)




The mainpurpose
of a secondary
heatexchanger
is to

.

a. evaporate
thefluegase
s
b. providea backup
containment

c. remove
additional
heatfromthefluegase
s
d. reverse
theprimaryairflow- ANSWER-c (remove

additional heat from the flue gases)

mmm

, Whichgascommonly
useda a fuelin gasfurnaces
is heavier
s
than air?

a. butane

b. isobutene

c. methane

d. propane
- ANSWER-d (propane
)




Whichgradeof fueloil is mostcommonly
usedin residential

furnaces?

a. 1

b. 2

c. 3

d. 4 - ANSWER-b (2)

mmm