HVAC CONTRACTOR EXAM NEWEST 2026/2027 QUESTIONS
and CORRECT DETAILED ANSWERS ALREADY GRADED A+
when performing a nitrogen pressure test on a refrigerant piping system in a unit
over 20 tons, how long should the test remain on?
a. 6 hours
b. 12 hours
c. 1 hour
d. 24 hours - CORRECT ANSWER-24 hours
in general soldering alloys melt under what temperature
a. 1250 degrees f
b. 112 degrees f
c. 800 degrees f
d. 500 degrees f - CORRECT ANSWER-800 degrees f
,in section 440-x-3-09 in the statute the certified contractor holding a certification
with the board of heating, air conditioning and refrigeration contractors is
deemed "responsible in charge" would hold what position in the company?
a. corporate officer or partner
b. regularly employed person
c. member of the llc
d. any of the above - CORRECT ANSWER-any of the above
according to the environmental protection agency releasing refrigerants int the
atmosphere can cause damage to the earth's what
a. stratosphere
b. foundation
c. ozone
d. sky - CORRECT ANSWER-ozone
appliances in compartments shall be accessed by an opening or door and
unobstructed passageway not less than ___ wide
,a. 24"
b. 36"
c. 12"
d. 48" - CORRECT ANSWER-24"
the boiling temperature of refrigerants rise as:
a. the latent heat drops
b. the pressure is decreased
c. the pressure is increased
d. the wet bulb is reduced - CORRECT ANSWER-the pressure is increased
refer to house 1 drawing and calculate the net heat gain on the north wall. the
net heat gain is most nearly?
a. 245 btuh
b. 701 btuh
c. 622 btuh
d. 356 btuh - CORRECT ANSWER-245 btuh
, refer to house 1 drawing. the net heat gain through the west glazing on this house
is? select the closest answer
a. 2760 btuh
b. 1920 btuh
c. 2134 btuh
d. 1254 btuh - CORRECT ANSWER-2760 btuh
refer to house 1 drawing calculate the net heat loss through the ceiling in
bedroom 2... the net heat loss is?
a. 546 btuh
b. 170 btuh
c. 214 btuh
d. 345 btuh - CORRECT ANSWER-170 btuh
on a natural draft furnace which of the following parts are not found
a. blower motor
and CORRECT DETAILED ANSWERS ALREADY GRADED A+
when performing a nitrogen pressure test on a refrigerant piping system in a unit
over 20 tons, how long should the test remain on?
a. 6 hours
b. 12 hours
c. 1 hour
d. 24 hours - CORRECT ANSWER-24 hours
in general soldering alloys melt under what temperature
a. 1250 degrees f
b. 112 degrees f
c. 800 degrees f
d. 500 degrees f - CORRECT ANSWER-800 degrees f
,in section 440-x-3-09 in the statute the certified contractor holding a certification
with the board of heating, air conditioning and refrigeration contractors is
deemed "responsible in charge" would hold what position in the company?
a. corporate officer or partner
b. regularly employed person
c. member of the llc
d. any of the above - CORRECT ANSWER-any of the above
according to the environmental protection agency releasing refrigerants int the
atmosphere can cause damage to the earth's what
a. stratosphere
b. foundation
c. ozone
d. sky - CORRECT ANSWER-ozone
appliances in compartments shall be accessed by an opening or door and
unobstructed passageway not less than ___ wide
,a. 24"
b. 36"
c. 12"
d. 48" - CORRECT ANSWER-24"
the boiling temperature of refrigerants rise as:
a. the latent heat drops
b. the pressure is decreased
c. the pressure is increased
d. the wet bulb is reduced - CORRECT ANSWER-the pressure is increased
refer to house 1 drawing and calculate the net heat gain on the north wall. the
net heat gain is most nearly?
a. 245 btuh
b. 701 btuh
c. 622 btuh
d. 356 btuh - CORRECT ANSWER-245 btuh
, refer to house 1 drawing. the net heat gain through the west glazing on this house
is? select the closest answer
a. 2760 btuh
b. 1920 btuh
c. 2134 btuh
d. 1254 btuh - CORRECT ANSWER-2760 btuh
refer to house 1 drawing calculate the net heat loss through the ceiling in
bedroom 2... the net heat loss is?
a. 546 btuh
b. 170 btuh
c. 214 btuh
d. 345 btuh - CORRECT ANSWER-170 btuh
on a natural draft furnace which of the following parts are not found
a. blower motor
