HVAC EXCELLENCE TEST EXAM 2025/2026 ACTUAL
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ / NEWEST EXAM / JUST RELEASED!!
A drain trap should be installed on a split system when the
- ANSWER-Air
handler drain is on the
negative side
A customer complains that their AC system is runningt
constantly, but no
cooling enough. The suction line is very colde and the
compressor is sweating.
Mostlikely cause is - ANSWER-a restriction of the return air or
dirty evaporator
What is the generally accepted range for evaporator air flow in
CFMs per ton of
residential air conditioning? - ANSWER-
350 to 450
Split system with Compressor change out, unit is not cooling.
Evaporator seems
starved, liquid line is sweating leaving the drier, mostlikely -
ANSWER-Debris
from the burned out compressor has clogged
the filter drier
,The temperature rise method for determining air flow is -
ANSWER-CFM=BTU /
(1.08 x Delta
T)
What is the recomended residential indoor relative
humidity for summer? -
ANSWER-
50%
An inefficient compressor is usually indicated by ___
headpressure and ___
suction pressure - ANSWER-Lower than normal/
higher than normal
Which is NOT a symptom of a hermetic system that is low
on refrigerant -
ANSWER-High head
pressure
Frost on the suction line indicates - ANSWER-That the temp. is
below the dew
point and below 32
degrees F.
an increase in head pressure causes __ refrigerant to flow
through a capillary
tube - ANSWER-
More
, With an automatic expansion valve, an increase in evaporator
load will cause
the - ANSWER-Automatic expansion
valve to open
When a TEV or a capillary tube is used as a metering device a
low refrigerant
charge will cause - ANSWER-low head
pressure
what is the maximum operating pressure setting for an
acetylene torch? -
ANSWER-15
psig
when connecting copper to steel, the recommended brazing
filler alloy is a -
ANSWER-45 % silver
alloy
Solid contaminants, such as sludge and carbon, from a severe
hermetic compressor motor bur out are best removed: -
ANSWER-by flushing the system and then installing filter/
driers in both the liquid and suction lines
If the cut-off plate is removed from a blower assembly, how
would this effect
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ / NEWEST EXAM / JUST RELEASED!!
A drain trap should be installed on a split system when the
- ANSWER-Air
handler drain is on the
negative side
A customer complains that their AC system is runningt
constantly, but no
cooling enough. The suction line is very colde and the
compressor is sweating.
Mostlikely cause is - ANSWER-a restriction of the return air or
dirty evaporator
What is the generally accepted range for evaporator air flow in
CFMs per ton of
residential air conditioning? - ANSWER-
350 to 450
Split system with Compressor change out, unit is not cooling.
Evaporator seems
starved, liquid line is sweating leaving the drier, mostlikely -
ANSWER-Debris
from the burned out compressor has clogged
the filter drier
,The temperature rise method for determining air flow is -
ANSWER-CFM=BTU /
(1.08 x Delta
T)
What is the recomended residential indoor relative
humidity for summer? -
ANSWER-
50%
An inefficient compressor is usually indicated by ___
headpressure and ___
suction pressure - ANSWER-Lower than normal/
higher than normal
Which is NOT a symptom of a hermetic system that is low
on refrigerant -
ANSWER-High head
pressure
Frost on the suction line indicates - ANSWER-That the temp. is
below the dew
point and below 32
degrees F.
an increase in head pressure causes __ refrigerant to flow
through a capillary
tube - ANSWER-
More
, With an automatic expansion valve, an increase in evaporator
load will cause
the - ANSWER-Automatic expansion
valve to open
When a TEV or a capillary tube is used as a metering device a
low refrigerant
charge will cause - ANSWER-low head
pressure
what is the maximum operating pressure setting for an
acetylene torch? -
ANSWER-15
psig
when connecting copper to steel, the recommended brazing
filler alloy is a -
ANSWER-45 % silver
alloy
Solid contaminants, such as sludge and carbon, from a severe
hermetic compressor motor bur out are best removed: -
ANSWER-by flushing the system and then installing filter/
driers in both the liquid and suction lines
If the cut-off plate is removed from a blower assembly, how
would this effect
