HVAC Practice Test (Latest Update 2026 /
2027) Questions & Answers {Grade A}
100% Correct
Pressure is usually measured in ___________.
a. Pounds per square foot
b. Pressure per square foot
c. Pounds per square inch
d. Pressure per square inch - correct answer c. Pounds per square inch
True or False: Atmospheric pressure, at sea level, is 14.7 psia. - correct answer True
When one rises into the atmosphere, the atmospheric pressure decreases by 1 psi for
every_________________.
a. 2,343 feet
, b. 3,334 feet
c. 2,500 feet
d. 5,280 feet - correct answer a. 2,343 feet
Every mechanical refrigeration system has __________ different pressure levels.
a. 2
b. 3
c. 4
d. 5 - correct answer a. 2
Vaporization can be increased by _____________ the pressure on a liquid.
a. Increasing
b. Equalizing
c. Reducing - correct answer c. Reducing
2027) Questions & Answers {Grade A}
100% Correct
Pressure is usually measured in ___________.
a. Pounds per square foot
b. Pressure per square foot
c. Pounds per square inch
d. Pressure per square inch - correct answer c. Pounds per square inch
True or False: Atmospheric pressure, at sea level, is 14.7 psia. - correct answer True
When one rises into the atmosphere, the atmospheric pressure decreases by 1 psi for
every_________________.
a. 2,343 feet
, b. 3,334 feet
c. 2,500 feet
d. 5,280 feet - correct answer a. 2,343 feet
Every mechanical refrigeration system has __________ different pressure levels.
a. 2
b. 3
c. 4
d. 5 - correct answer a. 2
Vaporization can be increased by _____________ the pressure on a liquid.
a. Increasing
b. Equalizing
c. Reducing - correct answer c. Reducing
