Alabama Heating and Air Conditioning Contractor Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Guaranteed Pass (GRADED A+)

Alabama Heating and Air
Conditioning Contractor Exam
Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Guaranteed
Pass (GRADED A+)

1. Which Alabama state agency administers the HVAC contractor
licensing examination and issues heating, air conditioning, and
refrigeration licenses?

 A. Alabama Department of Labor
 B. Alabama Board of Heating, Air Conditioning & Refrigeration Contractors
(HACR)
 C. Alabama Building Commission
 D. Alabama Department of Environmental Management

Correct Answer: B – The Alabama Board of Heating, Air Conditioning &
Refrigeration Contractors (HACR) is the state agency responsible for
administering HVAC licensing exams and issuing contractor certifications .

2. What is the primary purpose of a refrigerant compressor in an HVAC
system?

 A. To remove moisture from the refrigerant
 B. To circulate refrigerant and increase its pressure
 C. To filter contaminants from the refrigerant line
 D. To convert liquid refrigerant to vapor

, Correct Answer: B – The compressor's fundamental role is to pump
refrigerant through the system while raising its pressure and temperature,
enabling heat rejection in the condenser .

3. Which refrigerant is commonly used in modern residential air
conditioning systems?

 A. R-22
 B. R-410A
 C. Ammonia
 D. Carbon dioxide

Correct Answer: B – R-410A is widely used in modern systems because it is
more environmentally friendly than older refrigerants like R-22 .

4. What is the primary function of the evaporator coil in a
vapor-compression refrigeration system?

 A. To compress refrigerant gas
 B. To condense refrigerant from vapor to liquid
 C. To absorb heat from the conditioned space
 D. To regulate system pressure

Correct Answer: C – The evaporator coil allows low-pressure liquid
refrigerant to evaporate, absorbing heat from the surrounding air and
providing cooling .

5. What is the minimum passing score for the Alabama HVAC
Contractor examination?

 A. 65%
 B. 70%
 C. 75%
 D. 80%

Correct Answer: B – The minimum passing score for the Alabama HVAC
Contractor examination is 70% .

, 6. How many questions are on the Alabama HVAC Contractor
examination?

 A. 60 questions
 B. 70 questions
 C. 80 questions
 D. 100 questions

Correct Answer: C – The Alabama HVAC Contractor examination consists
of 80 questions .

7. What is the purpose of a thermostat?

 A. To circulate refrigerant
 B. To regulate temperature by controlling system operation
 C. To measure humidity only
 D. To filter air contaminants

Correct Answer: B – A thermostat senses temperature and signals the
HVAC system to turn on or off .

8. What is the required performance bond amount for an active
Alabama HVAC contractor certification?

 A. $10,000
 B. $15,000
 C. $20,000
 D. $25,000

Correct Answer: B – Alabama requires a performance bond of $15,000 for
active HVAC contractor certification

9. What is the minimum age requirement to apply for an Alabama
HVAC contractor license?

 A. 16 years old

,  B. 18 years old
 C. 21 years old
 D. 25 years old

Correct Answer: B – Applicants must be at least 18 years old to apply for
an Alabama HVAC contractor license. In addition to the age requirement,
applicants must have a high school diploma or GED and meet one of the
experience pathways.

10. How many hours are allotted to complete the Alabama HVAC
Contractor examination?

 A. 2 hours
 B. 3 hours
 C. 4 hours
 D. 5 hours

Correct Answer: C – Candidates are given 4 hours to complete the 80-
question exam.

11. What is the examination fee for the Alabama HVAC Contractor
exam?

 A. $100
 B. $125
 C. $150
 D. $175

Correct Answer: D – The Alabama HVAC Contractor examination fee is
$175. This fee is paid when scheduling the exam through the testing
provider authorized by the HACR Board.