Kentucky Boiler Contractor Exam Test Bank 2026/2027 | 200 Q&As with
Rationales | KRS 236, 815 KAR 15, ASME Sec I & IV, NBIC, NFPA 54/85/KY
Boiler Contractor License Exam Practice Test 2026/2027 | Full 200-
Question Exam Prep & Study Guide
Full Exam Overview
Question
Section Key Topics Covered
Range
Batch KRS 236, 815 KAR 15, State Permitting, "R" & "V-R"
Q1–50
1 Stamps, Inspection Intervals
Batch ASME Section I & IV, NBIC Repairs, Welder Qualification
Q51–100
2 (Section IX), Safety Valves
Batch Boiler Room Design, Clearances, Combustion Air, NFPA
Q101–150
3 85/54, Traps & Controls
Batch Electrical (NEC/NFPA 70), Feed Pumps, Refractory,
Q151–200
4 Chemical Boil-out, Safety Laws
1. Which Kentucky state administrative body has direct statutory authority over the
licensing of boiler contractors and the enforcement of boiler and pressure vessel
safety?
, o A) Kentucky Department of Housing, Buildings and Construction
(DHBC) ✔
o B) Kentucky Department of Environmental Protection
o C) Kentucky Public Service Commission
o D) Kentucky Labor Cabinet
2. Under KRS Chapter 236, a Power Boiler is defined as a boiler in which steam or
other vapor is generated at a pressure exceeding:
o A) 5 psig
o B) 15 psig ✔
o C) 30 psig
o D) 100 psig
3. According to 815 KAR Chapter 15, a high-temperature or high-pressure water boiler
is defined as a water boiler operating at pressures exceeding 160 psig or
temperatures exceeding:
o A) 180°F
o B) 200°F
o C) 250°F ✔
o D) 300°F
4. Under Kentucky law, what is the maximum allowable working pressure (MAWP) for a
standard cast-iron steam heating boiler?
o A) 10 psig
o B) 15 psig ✔
o C) 30 psig
o D) 60 psig
5. Under 815 KAR 15:026, what is the maximum water pressure allowed for a low-
pressure cast-iron hot water heating boiler?
, o A) 30 psig
o B) 45 psig
o C) 60 psig ✔
o D) 100 psig
6. A domestic hot water supply boiler is classified under Kentucky boiler regulations
when the heat input exceeds how many BTUs per hour?
o A) 100,000 BTU/hr
o B) 200,000 BTU/hr ✔
o C) 300,000 BTU/hr
o D) 500,000 BTU/hr
7. In Kentucky, an installation permit must be obtained from the Department of
Housing, Buildings and Construction prior to installing or performing major repairs
on:
o A) Boilers only
o B) Pressure vessels only
o C) Pressure piping only
o D) Boilers, pressure vessels, or pressure piping ✔
8. What National Board Certificate of Authorization stamp must a licensed contractor
hold to perform welded repairs or alterations on pressure-retaining parts of a boiler
or pressure vessel?
o A) "S" Stamp
o B) "R" Stamp ✔
o C) "V" Stamp
o D) "U" Stamp
9. What National Board Stamp is specifically required for a contractor or repair
organization performing welded repairs or reconditioning on pressure relief valves?
, o A) "R" Stamp
o B) "V-R" Stamp ✔
o C) "PP" Stamp
o D) "A" Stamp
10. According to Kentucky administrative regulations, if a licensed boiler contractor
surrenders or loses their designated license holder, within how many days must a
new qualifying individual be designated?
o A) 15 days
o B) 30 days
o C) 60 days ✔
o D) 90 days
11. Under KRS 236.990, any person who willfully violates any provision of Kentucky
boiler safety laws or administrative regulations is subject to a fine per day up to:
o A) $100
o B) $250
o C) $500 (and up to 30 days in jail) ✔
o D) $1,000
12. Under 815 KAR Chapter 15, power boilers in continuous operation are subject to an
official certificate inspection at intervals not exceeding:
o A) 6 months
o B) 14 months (typically annual with grace period) ✔
o C) 24 months
o D) 36 months
13. How frequently must unfired pressure vessels operating above 200 psi undergo
periodic inspections under Kentucky administrative rules?
o A) Every 1 year
Rationales | KRS 236, 815 KAR 15, ASME Sec I & IV, NBIC, NFPA 54/85/KY
Boiler Contractor License Exam Practice Test 2026/2027 | Full 200-
Question Exam Prep & Study Guide
Full Exam Overview
Question
Section Key Topics Covered
Range
Batch KRS 236, 815 KAR 15, State Permitting, "R" & "V-R"
Q1–50
1 Stamps, Inspection Intervals
Batch ASME Section I & IV, NBIC Repairs, Welder Qualification
Q51–100
2 (Section IX), Safety Valves
Batch Boiler Room Design, Clearances, Combustion Air, NFPA
Q101–150
3 85/54, Traps & Controls
Batch Electrical (NEC/NFPA 70), Feed Pumps, Refractory,
Q151–200
4 Chemical Boil-out, Safety Laws
1. Which Kentucky state administrative body has direct statutory authority over the
licensing of boiler contractors and the enforcement of boiler and pressure vessel
safety?
, o A) Kentucky Department of Housing, Buildings and Construction
(DHBC) ✔
o B) Kentucky Department of Environmental Protection
o C) Kentucky Public Service Commission
o D) Kentucky Labor Cabinet
2. Under KRS Chapter 236, a Power Boiler is defined as a boiler in which steam or
other vapor is generated at a pressure exceeding:
o A) 5 psig
o B) 15 psig ✔
o C) 30 psig
o D) 100 psig
3. According to 815 KAR Chapter 15, a high-temperature or high-pressure water boiler
is defined as a water boiler operating at pressures exceeding 160 psig or
temperatures exceeding:
o A) 180°F
o B) 200°F
o C) 250°F ✔
o D) 300°F
4. Under Kentucky law, what is the maximum allowable working pressure (MAWP) for a
standard cast-iron steam heating boiler?
o A) 10 psig
o B) 15 psig ✔
o C) 30 psig
o D) 60 psig
5. Under 815 KAR 15:026, what is the maximum water pressure allowed for a low-
pressure cast-iron hot water heating boiler?
, o A) 30 psig
o B) 45 psig
o C) 60 psig ✔
o D) 100 psig
6. A domestic hot water supply boiler is classified under Kentucky boiler regulations
when the heat input exceeds how many BTUs per hour?
o A) 100,000 BTU/hr
o B) 200,000 BTU/hr ✔
o C) 300,000 BTU/hr
o D) 500,000 BTU/hr
7. In Kentucky, an installation permit must be obtained from the Department of
Housing, Buildings and Construction prior to installing or performing major repairs
on:
o A) Boilers only
o B) Pressure vessels only
o C) Pressure piping only
o D) Boilers, pressure vessels, or pressure piping ✔
8. What National Board Certificate of Authorization stamp must a licensed contractor
hold to perform welded repairs or alterations on pressure-retaining parts of a boiler
or pressure vessel?
o A) "S" Stamp
o B) "R" Stamp ✔
o C) "V" Stamp
o D) "U" Stamp
9. What National Board Stamp is specifically required for a contractor or repair
organization performing welded repairs or reconditioning on pressure relief valves?
, o A) "R" Stamp
o B) "V-R" Stamp ✔
o C) "PP" Stamp
o D) "A" Stamp
10. According to Kentucky administrative regulations, if a licensed boiler contractor
surrenders or loses their designated license holder, within how many days must a
new qualifying individual be designated?
o A) 15 days
o B) 30 days
o C) 60 days ✔
o D) 90 days
11. Under KRS 236.990, any person who willfully violates any provision of Kentucky
boiler safety laws or administrative regulations is subject to a fine per day up to:
o A) $100
o B) $250
o C) $500 (and up to 30 days in jail) ✔
o D) $1,000
12. Under 815 KAR Chapter 15, power boilers in continuous operation are subject to an
official certificate inspection at intervals not exceeding:
o A) 6 months
o B) 14 months (typically annual with grace period) ✔
o C) 24 months
o D) 36 months
13. How frequently must unfired pressure vessels operating above 200 psi undergo
periodic inspections under Kentucky administrative rules?
o A) Every 1 year
