KENTUCKY DEPARTMENT OF HOUSING, BUILDINGS AND CONSTRUCTION
KENTUCKY BOILER CONTRACTOR CERTIFICATION STUDY
MATERIALS & 350-QUESTION PRACTICE MOCK EXAM
COMPLETE STUDY GUIDE, COMPREHENSIVE PRACTICE EXAMS
& TECHNICAL CODE RATIONALES
Based on ASME Boiler and Pressure Vessel Code (BPVC Sections I, IV, VIII, IX), National
Board Inspection Code (NBIC), and Kentucky Revised Statutes (KRS 236) / 815 KAR 6
――――――――――――――――――――――――――――――――――――――――
―――――――――――――――
Credential Target: Kentucky Boiler Contractor & Installer Certification
Governing Authority: Kentucky Board of Boiler Rules & Division of Plumbing /
Boiler Section
Reference Standards: ASME BPVC Sec I, IV, VIII, IX; NBIC NB-23; KRS Chapter
236; 815 KAR 6
Total Mock Exam Volume: 350 Multiple-Choice Questions with Complete Technical
Explanations
■ KENTUCKY BOILER CERTIFICATION EXAM PREPARATION
This comprehensive study guide and 350-question practice examination package is
engineered specifically for individuals preparing for the Kentucky Boiler Contractor
Certification. It covers administrative regulations (KRS KAR 6), ASME design
codes, installation requirements, safety valve sizing, combustion controls, piping,
welding qualifications, and National Board inspection standards.
,Question 1: According to Kentucky Revised Statutes KRS Chapter 236, who is responsible
for ensuring that all boilers operated within the Commonwealth are inspected and possess a
valid operating certificate?
(A) The manufacturer
(B) The user or owner
(C) The insurance inspector only
(D) The municipal police department
Correct Answer: (B)
Code Rationale: KRS Chapter 236 mandates that the owner or user of a boiler
operated within Kentucky is legally responsible for obtaining and maintaining valid
operating certificates and required inspections.
Question 2: Under ASME Section IV, what is the maximum allowable working pressure
(MAWP) for steam heating boilers?
(A) 15 psi
(B) 100 psi
(C) 160 psi
(D) 250 psi
Correct Answer: (A)
Code Rationale: ASME Section IV governs low-pressure heating boilers, establishing a
maximum steam MAWP of 15 psi and water heating boilers up to 160 psi at 250°F.
Question 3: When performing welding repairs on an ASME code-stamped pressure vessel
in Kentucky, what certification must the repair organization hold?
(A) Local contractor license only
(B) National Board 'R' Stamp accreditation
(C) ASME 'S' Stamp only
(D) OSHA general safety card
Correct Answer: (B)
Code Rationale: National Board Inspection Code (NBIC) and Kentucky regulations
require that any welding repair or alteration on code-stamped boilers be executed by a
holder of a valid National Board 'R' Certificate of Authorization.
,Question 4: What is the primary function of a low-water fuel cutoff (LWFO) on a steam
heating boiler?
(A) To regulate boiler steam pressure
(B) To shut off burner fuel supply when water level drops below safe operating limits
(C) To control feedwater pump speed
(D) To blow down sediment from the bottom of the boiler
Correct Answer: (B)
Code Rationale: ASME Section IV requires low-water fuel cutoffs to automatically cut
off the fuel supply before the water level falls below the lowest visible part of the water
glass to prevent dry firing and catastrophic thermal shock.
Question 5: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 6: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
, strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 7: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 8: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
KENTUCKY BOILER CONTRACTOR CERTIFICATION STUDY
MATERIALS & 350-QUESTION PRACTICE MOCK EXAM
COMPLETE STUDY GUIDE, COMPREHENSIVE PRACTICE EXAMS
& TECHNICAL CODE RATIONALES
Based on ASME Boiler and Pressure Vessel Code (BPVC Sections I, IV, VIII, IX), National
Board Inspection Code (NBIC), and Kentucky Revised Statutes (KRS 236) / 815 KAR 6
――――――――――――――――――――――――――――――――――――――――
―――――――――――――――
Credential Target: Kentucky Boiler Contractor & Installer Certification
Governing Authority: Kentucky Board of Boiler Rules & Division of Plumbing /
Boiler Section
Reference Standards: ASME BPVC Sec I, IV, VIII, IX; NBIC NB-23; KRS Chapter
236; 815 KAR 6
Total Mock Exam Volume: 350 Multiple-Choice Questions with Complete Technical
Explanations
■ KENTUCKY BOILER CERTIFICATION EXAM PREPARATION
This comprehensive study guide and 350-question practice examination package is
engineered specifically for individuals preparing for the Kentucky Boiler Contractor
Certification. It covers administrative regulations (KRS KAR 6), ASME design
codes, installation requirements, safety valve sizing, combustion controls, piping,
welding qualifications, and National Board inspection standards.
,Question 1: According to Kentucky Revised Statutes KRS Chapter 236, who is responsible
for ensuring that all boilers operated within the Commonwealth are inspected and possess a
valid operating certificate?
(A) The manufacturer
(B) The user or owner
(C) The insurance inspector only
(D) The municipal police department
Correct Answer: (B)
Code Rationale: KRS Chapter 236 mandates that the owner or user of a boiler
operated within Kentucky is legally responsible for obtaining and maintaining valid
operating certificates and required inspections.
Question 2: Under ASME Section IV, what is the maximum allowable working pressure
(MAWP) for steam heating boilers?
(A) 15 psi
(B) 100 psi
(C) 160 psi
(D) 250 psi
Correct Answer: (A)
Code Rationale: ASME Section IV governs low-pressure heating boilers, establishing a
maximum steam MAWP of 15 psi and water heating boilers up to 160 psi at 250°F.
Question 3: When performing welding repairs on an ASME code-stamped pressure vessel
in Kentucky, what certification must the repair organization hold?
(A) Local contractor license only
(B) National Board 'R' Stamp accreditation
(C) ASME 'S' Stamp only
(D) OSHA general safety card
Correct Answer: (B)
Code Rationale: National Board Inspection Code (NBIC) and Kentucky regulations
require that any welding repair or alteration on code-stamped boilers be executed by a
holder of a valid National Board 'R' Certificate of Authorization.
,Question 4: What is the primary function of a low-water fuel cutoff (LWFO) on a steam
heating boiler?
(A) To regulate boiler steam pressure
(B) To shut off burner fuel supply when water level drops below safe operating limits
(C) To control feedwater pump speed
(D) To blow down sediment from the bottom of the boiler
Correct Answer: (B)
Code Rationale: ASME Section IV requires low-water fuel cutoffs to automatically cut
off the fuel supply before the water level falls below the lowest visible part of the water
glass to prevent dry firing and catastrophic thermal shock.
Question 5: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 6: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
, strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 7: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
Question 8: In accordance with Kentucky boiler certification standards and kentucky
administrative regulations, krs chapter 236 & 815 kar 6, which of the following practices is
strictly required for code compliance and safe operation?
(A) Strict adherence to all statutory requirements, engineering standards, and inspection
protocols applicable to kentucky administrative regulations, krs chapter 236 & 815 kar 6.
(B) Operating all boilers at double their rated MAWP without prior inspection approval.
(C) Omitting safety relief valves on closed hot water heating systems.
(D) Employing uncertified welders for pressure boundary repairs.
Correct Answer: (A)
Code Rationale: Kentucky boiler laws, ASME BPVC, and NBIC guidelines mandate
strict compliance with professional installation, certification, and maintenance protocols
for all aspects of kentucky administrative regulations, krs chapter 236 & 815 kar 6.
