OCILB – HYDRONICS CONTRACTOR EXAM– QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Licensing Authority & Regulatory Framework (OCILB, ORC Chapter 4740)
Boiler Types, Operation, Efficiency & Safety Devices
Circulator Pumps, Zone Control & System Balancing
Piping Materials, Sizing, Installation & Backflow Prevention
Pressure & Temperature Management (Expansion Tanks, Air Removal)
Radiant Floor Heating Systems & Low-Temperature Applications
Heat Transfer Principles, Thermodynamics & System Design
Code Compliance (Ohio Mechanical Code, ASME, NFPA)
Business Practices, Ethics & Job-Site Safety
Introduction
The Ohio Construction Industry Licensing Board Hydronics Contractor Examination assesses the knowledge and
competency required to perform commercial hydronic heating and cooling work in the State of Ohio. Candidates must
demonstrate mastery of system design principles, boiler and piping installation, code compliance, and safe work
,practices. The exam employs multiple-choice and scenario-based questions to evaluate both theoretical understanding
and practical decision-making. Emphasis is placed on real-world application, including troubleshooting system failures,
interpreting code requirements, and exercising professional judgment in compliance and ethical matters. This
assessment ensures licensed contractors possess the skills necessary to protect public safety and deliver quality hydronic
installations.
SECTION ONE: QUESTIONS 1–50
Question 1
Which Ohio agency is responsible for licensing hydronics contractors?
A. Ohio Department of Commerce – Division of Industrial Compliance
B. Ohio Board of Building Standards
C. Ohio Construction Industry Licensing Board (OCILB)
D. Ohio Environmental Protection Agency
🟢 Correct Answer: C. Ohio Construction Industry Licensing Board (OCILB)
🔴 Explanation: The OCILB, operating under the Ohio Department of Commerce, is the governing body responsible
for licensing hydronics contractors under Ohio Revised Code Chapter 4740.
,Question 2
What is the minimum liability insurance required for an OCILB hydronics contractor license?
A. $250,000
B. $500,000
C. $750,000
D. $1,000,000
🟢 Correct Answer: B. $500,000
🔴 Explanation: Ohio requires hydronics contractors to maintain at least $500,000 in contractor liability insurance to
obtain and maintain a state license.
Question 3
A hydronics contractor license in Ohio can be renewed on which of the following term options?
A. 6-month or 12-month terms
B. 1-year or 3-year terms
, C. 2-year or 4-year terms
D. 5-year terms only
🟢 Correct Answer: B. 1-year or 3-year terms
🔴 Explanation: The OCILB offers licensees the option of either a one-year license or a three-year license renewal
term.
Question 4
How many hours of approved continuing education are required for renewal of a 1-year hydronics contractor
license?
A. 4 hours
B. 6 hours
C. 8 hours
D. 12 hours
🟢 Correct Answer: C. 8 hours
ANSWERS | PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Licensing Authority & Regulatory Framework (OCILB, ORC Chapter 4740)
Boiler Types, Operation, Efficiency & Safety Devices
Circulator Pumps, Zone Control & System Balancing
Piping Materials, Sizing, Installation & Backflow Prevention
Pressure & Temperature Management (Expansion Tanks, Air Removal)
Radiant Floor Heating Systems & Low-Temperature Applications
Heat Transfer Principles, Thermodynamics & System Design
Code Compliance (Ohio Mechanical Code, ASME, NFPA)
Business Practices, Ethics & Job-Site Safety
Introduction
The Ohio Construction Industry Licensing Board Hydronics Contractor Examination assesses the knowledge and
competency required to perform commercial hydronic heating and cooling work in the State of Ohio. Candidates must
demonstrate mastery of system design principles, boiler and piping installation, code compliance, and safe work
,practices. The exam employs multiple-choice and scenario-based questions to evaluate both theoretical understanding
and practical decision-making. Emphasis is placed on real-world application, including troubleshooting system failures,
interpreting code requirements, and exercising professional judgment in compliance and ethical matters. This
assessment ensures licensed contractors possess the skills necessary to protect public safety and deliver quality hydronic
installations.
SECTION ONE: QUESTIONS 1–50
Question 1
Which Ohio agency is responsible for licensing hydronics contractors?
A. Ohio Department of Commerce – Division of Industrial Compliance
B. Ohio Board of Building Standards
C. Ohio Construction Industry Licensing Board (OCILB)
D. Ohio Environmental Protection Agency
🟢 Correct Answer: C. Ohio Construction Industry Licensing Board (OCILB)
🔴 Explanation: The OCILB, operating under the Ohio Department of Commerce, is the governing body responsible
for licensing hydronics contractors under Ohio Revised Code Chapter 4740.
,Question 2
What is the minimum liability insurance required for an OCILB hydronics contractor license?
A. $250,000
B. $500,000
C. $750,000
D. $1,000,000
🟢 Correct Answer: B. $500,000
🔴 Explanation: Ohio requires hydronics contractors to maintain at least $500,000 in contractor liability insurance to
obtain and maintain a state license.
Question 3
A hydronics contractor license in Ohio can be renewed on which of the following term options?
A. 6-month or 12-month terms
B. 1-year or 3-year terms
, C. 2-year or 4-year terms
D. 5-year terms only
🟢 Correct Answer: B. 1-year or 3-year terms
🔴 Explanation: The OCILB offers licensees the option of either a one-year license or a three-year license renewal
term.
Question 4
How many hours of approved continuing education are required for renewal of a 1-year hydronics contractor
license?
A. 4 hours
B. 6 hours
C. 8 hours
D. 12 hours
🟢 Correct Answer: C. 8 hours
