Prepare for the Chicago Illinois 301 Stationary Engineer Licensure Examination with a focused five-book package covering low-pressure boilers, high-pressure boilers, steam plant operation, boiler controls, combustion, water and steam properties, boiler maintenance, equipment safety, and recognized ASME guidance for heating and power boilers.
The City of Chicago requires a stationary engineer license for individuals who operate, manage, or take charge of regulated steam and hot-water boiler equipment and steam plants within the city. The written examination is administered by Continental Testing Services on behalf of the Chicago Department of Buildings and is designed to measure the knowledge needed to safely operate boilers and associated steam-plant equipment.
This package includes Low Pressure Boilers, 3rd Edition, High Pressure Boilers, 6th Edition, 2019, Steam Plant Operation, 10th Edition, ASME Boiler & Pressure Vessel Code, Section VI: Recommended Rules for the Care and Operation of Heating Boilers, and ASME Boiler & Pressure Vessel Code, Section VII: Recommended Guidelines for the Care of Power Boilers.
The Chicago Stationary Engineer examination places substantial emphasis on safe boiler operation and controls. Other tested subjects include boiler types, steam and water systems, combustion, fuel systems, maintenance, valves, pumps, piping, boiler accessories, and boiler-room safety. Candidates should be able to connect operating principles with practical safety procedures rather than relying on isolated facts.
This book package is designed to help candidates build the broad technical foundation needed for the Chicago 301 Stationary Engineer exam. The references provide detailed explanations of boiler construction and operation while also addressing the operating practices and safety principles stationary engineers encounter when managing steam and hot-water systems.
Together, these references cover low- and high-pressure boiler operation, steam-plant fundamentals, boiler accessories, combustion, controls, fuel systems, feedwater systems, maintenance, water treatment, safety devices, operating procedures, and recognized practices for heating and power boilers.
The Chicago 301 Stationary Engineer Licensure Examination is a written examination administered through Continental Testing Services for the City of Chicago Department of Buildings.
The official examination study guide provides candidates with 3 hours to complete the test. Candidates who earn a score of 70 or higher receive a passing result.
The published examination content outline divides the test into nine major areas:
Safe Operation of Steam Boilers and Controls are the two largest examination categories at 16% each. Together they represent nearly one-third of the published content outline, making safe operating procedures, safety controls, combustion controls, draft controls, and operating controls especially important areas of study.
Basic Principles and Units, Combustion Principles, and Equipment and Safety each account for 12% of the exam. Candidates should therefore have a working understanding of boiler fittings and accessories, feedwater systems, fuel systems, draft systems, steam systems, combustion theory, pumps, valves, piping, joints, boiler accessories, and boiler-room safety.
The Chicago 301 Stationary Engineer examination uses the listed references as study materials for examination preparation. Candidates should prepare to answer examination questions from their knowledge of the subject matter rather than depend on searching the books while testing.
This makes advance study especially important. Candidates should work through boiler terminology, operating sequences, safety devices, combustion principles, controls, water treatment, pumps, valves, fittings, pressure relationships, and emergency operating procedures until the concepts can be recognized and applied without lengthy reference searches.
The books remain valuable preparation tools because the official examination guide bases its questions on the technical material contained in the designated boiler and steam-plant references. Reading the material alongside practice questions can help candidates connect technical definitions with actual boiler operating situations.
The Chicago stationary engineer license is issued by the City of Chicago Department of Buildings. Continental Testing Services processes examination applications and administers the written examination.
This is a City of Chicago occupational license rather than a general statewide Illinois stationary engineer license. The licensing requirements apply to regulated stationary engineer work performed within Chicago under the city's municipal requirements.
A Chicago stationary engineer license is required before an individual uses, manages, or operates a steam engine or steam boiler with an output capacity greater than 50 boiler horsepower or intended for operation at a pressure greater than 10 psig.
The license is also required for operation of a hot-water boiler intended for operation above 160 psi or at a temperature above 250°F.
In addition, a licensed stationary engineer is required before an individual takes charge of, manages, or operates a steam plant within the City of Chicago. The city describes a steam plant as a system connected to regulated equipment and used to generate or distribute steam or hot water for space heating or industrial processes.
Chicago issues only one type of stationary engineer license. Applicants must be of good character, be at least 20 years of age, have at least two years of qualifying practical experience, and pass the required written examination.
The practical experience requirement can involve the management, operation, or construction of steam engines and boilers. Applicants must provide acceptable verification of that experience as part of the application process.
Once issued, the current Chicago stationary engineer license is valid for two years. Licensees are responsible for maintaining their license and complying with applicable city ordinances, safety requirements, and industry standards while operating regulated equipment.
Types of Boilers accounts for 10% of the published examination outline. Candidates should recognize high- and low-pressure boiler systems, fire-tube boilers, water-tube boilers, cast-iron boilers, electric boilers, and package boilers. Study how construction and operating characteristics differ among these boiler types.
Basic Principles and Units accounts for 12%. Review steam boiler fundamentals, fittings and accessories, feedwater systems, fuel systems, draft systems, and steam distribution. Understanding how each component interacts with the overall system is important when answering operating and troubleshooting questions.
Water and Steam Properties represents 7% of the exam. Study steam formation, pressure and temperature relationships, feedwater, steam accessories, boiler-water treatment, scale, sludge, and other residues that can affect heat transfer and boiler reliability.
Combustion Principles makes up 12%. Candidates should understand the theory and process of combustion, fuels, combustion accessories, air requirements, draft, burners, atomization, flame conditions, and combustion control.
Safe Operation of Steam Boilers is one of the two largest exam areas at 16%. Candidates should study startup, normal operation, shutdown, water-level monitoring, blowdown, low-water conditions, pressure control, safety devices, abnormal conditions, and emergency procedures.
Controls also represents 16%. Review safety controls, operating controls, combustion controls, draft controls, low-water cutoffs, pressure controls, flame safeguards, fuel shutoff systems, and the relationship between controls and safe boiler operation.
Maintenance and Safety accounts for 8%. Preparation should include cleaning, inspection, repair, replacement, scale removal, soot removal, preventive maintenance, and safe procedures for servicing boiler equipment.
Equipment and Safety represents 12%. Candidates should study valves, pumps, boiler accessories, piping, joints, fittings, gauges, safety valves, water columns, and general boiler-room safety. Understand both the purpose of each component and the risks associated with improper operation.
Fuel Combustion and Byproducts accounts for 7%. Review gas, oil, and electric boiler systems, fuel characteristics, combustion products, fuel preparation, burner operation, and conditions associated with incomplete or inefficient combustion.
The official Chicago study guide also contains sample multiple-choice questions that demonstrate the type of applied knowledge expected. Topics include high-pressure boiler definitions, pressure gauges, siphons, fuel-oil systems, low-water conditions, low-pressure boiler venting, low-water cutoff testing, flame failure, boiler-tube cleaning, fire extinguisher classifications, and fuel-oil preheating.
A productive study method is to divide preparation according to the official percentages. Spend additional time on controls and safe operation, but continue reviewing every section because the exam covers a wide range of boiler and steam-plant knowledge.
Candidates should also practice explaining why an operating procedure is safe or unsafe. Understanding the reason behind low-water protection, pressure-control settings, combustion safeguards, water treatment, proper blowdown, and fuel control is more useful than memorizing disconnected statements.
1 Exam Prep supports Chicago Stationary Engineer candidates through organized study guidance, boiler-focused technical review, practice-oriented preparation, and a structured approach to the topics identified in the official examination outline.
The Chicago Illinois 301 Stationary Engineer Book Package brings together resources covering both low- and high-pressure boilers, complete steam-plant operation, and recognized ASME operating guidance. Candidates can use the books to build knowledge progressively, beginning with boiler fundamentals and moving into controls, combustion, maintenance, safety, and power-boiler operation.
Organizing study around the official percentages can help candidates direct additional attention toward Safe Operation of Steam Boilers and Controls while still maintaining coverage of boiler types, steam properties, combustion, maintenance, equipment, and fuel systems.
Practice-oriented preparation can also help candidates become more comfortable with questions that present an operating situation and ask for the safest or technically correct response. Reviewing the underlying principles after each practice question builds stronger understanding than memorizing answer choices.
1 Exam Prep's goal is to help candidates build an organized preparation routine, strengthen boiler and steam-plant knowledge, and develop greater confidence with the technical subjects associated with the Chicago 301 Stationary Engineer licensure examination.
It is a City of Chicago license required for individuals who operate, manage, or take charge of certain regulated steam boilers, hot-water boilers, and steam plants within the city.
The written examination is administered by Continental Testing Services for the City of Chicago Department of Buildings.
The official examination study guide provides candidates with 3 hours to complete the test.
Candidates must earn a score of 70 or higher to receive a passing result.
Safe Operation of Steam Boilers and Controls are the largest categories, accounting for 16% each.
Yes. The published examination outline includes high- and low-pressure boiler types and tests operating principles that apply across boiler and steam-plant systems.
Yes. Combustion Principles account for 12% of the published examination outline, and Fuel Combustion and Byproducts account for another 7%.
Yes. Controls account for 16% of the examination and include safety controls, draft controls, combustion controls, and operating controls.
Applicants must have at least two years of practical experience in the management, operation, or construction of steam engines and boilers.
An applicant must be at least 20 years old.
The license is required for regulated steam equipment exceeding the city's specified boiler-horsepower or pressure thresholds, qualifying high-pressure or high-temperature hot-water boilers, and for individuals who take charge of, manage, or operate a steam plant within Chicago.
No. The City of Chicago currently issues one type of stationary engineer license.
The package combines low-pressure boiler instruction, high-pressure boiler instruction, steam-plant operation, and ASME heating- and power-boiler guidance to provide broad preparation across the technical subjects identified in the Chicago Stationary Engineer examination outline.