Nevada Chilled-Water Piping Contractor (C-1I) Exam Book Package

Prepare for the Nevada Chilled-Water Piping Contractor (C-1I) trade examination with a complete exam book package organized around chilled-water piping, mechanical and plumbing code requirements, piping installation, pumps, valves, equipment, mathematics, refrigeration concepts, and construction safety. This package combines the approved exam-room references with technical study books that help candidates build the trade knowledge needed for the Nevada C-1I examination.

The Nevada C-1I Chilled-Water Piping subclassification focuses specifically on piping and equipment used to transfer chilled water for temperature control. Candidates preparing for this classification should understand piping materials, installation methods, pumps, valves, controls, equipment connections, system operation, calculations, and applicable mechanical and plumbing codes.

The approved exam-room references included in this package are the Uniform Plumbing Code, 2018 and the Uniform Mechanical Code, 2018. Because the Nevada C-1I examination is open book, candidates should become comfortable navigating both code books before test day.

The package also includes Modern Refrigeration and Air Conditioning, 22nd edition, Mathematics for Plumbers and Pipefitters, 8th edition, and Code of Federal Regulations - 29 CFR Part 1926 (OSHA). These books support technical preparation but are not allowed into the C-1I trade examination.

Using the study-only references before testing can help candidates strengthen refrigeration fundamentals, piping mathematics, jobsite safety, equipment knowledge, and practical installation concepts. During the examination, candidates must rely on their technical knowledge along with the approved Uniform Plumbing Code and Uniform Mechanical Code references.

A productive C-1I study strategy combines trade understanding with efficient code navigation. Candidates should know when a question can be answered directly and when a precise code requirement needs to be located in one of the approved references.

Exam Details

The Nevada C-1I Chilled-Water Piping trade examination is administered through PSI for candidates authorized to test through the Nevada State Contractors Board.

• Exam: Nevada C-1I Chilled-Water Piping
• Testing Provider: PSI
• Number of Questions: 30
• Time Allowed: 75 minutes
• Minimum Passing Score: 21 correct answers

The examination content is divided into the following subject areas:

• Piping Materials: 10 questions
• Piping Installation: 10 questions
• Valves, Controls, Pumps, and Equipment: 7 questions
• Safety: 3 questions

Piping Materials represents one-third of the examination. Candidates should understand common piping materials, fittings, joining methods, compatibility, applications, supports, and code requirements related to chilled-water piping systems.

Piping Installation also accounts for 10 questions. Preparation should include layout, installation methods, supports, joining, routing, equipment connections, valves, system components, and requirements found in the Uniform Plumbing Code and Uniform Mechanical Code.

Valves, Controls, Pumps, and Equipment accounts for seven questions. Candidates should understand how pumps move chilled water through a system, how valves regulate and isolate flow, how controls affect system operation, and how equipment components work together within a chilled-water piping system.

Safety accounts for three questions. Candidates should understand common construction hazards, personal protective equipment, safe tool use, material handling, ladders, fall hazards, and other jobsite safety principles applicable to piping work.

With 30 questions and 75 minutes available, candidates have approximately two and a half minutes per question. Efficient reference use is important. Candidates should avoid spending excessive time searching through a code book when the answer can be determined from trade knowledge.

Open Book Test

The Nevada C-1I Chilled-Water Piping examination is an open-book test. The approved exam-room references included in this package are:

• Uniform Plumbing Code, 2018
• Uniform Mechanical Code, 2018

Candidates should practice with both references throughout preparation. The Uniform Plumbing Code and Uniform Mechanical Code serve different purposes, and efficient exam performance depends in part on recognizing which book is most likely to contain the information needed for a particular question.

The Uniform Plumbing Code supports preparation involving piping materials, installation requirements, fittings, joints, water-system provisions, and related piping requirements.

The Uniform Mechanical Code supports preparation involving mechanical equipment, hydronic piping relationships, system components, mechanical installation requirements, and other provisions relevant to chilled-water piping.

References permitted in the examination may be highlighted, underlined, and indexed before the exam. Permanent tabs may be used. Temporary tabs such as Post-it notes are not allowed.

The following included books are not allowed into the C-1I examination:

• Modern Refrigeration and Air Conditioning, 22nd edition
• Mathematics for Plumbers and Pipefitters, 8th edition
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)

These references should be used before test day to develop technical knowledge. Candidates should be prepared to apply refrigeration concepts, piping mathematics, and safety principles without having these books available during the examination.

Licensing Steps

The Nevada State Contractors Board regulates the C-1I Chilled-Water Piping subclassification. Passing the trade examination is one part of the complete Nevada contractor licensing process.

1. Confirm the C-1I classification. Determine that Chilled-Water Piping matches the type of contracting work the business intends to perform.
2. Identify the qualifying individual. Designate the person who will satisfy the applicable technical experience and examination requirements.
3. Document qualifying experience. Prepare records describing work with chilled-water piping, pumps, valves, controls, equipment, piping materials, and related systems.
4. Prepare the Nevada contractor license application. Gather business information, qualifier information, experience documentation, financial information, and required supporting materials.
5. Submit the application. The Nevada State Contractors Board reviews the applicant's qualifications before examination eligibility is established.
6. Complete applicable background requirements. Follow required fingerprint, disclosure, and background procedures.
7. Meet financial responsibility requirements. Provide the applicable financial information required for Nevada contractor licensing.
8. Receive examination eligibility. Candidates who must test can proceed with scheduling after authorization.
9. Schedule the C-1I examination through PSI. Arrange the Chilled-Water Piping trade examination after eligibility has been established.
10. Prepare for the trade examination. Review piping materials, piping installation, valves, controls, pumps, equipment, safety, mathematics, and code navigation.
11. Complete applicable management qualification requirements. Nevada contractor licensing also includes management qualification requirements in addition to the trade examination.
12. Complete required examinations. Satisfy applicable trade and management testing requirements unless an approved waiver applies.
13. Complete remaining licensing requirements. Address applicable bonding, financial responsibility, background, and other Nevada State Contractors Board requirements.

State Requirements

The Nevada C-1I Chilled-Water Piping subclassification covers the fabrication, installation, repair, and removal of pipes, pumps, valves, and other equipment used in the transfer of chilled water for temperature control.

The C-1I scope is specifically focused on the chilled-water piping side of the system. The classification does not authorize the C-1I license holder to fabricate, install, repair, remove, or connect to a chiller.

This distinction is important when preparing for both the examination and actual licensed work. Candidates should understand piping distribution, pumps, valves, system components, and equipment used to move chilled water while recognizing the limits of the subclassification.

For the standard Nevada contractor licensing pathway, the qualifying individual generally must document at least four years of qualifying experience within the 10 years immediately preceding the application.

Qualifying experience should directly relate to the classification requested. Applicants should maintain organized documentation describing the work performed, systems installed or repaired, responsibilities held, and the period during which the experience was obtained.

Nevada contractor licensing also includes management qualification, financial responsibility review, bonding, background procedures, and other requirements administered by the Nevada State Contractors Board. Passing the C-1I trade examination alone does not automatically result in contractor license issuance.

Reference Books

• Uniform Plumbing Code, 2018
  Approved exam-room reference supporting preparation involving piping materials, joints, fittings, installation requirements, water-system provisions, and other piping-related code requirements relevant to the Nevada C-1I examination.
• Uniform Mechanical Code, 2018
  Approved exam-room reference supporting mechanical-code preparation involving hydronic systems, mechanical equipment, piping relationships, system components, and installation requirements relevant to chilled-water piping.
• Modern Refrigeration and Air Conditioning, 22nd edition
  Study reference supporting refrigeration fundamentals, mechanical-system principles, system components, pumps, equipment, controls, heat transfer, and chilled-water-related technical knowledge. This book is not allowed into the C-1I examination.
• Mathematics for Plumbers and Pipefitters, 8th edition
  Study reference supporting mathematics used in piping work, including measurements, calculations, geometry, offsets, dimensions, and problem-solving relevant to plumbers and pipefitters. This book is not allowed into the C-1I examination.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Study reference supporting construction-safety preparation involving personal protective equipment, fall hazards, ladders, tools, material handling, and other jobsite safety topics. This book is not allowed into the C-1I examination.

Exam Room Approved Books

• Uniform Plumbing Code, 2018
  This reference is approved for use during the Nevada C-1I Chilled-Water Piping trade examination.
• Uniform Mechanical Code, 2018
  This reference is approved for use during the Nevada C-1I Chilled-Water Piping trade examination.

Modern Refrigeration and Air Conditioning, Mathematics for Plumbers and Pipefitters, and OSHA are study references only and are not allowed into the C-1I examination room.

Test Information and Study Materials

A productive C-1I study plan should begin with the exam weighting. Piping Materials and Piping Installation each account for 10 questions, meaning those two areas alone represent 20 of the 30 questions on the examination.

Prioritize piping materials. Review common piping materials, fittings, joining methods, compatibility, supports, applications, and applicable mechanical and plumbing-code requirements.

Study piping installation thoroughly. Review layout, routing, support, joining, system connections, installation practices, and requirements found in the UPC and UMC.

Review pumps and valves. Understand how pumps create circulation, how valves regulate or isolate flow, and how these components affect system performance.

Study controls and equipment. Review the function of controls and other equipment associated with chilled-water transfer systems.

Practice piping mathematics. Use Mathematics for Plumbers and Pipefitters to strengthen calculations involving measurements, dimensions, geometry, and piping layouts. Because the book is not allowed into the exam, candidates should practice until common calculations can be completed independently.

Strengthen refrigeration fundamentals. Use Modern Refrigeration and Air Conditioning to understand system components, heat-transfer concepts, pumps, controls, and the broader mechanical principles behind chilled-water systems.

Prepare for safety. Use OSHA during study to reinforce safe construction practices. Candidates should be prepared to answer safety questions without using OSHA during the examination.

Practice code navigation. Work directly with the Uniform Plumbing Code and Uniform Mechanical Code. Learn which reference applies to different types of questions and practice locating information within a limited amount of time.

Use timed practice. With 75 minutes for 30 questions, candidates should develop a steady pace and avoid lengthy reference searches.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Nevada C-1I Chilled-Water Piping Contractor candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and confidence-building study structure.

The C-1I examination is heavily focused on piping materials and installation, so a structured study approach helps candidates devote appropriate time to the largest exam categories while still covering valves, controls, pumps, equipment, and safety.

Reference-navigation preparation focuses on the Uniform Plumbing Code and Uniform Mechanical Code because those are the approved references candidates can use during the trade examination. Practice can help candidates identify which code applies to a question and locate the relevant information efficiently.

The study-only references add technical depth. Modern Refrigeration and Air Conditioning supports understanding of chilled-water and refrigeration-related equipment, Mathematics for Plumbers and Pipefitters strengthens calculation skills, and OSHA reinforces jobsite safety knowledge.

Practice-oriented preparation can help candidates identify weak areas. A candidate with strong piping-installation experience may need more code-navigation or mathematics practice, while another may need additional work with pumps, controls, materials, or safety.

By combining approved exam-room code books with refrigeration, mathematics, and safety study materials, 1 Exam Prep helps candidates build an organized preparation strategy for the Nevada C-1I Chilled-Water Piping Contractor examination.

Frequently Asked Questions

What books are included in the Nevada C-1I Exam Book Package?

The package includes the Uniform Plumbing Code, 2018; Uniform Mechanical Code, 2018; Modern Refrigeration and Air Conditioning, 22nd edition; Mathematics for Plumbers and Pipefitters, 8th edition; and OSHA 29 CFR Part 1926.

Is the Nevada C-1I examination open book?

Yes. The Nevada C-1I Chilled-Water Piping examination is an open-book test using the approved references.

Which books are allowed into the C-1I examination?

The Uniform Plumbing Code, 2018 and Uniform Mechanical Code, 2018 are approved for use during the C-1I trade examination.

Which included books are not allowed into the exam?

Modern Refrigeration and Air Conditioning, Mathematics for Plumbers and Pipefitters, and OSHA 29 CFR Part 1926 are study references and are not allowed into the C-1I examination.

How many questions are on the Nevada C-1I exam?

The examination contains 30 questions.

How much time is allowed for the C-1I exam?

Candidates have 75 minutes to complete the examination.

What score is required to pass?

The minimum passing score is 21 correct answers out of 30 questions.

What are the largest C-1I exam categories?

Piping Materials and Piping Installation are the two largest categories, with 10 questions each.

What does the Nevada C-1I classification cover?

The classification covers fabrication, installation, repair, and removal of pipes, pumps, valves, and other equipment used to transfer chilled water for temperature control.

Can a C-1I contractor connect to or work on a chiller?

No. The C-1I scope does not authorize fabrication, installation, repair, removal, or connection to a chiller.

Why should I study piping mathematics?

Piping work commonly requires accurate measurements, dimensions, layouts, and calculations. Mathematics for Plumbers and Pipefitters supports these skills even though the book cannot be used during the examination.

Should I practice using both code books?

Yes. Candidates should become familiar with both the Uniform Plumbing Code and Uniform Mechanical Code and learn which reference applies to different types of exam questions.

Does passing the C-1I trade exam automatically issue a Nevada contractor license?

No. Passing the trade examination is one part of the licensing process. Applicants must also satisfy applicable experience, management, financial responsibility, bonding, background, and other Nevada State Contractors Board requirements.