Prepare for the Nevada Pipeline And Conduits Contractor (A-19) examination with a comprehensive reference package covering gas piping, water piping, welding, excavation, paving, underground utility awareness, construction safety, and pipeline installation practices. This package combines the NFPA 30, Flammable and Combustible Liquids Code, 2018 with a broad group of technical study references designed to support the major subjects tested on the Nevada A-19 trade examination.
The Nevada A-19 examination is an open-book test, but only the NFPA 30, Flammable and Combustible Liquids Code, 2018 from this package is allowed into the examination room. The remaining books are study references and are not allowed in the exam. Candidates should therefore use those materials before test day to build the trade knowledge needed for gas piping, water piping, excavation, grading, welding, paving, safety, and Nevada One Call questions.
The A-19 examination contains 60 questions, allows 2 hours for completion, and requires 42 correct answers to pass. Gas Piping and Water Piping are the two largest sections with 15 questions each. Candidates should also prepare for Welding, Safety, Paving, Excavation, Compaction and Grading, and Nevada One Call.
Nevada's A-19 Pipeline and Conduits classification covers the fabrication and installation of electrical conduits and pipelines, including work necessary to complete those installations such as trenching, boring, shoring, backfilling, compacting, paving, surfacing, and application of protective coatings. The classification also encompasses the work authorized under the A-19A Water, A-19B Gas, and A-19C Electrical Conduits for Underground Transmission subclassifications.
This wide scope makes preparation especially important. An A-19 candidate is not studying only pipe installation. The exam reaches into excavation, pipeline materials, gas systems, water systems, welding, pavement restoration, utility marking, and safety. The references in this package allow candidates to approach those subjects as parts of a complete underground pipeline and conduit project.
The Nevada A-19 Pipeline and Conduits examination contains 60 questions. Candidates are allowed 2 hours to complete the examination and must answer 42 questions correctly to pass.
The examination content is divided into the following areas:
Gas Piping and Water Piping together make up half of the examination. Candidates should understand pipeline materials, fittings, installation procedures, joining methods, protection, testing concepts, trench conditions, and the differences between systems intended for water and gas service.
Safety and Excavation, Compaction and Grading each account for 8 questions. Underground construction introduces hazards involving trenches, heavy equipment, buried utilities, moving vehicles, material handling, and changing soil conditions. Candidates should treat these subjects as core A-19 knowledge.
Welding accounts for 6 questions. Preparation should include pipe preparation, welding procedures, joints, equipment, workmanship, and concepts related to producing suitable welded connections.
Paving accounts for 5 questions because pipeline projects frequently require restoration of streets, driveways, or other paved surfaces after trenching and underground work are completed.
The Nevada A-19 Pipeline and Conduits examination is an open-book test.
The NFPA 30, Flammable and Combustible Liquids Code, 2018 is the reference from this package allowed into the examination room.
The other references in this package are not allowed into the examination. Candidates should use OSHA, ASME B31.8, Pipefitter's Handbook, the ductile iron installation guide, Pipe and Excavation Contracting, Nevada One Call material, concrete pipe installation material, the Hot Mix Asphalt Paving Handbook, and Pipe Welding Procedures as preparation resources before test day.
Because only one of the included references is available during the exam, candidates should not approach the test as though every trade question can be answered through book lookup. Gas piping, water piping, welding, excavation, paving, safety, and utility-marking knowledge must be developed during preparation.
The allowed NFPA 30 reference may be highlighted, underlined, and indexed before the examination. Permanent tabs may be used for indexing. Written notes and additional loose or attached papers are not permitted in the approved reference, and temporary tabs are not allowed.
With 60 questions in two hours, candidates have an average of approximately two minutes per question. Efficient preparation should therefore combine trade knowledge with familiarity with the approved code reference.
The Nevada A-19 trade examination is one part of the contractor licensing process. Applicants must complete the applicable qualification, application, examination, and licensing requirements before a contractor license is issued.
Nevada classifies A-19 Pipeline and Conduits under General Engineering contracting.
The scope includes the fabrication and installation of electrical conduits only and pipelines, together with trenching, boring, shoring, backfilling, compacting, paving, surfacing, and application of protective coatings necessary to complete the installation of pipes and conduits.
A holder of the A-19 classification may also perform work authorized under the related A-19A Water, A-19B Gas, and A-19C Electrical Conduits for Underground Transmission subclassifications.
This broad scope explains why the examination combines pipeline trade knowledge with earthwork and surface-restoration subjects. A pipeline installation requires more than assembling pipe. Contractors must understand how to excavate safely, prepare trenches, install and join piping, protect the system, backfill and compact properly, and restore disturbed surfaces.
Underground utility awareness is also essential. Nevada One Call requirements and marking practices help contractors identify existing underground facilities before excavation begins and reduce the risk of damaging utilities during trenching or boring operations.
The remaining books in this package are study references and are not allowed into the A-19 examination room.
A strong Nevada A-19 study plan should begin with the two largest examination areas: Gas Piping and Water Piping.
For Gas Piping, candidates should study pipeline materials, fittings, joining methods, installation procedures, trench conditions, protective coatings, valves, pressure-related concepts, and the construction practices associated with gas transmission and distribution systems.
The ASME B31.8 reference can support deeper preparation for gas-pipeline subjects. Because it is not available during the examination, candidates should use repeated review and practice questions to turn that material into working knowledge.
For Water Piping, candidates should understand common pipeline materials, ductile iron installation, fittings, bedding, joining, trench preparation, support, backfill, compaction, and installation considerations.
The Installation Guide for Ductile Iron Pipe and concrete-pipe material can help candidates compare installation practices across different types of pipeline construction.
Excavation, Compaction and Grading is another major area. Candidates should understand excavation methods, trench preparation, shoring concepts, soil conditions, bedding, backfill, lift placement, compaction, and restoration of grade.
Pipeline performance depends heavily on the conditions surrounding the installed pipe. Improper bedding, poor backfill, or insufficient compaction can contribute to movement, settlement, or damage. Candidates should understand the relationship between earthwork and successful pipeline installation.
Safety should be studied alongside excavation rather than separately. Underground construction can expose workers to cave-ins, heavy equipment, traffic, suspended loads, tools, hazardous atmospheres, and existing utilities.
OSHA study should include trench and excavation safety, protective systems, access, personal protective equipment, equipment operation, and general construction hazard recognition.
Welding should include joint preparation, pipe alignment, welding techniques, equipment, procedures, and the importance of producing suitable connections. The Pipe Welding Procedures reference provides focused material for this portion of the exam.
Paving should be studied as part of project restoration. Pipeline work often requires cutting or disturbing pavement, and the completed project may require proper preparation, asphalt placement, joint construction, compaction, and surface restoration.
The Hot Mix Asphalt Paving Handbook can help candidates understand the sequence of paving operations and how material placement and compaction affect pavement quality.
Nevada One Call accounts for 3 questions. Candidates should understand underground utility notification and marking practices before excavation begins. This is a small exam category, but it represents an important part of safe pipeline construction.
A useful preparation method is to study the project in field sequence. Begin with utility notification and site planning, continue through excavation and trench protection, then review bedding, pipe installation, joining or welding, protective coatings, backfilling, compaction, and surface restoration.
This sequence helps connect individual examination categories to the actual progression of pipeline work.
Because most references are not allowed into the exam, candidates should use active recall. After reading a section, close the book and explain the procedure without referring back to the text. Then review anything that was missed.
Practice questions should be used to identify weak areas. If gas-piping questions are difficult, devote more time to ASME B31.8 and pipefitting material. If excavation questions are weak, return to Pipe and Excavation Contracting and OSHA. If paving questions are missed, focus on asphalt placement and restoration concepts.
For the approved NFPA 30 reference, candidates should practice navigation under timed conditions. Learn how the book is organized and become comfortable locating applicable requirements without searching randomly.
1 Exam Prep supports Nevada A-19 Pipeline and Conduits candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and confidence-building study structure.
The A-19 examination covers a wide range of pipeline construction knowledge. This package brings together references for gas piping, water piping, excavation, safety, welding, paving, utility marking, and pipeline installation so candidates can build a study plan around the complete exam outline.
The NFPA 30, Flammable and Combustible Liquids Code, 2018 supports code preparation and exam-room reference navigation. Candidates can become familiar with the approved book before test day and practice locating relevant requirements efficiently.
The study-only references support the technical knowledge that must be learned before entering the exam. ASME B31.8 supports gas-pipeline preparation, the ductile iron and concrete-pipe references support water-pipeline study, Pipe and Excavation Contracting supports earthwork, and Pipe Welding Procedures supports the welding category.
OSHA material strengthens safety preparation, while the Hot Mix Asphalt Paving Handbook and Nevada One Call material help candidates prepare for pavement restoration and underground utility questions.
1 Exam Prep encourages candidates to connect these subjects instead of studying them as unrelated chapters. A successful pipeline installation involves planning, excavation, safe trench conditions, correct materials, proper joining, backfill, compaction, and restoration. Understanding the entire process can make individual exam questions easier to interpret.
The goal is to help candidates approach the Nevada A-19 Pipeline and Conduits Contractor examination with stronger trade knowledge, better reference-navigation skills, improved recall, and an organized preparation strategy without guaranteeing a passing score or licensing approval.
The Nevada A-19 Pipeline and Conduits examination contains 60 questions.
Candidates are allowed 2 hours to complete the examination.
Candidates must answer 42 questions correctly to pass the A-19 examination.
Yes. The Nevada A-19 Pipeline and Conduits examination is an open-book test with an approved reference permitted in the examination room.
The NFPA 30, Flammable and Combustible Liquids Code, 2018 is the exam-room-approved reference included with this package.
No. OSHA, ASME B31.8, Pipefitter's Handbook, the ductile iron installation guide, Pipe and Excavation Contracting, Nevada One Call material, the concrete-pipe reference, Hot Mix Asphalt Paving Handbook, and Pipe Welding Procedures are study references and are not allowed into the examination.
The examination includes 15 Gas Piping questions.
The examination includes 15 Water Piping questions.
Yes. The examination includes 6 Welding questions.
Yes. Excavation, Compaction and Grading accounts for 8 questions.
Yes. Nevada One Call accounts for 3 questions.
Pipeline work can require restoration of paved surfaces after excavation. The handbook supports preparation involving asphalt placement, compaction, joints, equipment, and paving procedures.
It supports preparation for trenching, excavation, shoring, backfilling, grading, compaction, equipment, and other earthwork involved in pipeline installation.
Use the study-only references to build knowledge through repeated review, practice questions, and active recall. Practice with NFPA 30 separately so you can navigate the approved exam-room reference efficiently.
No. The package provides organized study references designed to support preparation. Examination results depend on each candidate's experience, trade knowledge, study, recall, reference-navigation skills, and performance on test day.