Washington Boiler and Pressure Vessel Inspector License
The Boiler and Pressure Vessel Inspector License allows you to inspect boilers and pressure vessels that are:
- Currently in service
- Located at a facility but physically disconnected from the energy input and system
- No longer at a facility
- Scrapped
How to Get the Boiler and Pressure Vessel Inspector License in Washington?
In the state of Washington, all Boiler and Pressure vessel inspectors must have a "work card" issued by L&I. The applicant must meet the following steps to qualify for a work card.
- Fill out and submit an Application for Certificate of Competency as an Inspector of Pressure Retaining Items
- Note that the application must be received 30 days before the examination date
- Take and pass the National Board and the Washington State boiler examination
- For further information regarding the test administered by the NBBI, please refer to the Body of Knowledge, or contact the board directly at This email address is being protected from spambots. You need JavaScript enabled to view it. or by phone at 614-888-8320
- Boiler Inspector exams are provided by request. For further information regarding exam scheduling or information on the exam, please reach out to the Boiler Program's Administrative Assistant Jamie Brown, Secretary Supervisor, at 360-902-5271 or at This email address is being protected from spambots. You need JavaScript enabled to view it.
- Submit the corresponding examination fee
- Expect a response from the department in regards to the license
Washington Boiler and Pressure Vessel Inspector License Exam Prep Course
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Login credentials emailed upon enrollment
Unlimited access (no time limits)
Lecture videos
Practice questions
Key concepts
Step-by-step solutions to math problems
Live review
classes$525.00$525.00
Washington Boiler and Pressure Vessel Inspector License Exam
Below is all the information related to the trade exam, including the official reference list.
Washington Boiler and Pressure Vessel Inspector Trade Exam
- Testing Method: Computer-based testing
- Testing Company: PSI©
- Number of Questions: 85
- Types of Questions: Multiple choice
- Time Allowed: 420 Minutes
- Minimum Passing Score: 60 Questions
- Subjects Involved (No. of Questions):
Inservice Inspection
- Familiarity with the requirements for the inservice inspection of pressure-retaining items, as outlined in National Board Inspection Code, Part 2, Inspection, including a knowledge of internal/external inspection requirements, safety and confined space entry requirements, and deterioration
Boiler and Pressure Vessel Types and Terminology
- Ability to identify boiler and pressure vessel types and their corresponding parts
Conditions Causing Deterioration or Failures
- Ability to identify and understand the effects of operations on pressure-retaining items, including:
- Types of Corrosion and Deterioration:
- Corrosion by water
- Corrosion by process fluids
- Deterioration due to hydrogen
- Stress corrosion cracking
- Atmospheric corrosion and corrosion under installation
- Erosion and erosion-corrosion
- Other types of corrosion
- Failure Mechanisms:
- Mechanical and thermal problems
- High temperature problems
- Corrosion Calculations:
- Corrosion rate determination
- Corrosion averaging
- Widely scattered pitting
- Surfaces remote from a weld
- Corrosion in central portion of dished heads
- Estimated remaining life and corrosion rate
- Types of Corrosion and Deterioration:
- Ability to identify and understand the effects of operations on pressure-retaining items, including:
Installation
- Ability to identify and understand the general requirements for installation of pressure-retaining items including requirements for:
- Steam/hot water heating boilers
- Hot water supply boilers
- Potable water heaters
- Pressure vessels
- Piping
- Power/heating boilers
- Equipment requirements
- Source requirements
- Discharge requirements
- Operating systems
- Controls and gages
- Pressure relief valves
- Ability to identify and understand the general requirements for installation of pressure-retaining items including requirements for:
Code Calculations
- Ability to perform calculations, as they apply to re-ratings and remaining life. For example:
- Components under internal pressure:
- Calculation of minimum required thickness or maximum allowable working pressure (MAWP) of items such as tubing, piping, drums, shells, headers, and heads
- Static head calculations:
- Difference between vessel MAWP and vessel component MAWP
- Static head pressure on any vessel component
- Total pressure (MAWP + static head) on any vessel component
- Remaining life and inspection interval calculations:
- Calculation of metal loss (including corrosion averaging), corrosion rates, remaining service life, and inspection interval
- Components under internal pressure:
- Ability to perform calculations, as they apply to re-ratings and remaining life. For example:
Nondestructive Examination
- Ability to define and understand the requirements and guidelines for performing examinations and tests for the installation and inspection of pressure-retaining items; ability to define and understand the principles of the following nondestructive examination methods:
- Radiography
- Ultrasonic testing
- Magnetic particle testing
- Liquid penetrant testing
- Visual testing
- Ability to define and understand the requirements and guidelines for performing examinations and tests for the installation and inspection of pressure-retaining items; ability to define and understand the principles of the following nondestructive examination methods:
Pressure Testing
- Ability to define and understand the requirements and guidelines for performing examinations and tests for the installation and inspection of pressure-retaining items; ability to define and understand the different pressure testing methods and principles, such as:
- Liquid pressure test
- Pneumatic test
- Initial service leak test
- Vacuum test
- Ability to define and understand the requirements and guidelines for performing examinations and tests for the installation and inspection of pressure-retaining items; ability to define and understand the different pressure testing methods and principles, such as:
Pressure Relief Devices
- Ability to define and understand set pressure and relieving capacity requirements for pressurerelieving devices, including:
- Application and limitations
- Sizing for pressure and capacity
- Set pressures and allowable deviations
- Causes of improper performance
- Reasons for inspection and frequency determination
- Inspection and test service procedures
- Maintenance inspection safety practices
- Ability to define and understand set pressure and relieving capacity requirements for pressurerelieving devices, including:
Controls and Safety Devices
- Ability to define and understand controls and devices, including:
- Fuel
- Waterside
- Fireside
- Limit switches and device types
- Level indicators
- Ability to define and understand controls and devices, including:
- PSI© Boiler and Pressure Vessel Inspector Official Content Outline
Washington Boiler and Pressure Vessel Inspector Book Set
This set of books includes all required references for the Boiler and Pressure Vessel Inspector exam. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.
WASHINGTON BOILER AND PRESSURE VESSEL INSPECTOR - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS
Sales price: $3,992.99-
WASHINGTON BOILER AND PRESSURE VESSEL INSPECTOR - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS
Sales price: $4,062.99
Washington Boiler and Pressure Vessel Inspector Exam Books
Books Allowed in Testing
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Use the Rules for Commissioned Inspectors RCI...Rules for Commissioned Inspectors RCI-1 NB-26
$35.00$35.00 -
The National Board Inspection Code (NBIC Part...National Board Inspection Code (NBIC Part 1-2
$633.31$633.31 -
This Section provides requirements for all me...Rules for Construction of Power Boilers - Boi
$750.31$750.31 -
This code prescribes minimum requirements for...Power Piping, ASME Code for Pressure Piping A
$484.76$484.76 -
This Section provides requirements for design...Rules for Construction of Heating Boilers -Bo
$759.65$759.65 -
The Boiler and Pressure Vessel Code, Section ...Boiler and Pressure Vessel Code, Section VIII
$1,150.30$1,150.30 -
$179.66$179.66
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- Written by Adriana Camacho
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