Boilermakers Apprenticeship Aptitude Test
Prepare for union boilermaker recruitment with targeted practice on pressure vessel geometry, plate layout, thermal expansion, rigging mechanics, and AWS welding symbols.
$91,000+
Journeyman Wage
70%
Passing Cutoff
Timed
No Calculator
Start Your Boilermakers Aptitude Preparation
Open your study workspace to access section quizzes, timed simulations, or take the free 15-question diagnostic.
1. Written Exam Sections
Circumference, cylinder volume, plate thickness stretch-outs, nozzle offsets, and fractions
Hydrostatic pressure, thermal expansion, chain hoists, wire rope rigging, and metallurgy
AWS weld symbols, OSHA confined space entry (29 CFR 1910.146), and atmospheric hazards
2. Boilermakers Pressure Vessel Suite
Mean diameter stretchouts, hydrostatic testing, AWS weld symbols, and interview rubric.
AI Oral Interview Coach
Build 100/100 STAR answers for the Boilermakers interview panel.
Boilermakers Interview Guide
Heavy welding, confined spaces, turnaround shutdowns, and rubric.
Vessel Geometry & Weld Symbols
Circumference, mean diameter, plate stretchout, and AWS symbols.
Hydrostatic & Fluid Physics
Hydrostatic test pressure, head pressure, and Pascal’s Law.
Fraction & Geometry Drills
Plate thicknesses, bolt circle divisions, and mean diameters.
Pressure & Unit Drills
PSI, cubic feet, gallons, and plate weight conversions.
Frequently Asked Questions
What is covered on the Boilermaker apprenticeship test?
The test covers trade mathematics (geometry of cylinders/cones, fractions, plate thickness allowances), mechanical reasoning (pumps, rigging, thermal expansion, leverage), and blueprint/safety reading (weld symbols, atmospheric testing, OSHA confined spaces).
Are calculators permitted?
Most IBB training committees strictly prohibit calculators. Test-takers must solve decimal and fractional geometry by hand.