NABCEP PVIP
Solar installers, designers and project engineers preparing for the NABCEP PV Installation Professional exam.
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Practice that pushes you until you are ready.
For the hard professional exams and the jobs the AI build-out is creating: solar, inspection, electrical, data centers and carbon. Original questions, worked solutions and full mock exams. Sold once, yours for life.
Exam prep
Texas Journeyman Electrician
Electrical apprentices preparing for the Texas journeyman electrician licensing exam (TDLR, delivered by PSI).
See what you getAPI 510
Inspectors and engineers preparing for the API 510 Authorized Pressure Vessel Inspector exam.
See what you getBICSI RCDD
ICT and data-centre designers preparing for the BICSI Registered Communications Distribution Designer exam.
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Check our AI-drafted practice questions for an exam you passed and earn 50% of what that exam's pack sells.
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Data Center Technician Fundamentals
Electricians, HVAC technicians and facility staff moving into data center work.
See the courseCarbon and GHG Accounting
Engineers, analysts and sustainability staff who need to build or check a company's greenhouse-gas inventory.
See the courseHow we build it
Written by AI agents for the real job
Our AI agents write original questions from each exam's published outline and from the tasks the job really involves: code lookups, calculations and procedures, not trivia.
Checked twice
Every calculation is recomputed by code. We are recruiting professionals who passed each exam to review the content.
It pushes back
The practice tracks what you miss and keeps coming back to it in new forms until you get it right. Timed mock exams tell you when you are ready.