The Electrical Generating Systems Association (EGSA) offers certification programs for professionals who service, install, and maintain standby and prime power generating systems. EGSA certifications span three levels: Level 1 Technician (entry-level), Level 2 Technician (advanced), and Level 3 Systems Specialist. All levels cover AC generators, engine systems, control systems, electrical fundamentals, and testing and maintenance procedures.
Our free EGSA practice test PDF gives you printable exam-style questions drawn from the full certification content outline. Download it below and use it alongside your official EGSA study materials.
The EGSA exam covers five major content areas. Here is what candidates at all levels are expected to know.
Alternator construction (rotor, stator, exciter), automatic voltage regulator (AVR) operation — sensing, comparison, amplification, correction — and AVR types including brushless excitation and static excitation. Parallel operation requirements cover voltage, frequency, phase angle, and phase sequence matching, along with real and reactive load sharing. Protective relays for paralleling include reverse power, over/under voltage, and over/under frequency relays.
The diesel four-stroke cycle (intake, compression, power, exhaust), fuel injection systems (injection timing, pump types, common rail injection), cooling (radiator, heat exchanger, jacket water heater for cold start), lubrication (oil pressure, filters, viscosity ratings), turbocharger and aftercooler operation, engine governing (mechanical vs. electronic; isochronous vs. droop), and Tier 4 Final EPA exhaust emissions compliance.
Transfer switch types (Open Transition, Closed Transition, Soft-Load), ATS time delay sequence (TD1–TD6 — normal to emergency transfer), engine starting circuits (battery voltage, starter motor, glow plugs), generator control panel protection shutdowns (low oil pressure, high coolant temperature, overcrank, overspeed), digital control modules, and SCADA/remote monitoring basics.
Ohm's Law, power factor (P = V × I × PF), three-phase power formulas, voltage drop calculations for cable sizing, grounding and bonding requirements for generators, fault current calculations. Candidates must also know NEC Article 700 (Emergency Systems), Article 701 (Legally Required Standby), Article 702 (Optional Standby) differences, and Article 445 (Generators).
NFPA 110 load test requirements — monthly 30-minute run at minimum load, annual full-load test — battery maintenance (specific gravity testing, load testing, charging), preventive maintenance schedules, vibration analysis, and fuel quality including diesel stability, water contamination detection, and ASTM D975 fuel specifications.
Prefer scored, interactive practice? Our online EGSA practice test delivers questions with instant feedback and answer explanations across all five exam content areas. Use the printable PDF for offline study and the online tests for timed scored runs — both tools together give you the most complete EGSA exam preparation available.