Precision Field Balancing Online Examination

The Precision Field Balancing Online Examination evaluates the technical knowledge and decision-making skills required to balance rotating machinery in its operating environment.

The questions focus on realistic balancing situations rather than simple memorisation. Candidates may be required to evaluate vibration and phase stability, select an appropriate trial weight, interpret polar-vector information, calculate correction weights, or identify why a balancing attempt has failed.

The examination covers the complete balancing process—from confirming that unbalance is the actual fault and preparing the machine to completing trim runs and verifying the final residual vibration.

Successful candidates demonstrate that they understand both the balancing procedure and the principles behind the measurements generated by a modern vibration analyser or balancing instrument.

Knowledge Areas Assessed

• Fundamentals of rotor unbalance
• Static, couple, and dynamic unbalance
• Unbalance forces and their relationship with speed
• Confirmation of unbalance using vibration and phase
• Sensor and phase-reference setup
• Stable amplitude and phase measurements
• Vectors and polar plots
• Heavy spot and high spot
• Trial-weight selection and safe installation
• Weight, force, radius, and angle calculations
• Single-plane field balancing
• Two-plane field balancing
• Influence coefficients
• Static-couple balancing
• Overhung rotor balancing
• Splitting and combining weights
• Moving weights between different radii
• Trim balancing
• Four-run balancing without phase
• Common errors and troubleshooting
• Residual unbalance and acceptance criteria
• Balancing tolerances and relevant ISO principles
• Final verification and documentation

Who Should Take This Examination?

• Participants who have completed the LGP Institute Precision Field Balancing Course
• Vibration analysts
• Mechanical maintenance technicians
• Reliability engineers
• Condition monitoring specialists
• Rotating equipment technicians
• Professionals seeking to validate their field-balancing knowledge

Before Taking the Examination

Candidates are strongly advised to complete the Precision Field Balancing Course and review all lessons before beginning the examination.

Make sure you have a stable internet connection and sufficient uninterrupted time. Read each question carefully, review all measurement values, and pay close attention to phase conventions, weight positions, and calculation units.

Passing and Certification

A minimum score of 70% is required to pass the examination.

Candidates who successfully pass will receive a digital Precision Field Balancing Certificate issued by LGP Institute, Türkiye.

Examination Information

• Examination Fee: USD 100
• Delivery Method: Online
• Language: English
• Minimum Passing Score: 70%
• Certificate Issuer: LGP Institute, Türkiye
• Recommended Preparation: Completion of the Precision Field Balancing Course