Precision Shop Balancing Online Examination

Examination Description

The Precision Shop Balancing Online Examination evaluates the technical knowledge and decision-making skills required to balance industrial rotors accurately in a workshop environment.

Questions are based on practical balancing situations rather than simple memorisation. Candidates may be required to select the correct machine configuration, identify suitable correction planes, interpret polar results, calculate mass corrections, assess residual unbalance, or diagnose inconsistent measurements.

The examination also evaluates the candidate’s understanding of rotor mounting, balancing speed, calibration, machine sensitivity, runout, tooling errors, hard-bearing and soft-bearing machines, key conventions, correction methods, and final quality verification.

Successful candidates demonstrate that they understand the complete shop-balancing process—from preparing and mounting the rotor to documenting the final accepted result.

Knowledge Areas Assessed

• Fundamentals of precision rotor balancing
• Static, couple, and dynamic unbalance
• Rigid and flexible rotor behaviour
• Field balancing versus shop balancing
• Horizontal and vertical balancing machines
• Hard-bearing and soft-bearing principles
• Rotor inspection and preparation
• Journal, shaft, and mechanical runout
• Rotor mounting and support selection
• Belt, end, and cardan-shaft drives
• Machine setup and safety
• Rotor dimensions and correction planes
• Machine calibration and sensitivity
• Single-plane balancing
• Two-plane balancing
• Polar displays and correction calculations
• Adding and removing correction mass
• Splitting, combining, and relocating weights
• Half-key and full-key conventions
• Trim balancing
• Residual unbalance
• Balance quality grades and tolerances
• Repeatability and measurement errors
• Final inspection and balancing reports

Who Should Take This Examination?

• Participants who have completed the LGP Institute Precision Shop Balancing Course
• Balancing-machine operators
• Workshop and rotor-repair technicians
• Electric motor repair specialists
• Quality-control personnel
• Maintenance and reliability engineers
• Vibration analysts
• Professionals seeking to validate their shop-balancing knowledge

Before Taking the Examination

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

Make sure you have a stable internet connection and sufficient uninterrupted time. Carefully review all rotor dimensions, units, correction-plane positions, tolerance values, and machine readings provided in each question.

Passing and Certification

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

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

Examination Information

• Examination Fee: USD 90
• Delivery Method: Online
• Language: English
• Minimum Passing Score: 70%
• Certificate Issuer: LGP Institute, Türkiye
• Recommended Preparation: Completion of the Precision Shop Balancing Course