Preview Questions Electrical Maintenance Engineer | Role Specific Skill

Question 1: In troubleshooting an overheating motor, which parameter is crucial to check for identifying the root cause?

Which action should you take?

Choose only one option

Voltage imbalance

Mechanical alignment

Phase rotation

Resistance of motor windings

Question 2: Which procedure is recommended before working on an electrical circuit?

Which action should you take?

Choose only one option

Always verify the absence of voltage using an appropriate testing device

Conduct a visual inspection of the circuit for damage before work begins

Use insulated hand tools to prevent shock

All of the above

Question 3: What must be documented when conducting a root cause analysis for an electrical system failure?

Which action should you take?

Choose only one option

The exact date and time of failure, and the personnel involved in identifying the cause

All of the above

The individual components that failed and the method of failure

A summary of the failure, corrective actions, and any new preventive measures

Question 4: When installing a VFD (Variable Frequency Drive) system, what is an essential precaution before connecting the motor?

Which action should you take?

Choose only one option

Confirm proper grounding of both the motor and VFD

Check the motor insulation resistance before connection

Verify the motor's rated voltage and current match the VFD output

Ensure the VFD is calibrated to the specific frequency range of the motor

Question 5: What type of documentation is required for commissioning new electrical systems in a plant?

Which action should you take?

Choose only one option

A summary of the testing results and the expected lifespan of the system

Design and installation documentation with test results and certification

Detailed project reports and commissioning tests

A checklist of tools and equipment used during the commissioning

Question 6: Which method is most effective for inspecting underground cables for defects?

Which action should you take?

Choose only one option

Using partial discharge testing

Applying thermal imaging

Checking cable ends visually

Using a megger