Vindhya Telelinks QA QC Engineer Interview Questions and Answers

Transformers are electrical devices that transfer energy between two or more circuits through electromagnetic induction.

• Transformers work on the principle of electromagnetic induction

• They consist of primary and secondary coils wrapped around a core

• Step-up transformers increase voltage while step-down transformers decrease voltage

• Efficiency of transformers is determined by the ratio of output power to input power

Electrical testing for equipment involves verifying functionality and safety through various tests.

• Perform insulation resistance tests to check for any leakage currents

• Conduct continuity tests to ensure proper electrical connections

• Verify voltage and current ratings are within acceptable limits

• Test for proper grounding to prevent electrical hazards

• Use specialized equipment like multimeters and insulation testers

• Documen

Different cable types have varying current carrying capacities and methods of laying, impacting overall electrical system performance.

• Different cable types such as PVC, XLPE, and rubber have different current carrying capacities.

• Current carrying capacity is influenced by factors like conductor size, insulation material, and ambient temperature.

• Methods of laying cables include direct burial, conduit installation, and ov...read more