Nahar Industrial Enterprises Interview Questions, Process, and Tips

The excitation system rating in kW reflects its power output capacity for effective generator operation.

• Excitation systems provide the necessary field current to the rotor of synchronous machines.

• The kW rating indicates the real power required to maintain the magnetic field.

• For example, a generator with a 200 kW excitation system can support a generator output of up to 200 kW.

• This rating helps in sizing the excitation ...read more

Transformers are rated in kVA to account for both active and reactive power, ensuring proper sizing for various loads.

• Transformers handle both active (kW) and reactive power (kVAR), making kVA a more comprehensive measure.

• Using kVA allows for the consideration of power factor, which varies with different loads.

• For example, a transformer rated at 100 kVA can support a load of 100 kW at a power factor of 1 (purely resist...read more

Synchronizing a generator without matching parameters can lead to severe mechanical and electrical issues.

• Phase mismatch can cause large circulating currents, potentially damaging equipment.

• Frequency differences can lead to mechanical stress on the generator and connected systems.

• Voltage mismatch may result in arcing at the circuit breaker contacts during synchronization.

• Example: If a generator is running at 60 Hz and ...read more

I have worked at multiple companies in the manufacturing and retail industries.

• Worked as a Purchase Manager at XYZ Manufacturing for 5 years

• Managed procurement at ABC Retail for 3 years

• Experience in negotiating contracts and sourcing suppliers

• Implemented cost-saving strategies in previous roles

I have 5 years of work experience with my earlier company.

• I have worked with my previous company for 5 years.

• During my time there, I managed procurement processes and vendor relationships.

• I successfully negotiated contracts and reduced costs by 10% in the first year.

• I also implemented inventory management systems to improve efficiency.

When receiving a material invoice, key points to check include quantity, price, item description, and vendor details.

• Check the quantity of items received against the quantity listed on the invoice

• Verify the price per unit matches the agreed upon price

• Ensure the item descriptions on the invoice match the items received

• Confirm the vendor details such as name, address, and contact information