10+ Interview Questions and Answers

The ten delta test is a diagnostic test used to assess the condition of power transformers.

• The ten delta test measures the change in power factor between the initial and final stages of a transformer's life.

• It is used to detect insulation deterioration and moisture content in the transformer oil.

• Equipment used for the ten delta test includes a power factor test set, a transformer turns ratio tester, and a megohmmeter.

RCBO combines the functions of an RCD and a miniature circuit breaker, while RCCB and ELCB are older versions of RCDs.

• RCBO combines overcurrent protection (like a circuit breaker) with earth fault protection (like an RCD)

• RCCB is an older version of RCD that only detects earth faults

• ELCB is an even older version of RCD that detects earth faults by measuring the current imbalance between live and neutral wires

• RCBO is commonly used in modern electrical installations for better p...read more

High pot test is done to check the insulation of electrical equipment.

• High pot test is done to ensure the insulation in electrical equipment can withstand high voltage without breaking down.

• It helps in identifying any weaknesses or defects in the insulation that could lead to electrical hazards.

• The test involves applying a higher than normal voltage to the equipment to see if the insulation can handle it.

• High pot testing is commonly done on cables, transformers, and other ele...read more

HT cables are high tension cables used for transmitting electricity at high voltages.

• HT cables are designed to carry high voltage electricity, typically above 11kV.

• They are insulated to prevent leakage of current and ensure safety.

• HT cables are usually made of materials like cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR).

• They are often armored to protect against physical damage and environmental factors.

• HT cables must meet specific standards and regulatio...read more

UPM in data centre involves managing electrical systems, ensuring uptime, and implementing energy efficiency measures.

• Managing electrical systems to ensure continuous power supply

• Implementing energy efficiency measures to reduce costs

• Monitoring and maintaining backup power systems

• Troubleshooting electrical issues to minimize downtime

• Coordinating with other departments for electrical maintenance schedules

Isolation transformers are used to isolate electrical devices from the power source for safety and protection.

• Isolation transformers have primary and secondary windings that are electrically separated to prevent direct current flow between the input and output.

• They are commonly used in medical equipment, data centers, and sensitive electronic devices to protect them from electrical noise and voltage spikes.

• Isolation transformers can also be used to step up or step down voltag...read more

CPC CABLE stands for Circuit Protective Conductor cable, which is used for earthing and providing protection against electric shock.

• CPC CABLE is also known as the earth wire in electrical installations.

• It is typically colored green and yellow to distinguish it from other cables.

• The CPC CABLE is connected to metal parts of electrical equipment to prevent electric shock in case of a fault.

Closing stock is calculated by subtracting the cost of goods sold from the total cost of goods available for sale.

• Determine the total cost of goods available for sale during the accounting period

• Determine the cost of goods sold during the accounting period

• Subtract the cost of goods sold from the total cost of goods available for sale to get the closing stock value

• Closing stock = Total cost of goods available for sale - Cost of goods sold

The new scheme tax rate refers to the updated tax rate implemented by the government.

• The new scheme tax rate may be lower or higher than the previous tax rate.

• It is important for accountants to stay updated on the new tax rates to accurately calculate taxes for their clients.

• The new scheme tax rate may vary based on income brackets or specific industries.

• For example, the government may introduce a new tax rate for high-income earners or provide tax incentives for certain sect...read more

Maintenance of filter press and cooling tower involves regular inspections, cleaning, and replacement of parts to ensure efficient operation.

• Regularly inspect filter press for clogs and wear, clean or replace filter cloths as needed

• Check cooling tower for scale buildup and corrosion, clean or replace fill media

• Monitor water quality and chemical treatment to prevent fouling and corrosion

• Schedule routine maintenance tasks such as lubrication of moving parts and alignment checks...read more