Senior Electrical Supervisor Interview Questions and Answers

I always prioritize safety when working at heights by following specific precautions.

• Wearing appropriate personal protective equipment (PPE) such as safety harnesses, helmets, and non-slip footwear

• Using fall protection systems like guardrails, safety nets, or lifelines

• Regularly inspecting and maintaining equipment like ladders, scaffolds, and platforms

• Ensuring proper training and certification for working at heights

• Implementing a buddy system or having a spotter to provide as...read more

A tap changer is a device used to adjust the turns ratio of a transformer, typically connected on the high voltage side. Primary and secondary current of a 66/11kV transformer can be calculated using the transformer turns ratio. Safety devices in a transformer include Buchholz relay, pressure relief valve, and oil temperature gauge.

• Tap changer adjusts the turns ratio of a transformer to regulate the output voltage.

• It is usually connected on the high voltage side of the transf...read more

FLP glands of LT cable are flameproof glands used to secure cables in hazardous areas. They are defined by their parts and IS code.

• FLP glands are used to secure LT cables in hazardous areas

• They consist of parts such as body, compression nut, sealing ring, and earth tag

• IS code for FLP glands of LT cable is IS 2148:2004

HVAC stands for Heating, Ventilation, and Air Conditioning. It is used in buildings to control temperature, humidity, and air quality. VFDs are used in HVAC systems to control the speed of motors.

• HVAC stands for Heating, Ventilation, and Air Conditioning

• It is used in buildings to control temperature, humidity, and air quality

• VFDs (Variable Frequency Drives) are used in HVAC systems to control the speed of motors

• VFDs help in energy savings by adjusting motor speed based on the...read more

Motor capacity can be estimated by measuring the current drawn by the motor and the voltage applied to it.

• Measure the current drawn by the motor using an ammeter

• Measure the voltage applied to the motor using a voltmeter

• Use the formula P = VI to calculate the power of the motor

• Convert the power to horsepower or kilowatts to determine the motor capacity

• Consult motor catalogs or online resources to compare the calculated capacity with known motor specifications

VFD stands for Variable Frequency Drive. It is used to control the speed of an electric motor and can provide energy savings and improved process control.

• VFDs adjust the frequency and voltage supplied to the motor, allowing for precise speed control.

• Applications include HVAC systems, pumps, fans, conveyors, and machine tools.

• Benefits include energy savings, reduced wear and tear on equipment, and improved process control.

• Example: Using a VFD on a pump motor to adjust the flow...read more

Sort Set Shine Standardize Sustain are the 5S principles of workplace organization.

• Sort: Remove unnecessary items from the workplace.

• Set: Organize the remaining items in a logical manner.

• Shine: Clean and maintain the workplace regularly.

• Standardize: Establish procedures and standards for maintaining the workplace.

• Sustain: Continuously improve and sustain the 5S principles.

To row solve sub contractors billing, ensure accurate tracking of work completed, materials used, and hours worked.

• Maintain detailed records of work completed by each subcontractor

• Verify invoices against work completed and materials used

• Track hours worked by subcontractors to ensure accurate billing

• Address any discrepancies or issues promptly to avoid delays in payment