KEC International Assistant Engineering Services Manager Interview Questions and Answers

Selection of a cable involves considering factors like voltage rating, current carrying capacity, insulation material, and environmental conditions.

• Determine the voltage rating required for the application.

• Calculate the current carrying capacity needed based on the load.

• Select the appropriate size and type of cable based on the current rating.

• Consider the insulation material suitable for the environment (e.g. PVC, XLPE...read more

Load factor is the ratio of the average load to the maximum load that a system can handle.

• Load factor is calculated by dividing the average load by the maximum load capacity.

• It is used to measure the efficiency of a system or equipment in handling varying loads.

• For example, a power plant with a load factor of 0.8 means it is operating at 80% of its maximum capacity.

The tertiary winding in a power transformer is important for providing a path for zero-sequence currents and reducing harmonics.

• Provides a path for zero-sequence currents, which helps in balancing the three-phase system

• Reduces harmonics in the system, improving power quality

• Helps in limiting fault currents and improving the overall efficiency of the transformer

To check if a lightning arrestor is working fine, you can perform visual inspections, check for physical damage, test for continuity, and monitor surge protection levels.

• Perform visual inspections for any signs of physical damage or wear

• Check for loose connections or corrosion on the lightning arrestor

• Test for continuity using a multimeter to ensure proper electrical connection

• Monitor surge protection levels to ensure ...read more

Steel measurement can be taken using various methods depending on the type of steel and the purpose of measurement.

• Use a micrometer or caliper to measure the thickness of steel plates or sheets.

• Use a tape measure or ruler to measure the length and width of steel bars or pipes.

• Use ultrasonic testing to measure the thickness of steel pipes or tanks.

• Use X-ray fluorescence (XRF) to measure the chemical composition of steel...read more

Cost can be calculated by considering all the expenses incurred in the production process.

• Identify all the expenses incurred in the production process

• Determine the quantity of materials required for production

• Calculate the cost of each material

• Add the cost of labor and overhead expenses

• Determine the profit margin and add it to the total cost

• Divide the total cost by the number of units produced to get the cost per unit