Engineering Leadership Trainee Interview Questions and Answers

Answers to questions related to transformers, isolators, and circuit breakers.

• Transformer rating is in MVA because it indicates the maximum power that can be transferred through the transformer.

• Isolators are used to isolate a section of the electrical circuit for maintenance or repair work.

• Types of circuit breakers include air, oil, vacuum, and SF6 circuit breakers, each with their own advantages and disadvantages.

• Air circuit breakers are commonly used in low voltage applicat...read more

Substations are facilities used for transforming voltage levels and distributing electricity to consumers.

• Substations receive high voltage electricity from power plants or transmission lines.

• They transform the voltage to a lower level for distribution to homes and businesses.

• Substations may also include equipment for switching, protection, and control of the electrical grid.

• Examples of substations include step-down substations, distribution substations, and switching stations...read more

The weight of a 12mm diameter steel rod that is 12m long can be calculated using the formula for the weight of a cylindrical object.

• Calculate the volume of the steel rod using the formula for the volume of a cylinder: V = πr^2h

• Convert the volume to weight by multiplying it by the density of steel, which is typically around 7850 kg/m^3

• Weight = Volume x Density