on job Training Interview Questions and Answers

A transformer is an electrical device that changes low voltage to high voltage, enabling efficient power transmission.

• Transformers operate on the principle of electromagnetic induction.

• They consist of primary and secondary coils wound around a magnetic core.

• Step-up transformers increase voltage, while step-down transformers decrease it.

• Example: Power plants use step-up transformers to transmit electricity over long distances.

AM/NS is a joint venture between ArcelorMittal and Nippon Steel Corporation, producing a wide range of steel products.

• AM/NS produces various steel products such as hot-rolled, cold-rolled, and coated steel sheets.

• They also manufacture steel plates, pipes, and tubes for various industries.

• AM/NS offers specialized products like electrical steel for transformers and automotive steel for car manufacturers.

An engine converts fuel into mechanical energy, powering vehicles and machinery through combustion or electric processes.

• Types of engines include internal combustion engines (e.g., gasoline engines) and electric engines (e.g., electric cars).

• Internal combustion engines work by igniting fuel-air mixtures in cylinders, producing power through piston movement.

• Electric engines use electric energy stored in batteries to drive motors, offering cleaner and more efficient operation.

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Power factor is a measure of how effectively electrical power is being used in a circuit.

• Power factor is the ratio of real power to apparent power in a circuit.

• It is a number between 0 and 1, with 1 representing perfect efficiency.

• Low power factor can result in increased energy costs and inefficient use of electrical power.

• Power factor correction can be used to improve power factor and reduce energy consumption.

• Formula: Power Factor = Real Power / Apparent Power