Senior Executive Engineer

Senior Executive Engineer Interview Questions and Answers for Freshers

Updated 16 Jun 2024

Q1. Describe the working of AC drives.

Ans.

AC drives control the speed and torque of electric motors by varying the frequency and voltage of the power supplied to the motor.

  • AC drives use power electronics to convert AC power to DC power and then back to AC power at variable frequencies.

  • They are commonly used in industrial applications to control the speed of pumps, fans, conveyors, and other motor-driven equipment.

  • AC drives improve energy efficiency by matching motor speed to the required load, reducing energy consump...read more

Q2. Sequence of BLT in Blast furnace

Ans.

The sequence of BLT in a blast furnace is B - L - T, where B stands for burden, L stands for lime, and T stands for temperature.

  • Burden (B) is the material that is charged into the blast furnace, typically consisting of iron ore, coke, and fluxes.

  • Lime (L) is added to the blast furnace to help remove impurities from the iron ore and create slag.

  • Temperature (T) is crucial in the blast furnace process to ensure proper melting and reduction of the iron ore.

  • Example: B - Iron ore, c...read more

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