RITES Electrical Engineer Interview Questions, Process, and Tips

Q1. About electrical engineering questions related to power system and machine mostly
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Related to a recent issue.

Q1. 400 kv hardware detected
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400 kv hardware detected - need more context to provide answer
• What type of hardware is being referred to?

• What is the context of the detection?

• What are the potential implications of the detection?

• What steps need to be taken next?
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Q2. All 400 kv 220 kv line Hardware knowledge
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Q1. Flow calculation on orifice plate
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Flow calculation on orifice plate
• Determine the differential pressure across the orifice plate

• Calculate the flow rate using the orifice equation

• Consider the fluid properties and orifice plate dimensions
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Q2. About basic instrumentation
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Q3. Control system and their functionality
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Control systems are used to manage and regulate processes or machines.
• Control systems use sensors to measure inputs and outputs to adjust the system accordingly.

• They can be open-loop or closed-loop systems.

• Examples include thermostats, cruise control in cars, and autopilot in airplanes.

• Control systems can be designed using various techniques such as PID control, fuzzy logic, and neural networks.
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Q1. No salary negotiations being a public sector only location preference.
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Q1. Electrical project work. And testing
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Q2. Testing about transformer
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Testing of transformers involves various electrical tests to ensure proper functioning and safety.
• One common test is the turns ratio test to verify the turns ratio of primary and secondary windings.

• Another test is the insulation resistance test to check for any insulation breakdown.

• Short circuit test is performed to determine the copper losses in the transformer.

• Open circuit test is done to measure the core losses in t...read more
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Hard work versus smart work.

Q1. Why power plug earth wire is bigger in size?
Ans. 
The power plug earth wire is bigger in size to ensure safety and prevent electrical shocks.
• The earth wire provides a path for the current to flow in case of a fault or short circuit.

• A larger wire size reduces resistance and allows for the safe dissipation of excess current.

• It helps to protect individuals and equipment from electric shock hazards.

• The earth wire is connected to the ground, which acts as a reference point...read more
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Q2. Which conductor of same size will take larger current Al or Cu?
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Copper (Cu) conductor will take larger current than Aluminum (Al) conductor of the same size.
• Copper has a higher electrical conductivity than Aluminum.

• Copper has a lower resistivity than Aluminum.

• Copper has better thermal conductivity than Aluminum.

• Copper is more commonly used in high-current applications.

• Aluminum is often used in overhead power transmission lines due to its lighter weight.
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Q3. What is pulse width modulation in VFD?
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Pulse width modulation (PWM) is a technique used in VFD to control the speed of the motor by adjusting the width of the pulses of voltage supplied to the motor.
• PWM is a method of controlling the amount of power delivered to a load without changing the voltage level.

• In VFD, PWM is used to control the speed of the motor by varying the width of the pulses of voltage supplied to the motor.

• The width of the pulses is control...read more
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Q1. Tell me about yourself.
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Q2. Notice period of my present organisation
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Q1. Site based question about TG Deck Slab, Ash Handling Package
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