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Common Interview Questions for Electrical Engineering Polytechnic Students
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0
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2104
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August 23, 2024
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Electrical Equipment Size Calculation
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0
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2103
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November 14, 2024
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Can an ungrounded outlet be replaced with a GFCI without grounding?
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0
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2103
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May 16, 2024
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When is a Disconnector placed between 2 Circuit Breakers in a Substation?
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0
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2101
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May 21, 2025
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Substation Interview Question and Answer
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0
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2091
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December 17, 2024
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Step-by-Step Guide for Choosing the Right Electrical Cable
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0
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2088
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November 22, 2024
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What are the key factors that determine the power requirements of an electric motor?
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0
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2088
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August 8, 2024
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Why is copper wire preferred over other types of wires?
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0
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2086
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August 5, 2024
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Difference Between a Contactor and a Relay
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0
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2075
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April 24, 2025
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Understanding the Two Essential Types of Grounding: PE vs. FE
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0
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2070
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December 8, 2025
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What function does backfill material perform in the copper earthing electrode installation process?
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0
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2062
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September 19, 2024
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Why Interlocking used in Electrical Panels?
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1
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259
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July 9, 2026
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Explain the difference between volts and watts
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1
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1456
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September 13, 2021
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How does 3 Phase Changeover Switch Work?
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0
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2053
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July 18, 2025
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Circulating Current Differential Protection
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0
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2051
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April 7, 2025
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How does the QF switch protect the VFD system?
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1
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1449
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August 19, 2025
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What are the benefits of using surge suppression devices for protecting electrical systems? How does Energy Control System's solutions help in preventing power surges?
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1
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1448
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October 6, 2024
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How To Read MCB Nameplate Rating?
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0
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2050
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October 8, 2024
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What is a Shaded Pole Induction Motor?
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0
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2043
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May 29, 2025
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Why capacitor allows AC to flow through it and blocks DC
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1
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1441
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October 2, 2021
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What is an Intertrip?
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0
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2038
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May 12, 2025
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Is it safe to use copper wire as an earthing electrode when connecting the main line to an earthing transformer?
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1
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1437
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July 11, 2024
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Why Is A Power Plant Capacity Rated MW & not in MVA?
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0
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2026
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October 16, 2024
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Comparison Between Low Voltage (LV) and High Voltage (HV) Power Cables
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0
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2025
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July 30, 2025
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Why Overhead Transmission Conductors are Stranded?
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0
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2018
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May 13, 2024
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What is the significance of gain and phase margin?
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0
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2011
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September 26, 2024
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BHEL Electrical Interview Questions
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0
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2000
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July 30, 2024
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Why Neutral Cable Size is Half of Phase Cable?
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1
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1414
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July 9, 2025
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How can a VFD can control the speed of a motor
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1
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1407
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June 23, 2021
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Simplify MOSFET Test With Source Measure Meter
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0
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1988
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November 17, 2023
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How does the Armature Current in a Series Motor change with Speed?
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0
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1982
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April 29, 2024
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What is cause of low power factor?
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0
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1978
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November 19, 2024
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How Germany is Turning the Ocean into Electricity with a Smart Seawall?
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0
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1976
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July 22, 2025
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How to step down a DC variable input to steady DC outputs?
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1
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1384
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July 17, 2021
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What is the 80% rule for transformers?
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2
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1129
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June 6, 2026
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What are the control methods utilized by variable frequency drives (VFDs) to regulate motor speed effectively?
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0
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1949
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May 3, 2024
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Partial Discharge Measurement (PD Measurement)
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0
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1948
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December 10, 2024
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What is SF6 and why is it utilized in Circuit Breakers?
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0
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1944
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April 19, 2024
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VFD Troubleshooting
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0
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1939
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May 2, 2025
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What are the safety requirements when working on electrical equipment?
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1
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1369
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July 12, 2024
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What is the function of distance relay in auto reclosure?
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1
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1366
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May 16, 2025
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What is the difference between neutral and earth and ground?
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0
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1931
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March 6, 2025
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How to Convert Single-Phase to Three-Phase Power?
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0
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1932
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September 12, 2025
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In power transmission systems, what factors contribute to the significance of DC voltage batteries?
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0
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1929
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December 21, 2023
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How to troubleshoot a crane starter motor fault?
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1
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1363
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July 6, 2025
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What is a transformer differential protection
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1
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1357
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September 9, 2021
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What is Voltage Regulation? How to Calculate Voltage Regulation?
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0
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1919
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March 21, 2025
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What is Transformer Impedance? What is the Percent Impedance (% Impedance) of a Transformer?
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0
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1917
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April 18, 2025
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Synchronous Machines Q&A
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0
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1914
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October 23, 2024
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Is it possible to operate earthing and arrester together?
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1
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1354
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July 27, 2021
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