Questions – Answers
Electrical and Electronics Engineering Interview Questions and Answers
-
Why Use VCB Circuit Breakers in HV Transmission, & Not ACB?
Why are VCB Circuit Breakers Preferred in High Voltage Transmission Systems Instead of ACB? What is an Air Circuit Breaker (ACB)? An Air Circuit Breaker (ACB) is a type of…
Read More » -
Why is the Position of Overhead Conductor Exchanged in a Transposition Tower?
Why are Overhead Conductor Positions Exchanged in a Transposition Tower? Electrical energy is transmitted in high-voltage three-phase lines without a neutral (3 conductors). Over long distances, these lines develop reactances,…
Read More » -
Why is Live Line-Washing or Cleaning Done on Energized Power Lines?
Importance of Live-Line Washing, Live-Line Maintenance or Cleaning What is Live-Line Washing? Live-line washing, also known as live-line maintenance or live-line working, is a technique used in the maintenance of…
Read More » -
Why Does the High-Wattage Bulb Glow Brighter in a Parallel Circuit?
Why Does a High-Voltage Bulb Glow Brightly When Connected in a Parallel Circuit, While a Low-Voltage Bulb Glows Dimly in the Same Circuit? Three light bulbs are connected in a…
Read More » -
Why Does the High-Wattage Bulb Glow Dimmer in a Series Circuit?
Why Does a High-Wattage Bulb Glow Dimly When Connected in a Series Circuit, While a Low-Voltage Bulb Glows Brightly in the Same Circuit? Three light bulbs are connected in a…
Read More » -
Will I Get an Electric Shock If I Touch the Ground Wire?
Is It Harmful to Touch the Grounding Wire? What is the Ground Wire? A ground wire, also known as an earth wire or grounding wire, is a wire in an…
Read More » -
Can the Neutral Wire Cause Electric Shock? Different Cases
Will a Person Get an Electric Shock If He Touches the Neutral Wire? What is the Neutral Wire? The neutral wire is a conductor that carries current back to the…
Read More » -
Will a Man Get an Electric Shock If He Hangs on a Live Wire?
If a Person Grips a Single Live Wire with Both Hands, Will They Get Shocked? If a person hangs onto a live wire with two hands and does not touch…
Read More » -
Why is a Capacitor Needed for a Single-Phase Motor?
Why is a Single-Phase Motor Not Self-Starting? Necessity of Capacitors in 1-Phase Motors A capacitor is required for a single-phase motor to provide the necessary phase shift to start the…
Read More » -
What Happens When Aircraft and Plane are Struck by Lightning?
Do Aircraft Ever Get Struck by Lightning While in Flight? If So, What are the Consequences? What Happens When a Plane is Hit By Lightning? Lightning strikes on aircraft are…
Read More »
