Questions – Answers
Electrical and Electronics Engineering Interview Questions and Answers
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Why Doesn’t DC System Require a Grounding System Similar to AC System?
Grounding System in DC Power Supplies and Network – Advantages and Drawbacks Actually, grounding and earthing are not required for either AC or DC systems to function. However, grounding via…
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Why Do Americans Use Gas Kettles Instead of Electric Kettles?
Why Do People in the US Primarily Use Gas Stoves for Boiling, While Electric Kettles Are More Common in the UK and Europe? Americans tend to boil water on gas…
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What Will Happen If You Connect a Male-to-Male Plug Between Outlets
What Would Happen If We Connect a Male-to-Male Plug Between Two Electrical Outlets or Sockets? A double male or male-to-male plug or extension cord is a cable with two male…
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Why Does Japan Use Both 50Hz and 60Hz in Its Power System?
Why and How Does Japan Use Both 50Hz and 60Hz Frequency in its Electrical Power Systems? Japan uses both 50Hz and 60Hz power frequencies due to historical and logistical reasons…
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Is It Possible to Get Electrocuted by an Electric Vehicle?
Can an Electric or Hybrid Vehicle Electrocute You in Water or During a Crash? Electric vehicles (EVs) such as cars, scooters, bikes, and even trucks are expected to dominate roads…
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Why Do LED Indicator Lights Glow Even When Switched OFF?
Why Does the Indicator Light in Some Electrical Appliances Not Turn Off Immediately After the Switch is Turned OFF? You may have observed that when the supply to certain electrical…
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What Happens if a Power Line Falls into the Ocean Water?
What Happens if a High-Voltage Power Line Falls into the Ocean, or a Battery or Toaster Comes into Contact with a Bathtub or Seawater? The interaction between electricity and water…
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If Lightning Strikes the Sea, How Far Away is it Dangerous?
How Far Away Can a Lightning Strike Cause Damage or Death to Swimmers in the Ocean? Lightning strikes are among nature’s most powerful phenomena. However, their immense energy and unpredictable…
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Why Do Tanker Trucks Have Chains Hanging at the Back?
Why are Metal Chain Dragged by Petrol, Oil, and Fuel Trucks? You may have noticed gasoline trucks trailing a metal chain or discharge strips. While they may not look appealing,…
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Why You Should Never Buy or Use Male-to-Male Extension Cords
Why You Should Immediately Stop Using and Never Consider Male-to-Male Extension Cords What is a Male-to-Male Extension Cord? A male-to-male extension cord is a cable with male (pronged) plugs on…
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