Questions – Answers
Electrical and Electronics Engineering Interview Questions and Answers
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Why is the Long Prong Neutral Instead of the Narrow Prong?
Why is the Wide Prong and Slot Designated as Neutral Instead of the Narrow Prong and Slot in a Plug and Outlet? Engineers typically avoid making arbitrary choices when designing…
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Why is the Neutral Prong or Slot Wider on a Plug or Outlet?
Why is the Neutral Prong and Slot Longer than the Hot Prong and Slot on a Plug and Outlet or Receptacle? Although the electrical power supply and distribution system in…
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Why are there Grooved Slots in the Pins of Two Pin Plugs?
Why are the Pins are Slotted in the 2 or 3-Pin Plugs? Threaded slots are commonly found in Type A, Type B, Type C (Europlug), Type E/F, and Indian standard…
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Is It Dangerous to Carry a Battery in an Elevator?
Does Carrying Large Rechargeable Batteries in a Lift Pose a Risk? A viral video shows a man carrying a lithium-ion battery that suddenly explodes in his face after he closes…
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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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