[BEST] Electrical Interview Questions and Answers

Electrical Interview Questions

Are you an Electrical Engineering Student? Are you looking for Electrical Interview Questions? We have a lot of electrical interview questions for you.

If you are preparing for an interview then you must read our questions and answers. Here you cannot find short answer type questions, you will find only long answer type questions. If you read these long answer type questions then you will able to give the answer of short answer type also. Of course, we will bring a collection of MCQ and Short answer type questions for you.

We always try to give the main basic concepts of any topic which is most important for you. If you have clear basic knowledge in electrical engineering then your future will be bright. You are also able to give the answer to any question in any interview.

Mainly in the Technical Round of an interview, the questions from electrical engineering to be asked to you. I have noticed, in fact, that most of the industrial experienced person says that mostly the basic questions are asked in interviews.

So, here is a list of Electrical Interviews Questions is given below for you. We will keep updating the collection of electrical questions, so keep visiting to get more questions. If possible bookmark the link of this post in your browser.


Here we have given electrical interview questions from each category together like Electrical machines, transformers, Generators, Motors, Electrical Circuits, etc.

List of Electrical Interview Questions:

(1) What is Electric Shock, What causes an electric shock Current or voltage? Read Answer


(2) Why we use 220V, 50Hz AC at home instead of DC or other voltage? Read Answer


(3) Which is more dangerous AC or DC? Read Answer


(4) What is the main difference between AC and DC? Read Answer


(5) Say some difference between the properties of Resistor, Inductor, and Capacitor. Read Answer


(6) What is the difference between Electrical Circuit and Network? Read Answer


(7) What is the difference between a Conventional Capacitor and a Supercapacitor? Read Answer


(8) Is Transformerless Power Supply Safe for Us? What is your opinion? Read Answer


(9) Why Transformer Cannot work on DC Supply? Read Answer


(10) Can DC Motor run on AC supply and Vice-Versa? Read Answer 

(11) Why the Transformer is Rated in KVA, not in KW? Read Answer



(12) Why the Capacitor is used with Single-phase Induction Motor? Read Answer


(13) Why Single Phase Induction Motor is not Self Starting? Read Answer


(14) What is the main difference between Generator and Alternator? Read Answer


(15) Why starter is needed for starting of Electrical Motor(both AC and DC)? Read Answer


(16) Which side of the Transformer is provided for Tapping and Why? Read Answer


(17) Say some application of each type of Motors. Read Answer


(18) Say some applications of each type of Circuit Breaker. Read Answer



(19) Why Alternator Armature Winding always connected in STAR? Read Answer


(20) Can we use a Step-Down Transformer as Step-Up Transformer? If yes then How? Read Answer


(21) What happened if we connect Ammeter in parallel and Voltmeter in series? Read Answer


(22) Why electrical Choke is used in Fluorescent Lights? Read Answer


(23) Which gas used in Incandescent Bulbs and Why? Read Answer


(24) Why secondary of Current Transformer(CT) should not be Open Circuit? Read Answer


(25) What is Single Phasing? What is the effect of Single Phasing? Read Answer


(26) What is the Actual Difference between Synchronous Motor and Induction Motor? Read Answer


(27) What is the difference between earthing and grounding? Read Answer


(28) What is the use of Neutral Grounding Resistor(NGR)? Read Answer


(29) What is the right sequence of opening and closing Isolator, Circuit breaker and earthing Switch? Read Answer



(30) What is the use of Stepper Motor? Read Answer


(31) Why Current, Voltage changes But Power, Frequency constant in Transformer? Read Answer


(32) Why capacitor is connected in parallel not in series for Power Factor improvement? Read Answer


(33) Why DC is used not AC for excitation of Synchronous Alternator and Motor? Read Answer


(34) Why Damper Winding is used in Synchronous Alternator and Motor? Read Answer


(35) Why Three Phase Induction Motor Self-Starting but Synchronous Motor not? Read Answer


More Questions and Answers will be added soon..........................


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