Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Send the control circuit digram of a star delta stater?

L&T,

1 6292

what is distribution board and panel board

3 17063

how the ac voltage are selected like 220v,415v,750v,1000v& 1.KV,6.6KV,11KV,33KV,66KV,132KV,220KV & why these are selected like these orders

Jindal, JSW,

2 9445

Which one is correct mVA or MVA. Whether both the units are same for the transformer

Areva,

10 16049

how c-curve of mcb's actually looks alike?

1940

Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

2093

How do you commission a power Transformer?

EEI,

1 9649

Why alternators are designed at 0.8 pf lag?

3 7573

In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?

1 3796

What is the difference between IS:1554 (Part 1)/1988 & IS:694/1990 ? What do these two standards specify about?

2 21199

what is use of starter motor in DG ?

2 16441

which type of motor is used in automatic swing gate

Sail,

2011

how much excitation voltage required to generate 1mw power?

Saudi Oger,

2046

define excitaton voltage and excitation current?

Allied Group,

2 33858

define stator,rotor,excitor,rotating rectifier in generator?

Saudi Oger,

1 14188

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Un-Answered Questions { Electrical Engineering }

What is servo motor? what is its purpose?

2055

what is meant by moulded case circuit breaker ?

2183

What is the difference between the transmission line and distribution line?

1166

Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

1818

diameter of cable and core is doubled then the value of capacitance is

4298

give me atleast four differences between circuit and network

2178

How RTCC panel is working and give single line diagram for RTCC with transformer?

3110

what are carbondioxide and dcp used in fire extinguishers

2055

What are the types of control system?

1428

Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

1958

how ct burden,magnetising current,ratio and knee point voltage are related & derived

2197

can some one clearly explain why -48 volt DC use in telecom site????

1691

If a high resistance fault occurs,then what are the changes will happen in the system?

1463

What is the difference between a verilog task and verilog function?

1297

What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

3650

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