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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How are calculated the aluminium busbar cross section area?

2 9537

Are same transformer be employed for step up and step down services?

3 6065

On what basis primary and secondary of a transformer is chosen?

2 5270

how to male a d.c bettery to blow a 230v bulb?

1 4386

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 7983

How to protect the water pump by no load running.

Cushman Wakefield,

9 14189

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 4383

In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 4264

In UPFC,What is the need for Dc link ( DC capatior)?

1 5138

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 3239

why microprocessors are named as 8085 ,8086 etc? what's the reason for this???

Bhel, HCL,

15 44822

what is basically a pulse transformer?

1 9094

what is relay multiplier

Atomic Energy Commission, Bhel, Wipro,

1 6378

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 5437

SSC JE ELECT.

CPWD, SSC,

1 19331

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Un-Answered Questions { Electrical Engineering }

Differentiate between induced emf and self inductance?

1150

whatis the commertial spec. of distribution boards ?

2075

How to decide cable tray size?

1140

Whether the vacuum contactor requires Short circuit protection?If No,why?

2044

i have a 1500kVA transformer what is the kWH meter i need to use?

1789

What conditions are required for transformer to operate at low frequencies ?

2006

What is the basic principle of welding process?

2147

how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1946

what is inverter and converter

1921

how does commutator convert a.c to d.c?

2201

What is the purpose of stand by earth fault protection for transformer ?

2084

why current flow to the opposite direction of flow of electrons???????????

2164

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

2201

Block diagram of Power line communication?

2324

How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?

1805

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