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 we can calculate cable size of 230v,1 hp single phase motor ? panel to motor distance is 25 meter

4 18064

In induction machine when the load increase the current will increase .why? what is the relation ship between the sleep and current drown by stater?

1 2813

can we run a motor rated 50Hz,415vac,1440RPM At higher speed then rated on name plate with the help of VFD /drive on long term basis.wheater it will effect the motor life

3 7027

In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

1 9433

How wire size can define in electrical wiring? What is the ratio?

Descon,

2308

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

1946

WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 8610

IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

10 28540

why reactive power produce in generator? why inductive load absorbe reactive power?

2 6233

what happen if generator exitation lost?

7 13283

what is the basic paramter to set a electric drive

Alpha,

1 4065

what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1933

if a number of plc s are there then how many modbus to be used

1966

1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

1 4363

what is the per unit cost of generation of electricity at thermal,hydro,desael,solar,gas power plant

1 4414

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Un-Answered Questions { Electrical Engineering }

What is the limitation of kirchoffs law?

1138

Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?

2110

why moisture formation found in XLPE Armoured cable outer sheath

1818

Usage of flywheel diode in relays

1931

Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm

2187

How many kw will suply from one db

1571

i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?

2206

HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....

2096

give me atleast four differences between circuit and network

2182

how to compute kvar in substation feeder to improve power factor and sending voltage

2149

What is speed mode?

1722

please describe the Transformer setting, Motor setting, I/C setting, Tie setting

1781

How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

1927

why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

1736

What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

2365

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