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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why we use ups battery and dsdb battery in thermal power plant

MDeC,

2041

I had finished D.E.E.E at 2004,I wish to take C license.I am working pvt company HT supply but my professional certificate was missing.I have diploma & course completed certificate.without professinel may I got c license?.pls guide me.

OEG,

1 3202

difference between converter and invertor

2 5369

Can I use star delta connected induction motor for dual supply voltage?

1916

What is the physical significant of power factor?

Cooper,

1881

what is the significant for using two types of voltage(line voltage & phase voltage)

NTPC,

1 3579

How to calculate the cross section area for a 350 m cable, motor power is 26 kw???

Orient,

1 4840

what happens when a dc shunt motor fed with an alternating suppy ?

1 3920

What is the formula to calculate distribution transformer De-rating on iron losses basis

IESCO,

1805

Dear All, Can anybody please tell me which value(saturated or unsaturated) of sub-transient reactance(Xd") we take for the calculation of fault current of the system?

2 6380

Petroleum jelly is applied to the terminals of the lead acid battery is to prevent?

KSEB,

2 6949

In a Capacitor the electric charge is stored in:

TELK Transformers And Electricals Kerala Limited,

2 5229

Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380votac 50hz is this harmful for moter winding

Infosys,

1 5802

what happen if the battery is charged by more than one source ,for ex: connecting data cable to laptop & charger pin to source supply ? 

2 4519

When testing an earthing connection, we use a 60 or 100 candle bulb with a phase connected direct from supply and the other wire to the new earthing provided.If the bulb glows then the earth is ok.Else earth connection is not Ok. So, why dont we can use all the home appliances taking a single wire from the phase and the return connection to Earth instead of return connection to neutral?

2 4392


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the effect of un-synchronized power.

2004


how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com

2852


Draw torque - speed curve and load curve of induction motor? mark operating point ?

2009


If o/p power is doubled by how much does the sound increase

1047


If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

2081


1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2509


what are your career plans upon completion of the programme and the relevance of recity generation to your professional development?

2179


what is the size of ht cable of 33kv ht line and transformers ratings are 1 Mva and 5mva.please send formula also.

1401


What range of speed can you get with the armature control method of speed control of d.c. Shunt motor?

1088


what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1634


from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

1985


What is the use for cable entry in control room?

1133


What is Control & Relay Panel? And Remote Control Center?

2184


Is neutral transformer can be called as control transformer?

1928


in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter

2178