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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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

MDeC,

2091

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 3278

difference between converter and invertor

2 5466

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

1949

What is the physical significant of power factor?

Cooper,

1924

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

NTPC,

1 3645

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

Orient,

1 4903

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

1 3990

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

IESCO,

1844

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 6522

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

KSEB,

2 7050

In a Capacitor the electric charge is stored in:

TELK Transformers And Electricals Kerala Limited,

2 5325

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

Infosys,

1 5896

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 4630

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 4498

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

2665

why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

1939

What is the most essential condition for the voltage build up for a d.c. Shunt generator?

1151

I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

1924

if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

1905

defination of transistor controlled series capacitor

2636

What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

2044

Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

2084

iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?

1926

What is the function of the circuit breaker failure relay?

2377

Can you explain about Restricited earth fault protection scheme

1854

grr resistance & contrator malt continuous

2153

Igfet is a

1639

Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

1666

How the over load setting for HT Motors calculated-provided in Numerical Relay

1814

For More Un-Answered { Electrical Engineering } Questions Click Here