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 earthing transformer used in Distribution Sub-Station?

3 12434

how to calculate the voltage drop in electrical cable while laying cables?

2 5742

when ur using single phase type of load for a 3.5core power cable .Why neutral is .5 and how much current in the neutral if we consider neutral as a reverse path for three phases.

2 5747

what is the working principle of dc motor & its application ?

3 7964

what is the difference between brush & brushless dc motor explain its operation ?

1 5748

What is partial discharge in power cable?

1 3347

why rating of motor in HP ?

2 5862

following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

2119

Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection

8297

how to calculate cooling requirement of datacentre from electrical load?

2490

Is any generator is developed which is operated with out diesal or other expensive source?

2150

In a house wiring why we are using only one neutral wire and so many phase wires from the main board, when the load is common for both wires?

3 17170

plz tell me Motor IP formula

2058

plz tell me about detailof induction motor Slip

2 5076

plz tell me about BACK emf and how it generates?

2 5659

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

2156

For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1960

How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1665

Why a tesa lamp is glow between two phase?

2059

how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me

1495

Pleae send me last 5 years of Question book about RRB chennai.

2355

Usage of flywheel diode in relays

1995

how to calculate power consumption in slip ring motor at different step

2303

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

1716

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

2235

please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

2322

Type of motor stater detail and working detail

1719

Explain what is electric traction? Explain few advantages of electric traction system?

1252

11000volt DG set carnt kaise banvay

1733

How to check the LM324 Ic

8530

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