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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the use of choke in tube light?

5 10996

What is Creepage distance?

1 3723

the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

2279

transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

Bhel,

2097

1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

Automation, Indian Railways, Mogora Cosmic,

2 11188

why only violet glow appears in corona effect?

1 5482

can any one explain me the where is the use of plc and scada

4 6550

What are Contactors? How they works and what its highest rating?

2144

I HAVE A 1 MVA TRANSFORMER, I WANT TO KNOW THE FAULT LEVEL OF THE SYSTEM ( WHAT IS FAULT LEVEL PLEASE EXPLAIN WITH EXAMPLE)

Alstom,

5 24027

could any one explain me what power factor and where it is use ful

3 5408

i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

2014

WHAT IS TANK CKT.?

4 8425

HOW MANY TYPES OF FUSE?

2097

what is the purpose of vector group in a transformer ? if 2 tranaformers r connected in parallel the vector group is same or not? for parallel operation 2 transformers of different manufacturers maintain same vector group or not?

Orchid,

3 14192

what is the main purpose of line PT and bus PT?

L&T,

11 82649

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Un-Answered Questions { Electrical Engineering }

block diagram of 2 ups system connected in parallel mode?

2080

what material is the electrical housing wire made of? is there any difference for the telephone lines?

1970

How much load can take a 16 mm aluminum cable 3 phase

1748

why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

2099

we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit

1920

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1954

what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

2035

Difference between control junction box (cjb) and power junction box(pjb)?

4338

Mention the disadvantages of low power factor?

1131

What is the function of electron gun used in crt?

1062

How they LT panel busbar size choose

1693

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

2216

1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1982

what are safety measures in /control in diesal engine/ explain them?

1789

Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

2153

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