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 to calculate cable size in HT AND LT

Apollo, JSKE,

2021

Ht panal kia hota ha?

1 2705

What is the Working principle of ELCB and RCCB?

Geo Miler, L&T,

1 3004

Why is the neutral point of a star connected winding of a motor not grounded?

1 3181

What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

1881

How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

Dhanam Enterprises,

1663

why we not use capcitor in Three phase motor ??

GOMS, Power Electronics,

2 3343

What is the difference between PT for metering and PT for protection ?

Dewan Cement,

3 11040

What does dny11 stand for?

Cenored,

5 8590

Ac generato how produce power I need for camplet defination

KCL,

1762

How to calculate the 2500 Kva Transformer losses Primary 11KV Secondary 415volts

Laurus,

1 4737

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5061

1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1789

How to select the proper VSD to operate high inertial load

1736

what is the harmonics? which harmonics(fundamental and reference) is suitable for calculating capacitor bank and Active filter and passive filter? what is the 1st 2nd 3rd 4th 5th harmonics and effects?

1 2452

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Un-Answered Questions { Electrical Engineering }

what is the use of expulsition protective gap in 11Kv line.

2130

We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

1984

Why is back emf used for a DC motor? Highlight its significance.

1209

what is the voltages using in movie theaters??? why ??why not other??

2299

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

2045

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

2096

how to revers the direction of single phase motor

961

what is gas turbine intercooling ?

2110

state types of reflectors in illumination engg. ???????

1937

Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?

2336

I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

2184

how to measure earth resistance of a substation

3324

How Calculet The UPS AH In Load

1897

As an electrical engineer what are the responsibilities which i can hold in TCS?

2208

EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.

2030

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