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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is dc induction motor ? and how to control its speed ?

HAL,

1 2771

difference between crane drive and line drive.

929

can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

2229

why we use tapechanger in primary side of transformer

Bhel, L&T,

5 6525

two bulbs of 100w and 40w respectively connected in paralel across a 230v supply.which bulb will glow bright and why?

4 9986

What is the function of RCBO? What are the different sensitivity ratings & each application?

L&T, Legrand,

1534

derive the formula of amp hours is calculated for 12v battery.where no. of plates is given

1 2108

I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

975

Why should we use jelly filled armoured cables in underground Communication system? What is the use of the Jelly? If we go for unarmoured, then what happens?

Prasad Group,

1 2422

What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

1327

Dear all i want to know FEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me shibin_75@yahoo.com

FEWA,

9703

what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

2163

what is battery impedance testing and how we perform this test with four wires.

Etimaad, MRF,

1 3869

ALONG WITH MEGGER TEST FOR CHECKING OF MOTOR ,WHY WE MEASURE FOR RESISTANCE AND INDUCTANCE?

L&T,

4 6692

what is the function of supervison relay?Draw its wiring diagram.

IBM, R.R. ISPAT LIMITED,

2 5232


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Un-Answered Questions { Electrical Engineering }

what is kvarh? Please define it With calculation General motors ?

201


What is effect of over voltage and under voltage on ACB

937


What are your future plans for the company if permanently employed?

1213


What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

2437


How much minimum insulation required between 11kv/3.3kv transformer windings?

1449






aternator every parts and its working

597


where the lexical paramater will use in fron end?

962


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

740


What Should be the value of Vector Surge angle at Tripping and how to calculate it?

1123


what is the control circuit for operating the clean room air shower

1205


If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

1073


On what basis the the size of Lightning arrester for buildings are selected ?

651


CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

1493


What is the efficiency during maximum power transfer?

173


How to calculate Temp from Resister from PT100 equation,

660