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 need of air gap in expansion section in busbar?

3 6701

how to calculate power loss cost of aluminium conductor and copper conductor?500v,100A,68mm area squre busbar.

1 4021

what is the differation bewreen kwh & fundamental kwh in electronic trivector meters

2255

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

2041

WHAT IS THE REASON FOR THE GROUND PIN IS BIGGER IN SIZE COMPARING TO OTHER PINS?

13 16905

why in power staions distriution r like 11kv,33kv,66kv in india?

4 8314

why we using capacitor in single phase motor ?

14 20987

state the construction of incondenscent lamp?

2187

state the disadvantages of carbon filament???

2991

how we can know the rating of transmission line by no. of insulators disk ??????????

NTPC,

3 23184

how the phase convertor changes the no. of phases

2052

what you mean by current? what you mean by voltage? what is difference between star and delta connection in motor side?

Adani,

2 5991

how we can classify the circuit braker???????

1 4397

which seven wonders are selected in india in 2008-2009

2 4048

What are the rating wise protections required for Generators from 600KVA to 2000KVA

3 5211

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Un-Answered Questions { Electrical Engineering }

what is the thumb rule for determination resistance of resistor?

2366

what will happen if OLR CT in all phases are short circuted

2279

Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

5157

What is the difference between Droop vs Isoch Control?

2477

How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?

5456

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

1250

how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

2145

We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

1712

What is the need for a controller?

1280

What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1955

Define the three phase formula fuse.

1924

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

2041

What is the formula to calculate the size of Aluminium and copper cable?

1997

What is the difference between solid grounding and impedance grounding?

2195

What is lighting kitts.

2166

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