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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

While testing LA mast,What are the parameter limits ?

TATA,

980

what is the difference between PLC and embedded system

3 20045

why near the transformers, the Jelly(small white colored rocks)are poured.and what are conditions for that?

3 3665

Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

Hexaware,

1 1531

what is mean by PID & Principal of working

6 10987

WHAT IS THE FUNCTION OF RCCB

2 4006

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

Suzlon,

1 3801

If one lamp connect between two phases it will glow or not?

9 21661

WHAT WILL HAPPEN IF INPUT SUPPLY OF RCBO IS CONNECTED TO OUTPUT SIDE

ABG Shipyard,

2 3881

what are the ratings of sockets?

L&T,

10 10535

what is the difference between inductive load and capacitive load?give me some examples in general

3 14365

what is load vs Torque curve & why it is used?

1078

1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?

1809

What is the Difference Between MCCB & ACB & VCB

ABB,

4 6186

What is the Difference Between choke & ballast

ABB, ICS Integrated Computer Solutions,

3 21791


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Un-Answered Questions { Electrical Engineering }

Write a note on materials used as a fuse element.

1251


there are cam operated switches - why we call cam operated , What is cam ?

998


What is the approximate value of stacking factor?

163


what type of questions are asked and howmwny questions belong this catagory?

1173


What is the difference between a verilog task and a verilog function?

188






What are the commonly used schemes for the bus zone protection?

151


How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9

1081


Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

1157


What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?

1178


how give earthing conection to household equipment?

1013


Why PS class CT is always preferred for Differential protection?

609


how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

893


Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

763


How many types of losses occur in a transformer?

155


Why High voltage are generate noise ?

447