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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

wath is skin effect?

9 7375

How many earthing pits required for diesel generator set ? Why ?

1 7216

what is the fuction of electrical transducer in control pannel?

6 4666

which is batter in construction job,ELCB or RCCB?

HCC,

7 14635

whate is aelectrical power fector for exampal

8 8114

We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 6398

HOW MANY EARTHINGS REQUIRED FOR GENERATER

Juniper Networks,

10 13131

what happen when dc shunt motor field is sudden open in running condition

APGenco, Bhel, IIT, JMRC, TCS,

34 62577

if the magnetic lines can pass through a vaccuum area

1014

What Is Transformer Impedance ?

Con Edison,

6 12543

How conventional fire alarm system works?

1 1377

WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

ACC,

1268

how to choose the cable rating for load (KW)? EXAMPLE.50KW load

ACC, NCUI, Polycab, PowerSol, Siemens, SW,

14 159775

whats the diff b/w mpcb and mcb?weather it trips on single phasing or not.

Electra Power, Essar,

9 12898

what are the safety measure & controls in engine?

RRB,

2 4791


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Un-Answered Questions { Electrical Engineering }

How calculated single phase induction motor req. Capacitor?

691


why power not passes in plastic and rubber material

1130


model question paper for supervisor trainee

1171


Why different Pressure switch used in marine boiler water circulation system

882


State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

1620






how point on wave controller works.

1617


How do we calculate the Out put voltage of generator, after the excitation is being given?

1128


STATE WORKING OF VACCUM CIRCUIT BRAKER?

1101


should %impedance be high or low in a power transformer? if so why?

1085


how line turns ratio changes in 3 phase with change in connection

1033


I want single line diagram for AMF & DG syncronizing panel

6006


How we can come to know the substation range,without go through any name plate ?

1042


single phase power supply give to separate one steel coup with water, what reaction create

1159


how many types of motor can be used in washing machine

1259


Define noise?

242