Electrical Engineering Interview Questions

what kind of motor is used for lifting applications

6286

what is the magnitude of earthing and neutral voltage

3784

How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

6192

How to calculate meter constant @ HT yard

10356

in ac system the current wave form becomes zero for every half cycle then how can we get continuous supply can any one answer to this plsss

4278

Difference between On Line capacitor and Station Type capacitor.

1672

How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

1759

why rating in KVA and KVAR?

7530

Ho de we calculate the line loss of a 500 kv line over 1000km.

2670

will the introduction of capacitor bank parallel with the induction load reduce power consumption

7967

if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

1439

I have CNC Turning lathe,while doing electrical preventive maintenance what should I do & please brief me plan & shedule for the same.

3575

If current and resistance in a circuit is increased by 20%, what will happen to its voltage drop??

5478

Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

1774

Should transformer earthing pit, to be connect to earthing mat in Substation

9157

Un-Answered Questions { Electrical Engineering }

The moisture in air will condense at

720

How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

3718

1520

Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1244

The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

653

Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

1685

what is mean by transition resistance of transformer?

4010

can some one clearly explain why -48 volt DC use in telecom site????

1271

1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

2497

what is the path of thunderlightening? once both a buffalo and a person were standing 5m apart but lightening hit and killed buffalo not person?

2482

What is relation between transmission lines & Communication lines ?

1737

On what principle electric motor works?

736

Why HT 11 KV Slipring Motors are connected in star ?

1818

The screw thread commonly used for transmission of motion is one of the following types of threads

735

what is the condition for YnD11

2138