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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How much water ( Kilo Liters) a submercible pump of 35 HP can lift from Borewell of 6" and 900 feet dip.

2 4309

ELCBs are installed for protecting humans from AC leakage current.Is there a device which protects humans from DC Leakage current??e.g.leakage from batteries...If not,then why so???

1 1996

How will polarity test of Dy5 transformer ?

BSL,

2 7208

what does a k rating in a transformer means?

1866

For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.

1497

principle of power export and import in captive power plant.Is it depends upon voltage,current or frequency?Plz explain briefly.

1 3079

if the length, number of turns and area of coil are doubled then inductance of the coil becomes.?

1 3915

the circuit having same properties in either direction is known as.......

2 6897

the typical output of a solar cell is........

1673

which of the following can produce maximum induced voltage..... (a)1amp dc current (b)50amp dc current (c) 1amp 60 cycle ac current (d)1amp 490 cycle ac current.

2 6620

all types of electrical quations

1 3403

if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?

3 4516

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1526

why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

L&T,

1 2771

what meant by Locked Rotor Current ?

2 3488


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Un-Answered Questions { Electrical Engineering }

why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1314


how does a submersible pump work..?

1288


we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1320


i have interview in Pepsi company what type of question will ask please send the question and answeer

2787


How many turns are there in primary winding? (In Transformer)

1064






what r the checklist while installing a 380 kva DG set

3167


why use phase displacement in transformer.and effect of phase displacement on transformer

2171


how is control wiring coding is done in a CRP panel ?

1361


what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

6842


What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?

1294


Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

2383


how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

1169


What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

2281


1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

1360


what is the working principle of a DG Set, Alternator, & exiter

9536