Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the deffrence between Siemens S7-300 & S7-400 PLC?

ADC,

4 30806

Which Programming software are use for Allen bradley PLC's?

ADC,

16 22462

what is the difference between ac and dc generator

14 38063

what will happen when choke in tube light circuit was not working???

7 14865

what is the use of starter in tube light?and what it contains

L&T, RRB,

12 46181

How to calculate the transmission losses incase of overhead transmission lines?

Jindal,

6 11425

what is the different between second harmonics and third harmonics ?

1 3860

what is advantage in open delta connection?

20 66881

why are we maintaining some specific gravity in battery ?

5 7390

how do you test the capacitor bank ?

Essar,

12 34691

what is the procedure for cable sizing or on what basis we will calculate the size of cable?????

ANG, Focus, Mecon,

6 19444

How to take vector group test for Ynd11 transformer.

Voltech,

2 12772

How silicon gel sucks moisture in the transformer, its have any small exaust fan behind silicon gel.

4 6066

what is the function of starter & choke in the tube light set & how choke give 1000 volts while switching on.

ADNOC Abu Dhabi National Oil Company, IBM,

14 81884

How transformer winding & oil gets heat.

3 5729


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Un-Answered Questions { Electrical Engineering }

lamination figures

1377


how invertor convert the dc into ac give brif detail

1513


In the magnetic fluxes, what is the role of armature reaction?

659


As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1360


what is the illumination level required for child play area?

1593






why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1338


what will happen if i connect 12 volt battery with 24 volt battery charger.

1429


The moisture in air will condense at

656


Is vtg is controlled by the resistor? if else how much?

1625


how to select the isolation tranformer for siemens 802dsl cnotroller

1576


In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?

1444


what is diff. between earthing grid,earthing mess, earting grid?

1830


why do we put a transformer on soak before loading it

615


Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

1577


Why can't we parallel Voltage transformer secondary circuits?

948