Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between hot and cold loop testing?

42

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

37

What is the effect of electric motor stuck in star configuration,

53




how the aircraft outer body and inner body is separated ?

29

how the inner and outer body is separated in aircrafts?

27

Why we use d.c. meger in a.c. induction motor?

1 86

What happens to a motor if it is connected in Delta connection

20

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

873




what is the range of maximum DOL and SDS can be use for pump and fan application

33

What is the difference between DOL starter and star delta starter

28

electrical knowelge

23


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Un-Answered Questions { Electrical Engineering }

How to calculate multiplication factor in kva example 500kva ans pls ?

640


How to set the relay,,??

1051


What is the difference between Delta & Wye windings?

1004


Why is the starting current high in dc motor?

50


dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

377






Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

1162


What is bridge rectifier and explain with details

921


can any one suggest paper presentation topies for electrical engg?

933


how do we calculate length of starting time and repeated starting of a direct online starter?

988


The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.

893


What is the normal phase difference between the voltage and the no-load current in a transformer?

67


The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.

920


What is electrical diversity factor in electrical installations?

62


what happen ehen synchronisation is done at below rated speed

975


in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

1829