Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between hot and cold loop testing?

705

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.

711

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

723

how the aircraft outer body and inner body is separated ?

669

how the inner and outer body is separated in aircrafts?

638

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

1 9416

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

611

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?

3306

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

679

What is the difference between DOL starter and star delta starter

618

electrical knowelge

772

What is resistance reading of earth copper rod with grid and without grid?

685

A 230 v dc series motor is connected to 230 V ac supply, then

1 1203

What is various types of electrical formula?

1 1100

How many gap between finger contact in a.c.b. and v.cb.?

775


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1600


How CFL &T5 tube light glows?

1640


How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

1346


How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

1513


As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

1469






Explain what is rated speed?

712


what will happen if frequency is below 50 hz?

1608


What is George phenomena to start the synchronus machine?

3681


Write down the name of 2 lady Bir Pratin of Bangladesh

1514


sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used

1446


Control cables in S's will carry 1000v which is AC R DC? Pls answer meĀ 

1644


How to discuss the phase shift of transformer considering open delta?

1005


why r we using shell transformer for low voltage

1572


How to Calculate KA Rating of Main LT Panel

1216


What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

1676