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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is bandpass of a transformer?

2 5500

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

Bhel, Sail, Sterling Telecom, TCS,

15 45602

please send me the L&T Emb. sys. placement papers and entire details of pattren

HMM, L&T,

1665

Why we connect the capacitor in Delta?if we conect in Star what will happen?

9 28984

What is IGBT?Where it is used? What is the difference between IGBT and Thyristor?

AC, Formo Plastic, HBL Power Systems, SECL,

5 61776

What is mean by diversity Fator?

7 18471

can we use 220 volt 15 w a.c. lamp on 220 volt d.c.

Philips,

11 17823

Explain Clearly Pahase and Neutral?

7 9092

Why the Motor takes High Current in Starting time?

5 9932

What is the difference between Surge protection device and Lighting arrester?

6 14148

Explain the working principle of Synchronous Generator and Assynchronous generator?

TATA,

11 49646

why the current leads voltage in the case of a capasitor

Infosys,

9 17387

Motor also having losses, we call KW rating. In transformer and generator having losses but we call KVA Rating why?

9 12994

The rotor current is directly proportional to slip. How?

3 6680

How the starter control the starting current in three phase AC Motor?(In DC apply the reistance).

6 13412


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Un-Answered Questions { Electrical Engineering }

explain working principle of earth leakage relay

2866


what is the differences between microprocessor and general purpose computer

1469


i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

1419


what is the voltage between earth to neutral in lift.

1181


In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1444






What is the form name of 'c' license, I want to download in web

1234


we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1449


is IS says that neutral should be brought to switch box. and this one is a recomended practice

1272


regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

1389


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

422


If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

1638


HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

1530


what are the different kind of cables used for transmissions?

547


If rotor works in clock wise what happens

1242


A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

959