Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what purpose of the percentage impendance in transformer

3 3342

what is the full form of MEMO? name of memo train.

BirlaSoft,

6 20356

Is potential difference materials property ..? if yes tnen how.. explain brifly.

705




how to calculate the mf of kwh meter,if ct the ratio on meter is 100/5A

2 42845

Generally in d.c. circuits the direction of current is from possitive to negative.In a.c.circuits what is the direction fo current flow

4 3222

1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.

Simbhaoli Sugars,

1 3169

what objective books are good for preparing for PSU's?

NTPC,

3 9506

how the magnetic flux is said to be rotating & alternating?

4 9880




Whether the vacuum contactor requires Short circuit protection?If No,why?

Reliance,

775

Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

NTPC,

6 7711

can i have the methods of speed controls for 3 phase AC MOTORS.

7 3875

what is circuit recombiner and how it is different from circuit breaker

642

what is the function of anti-pumping in circuit breaker?

NCC, Aditya Birla, INEL,

20 95717

what the purpose of protection signaling equipment in substation?

2 5192

ho w to make Incident and accident reporting

1 1387


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Un-Answered Questions { Electrical Engineering }

what is the difference between gas group b and gas group c electrical equipment construction wise?

668


How much load can take a 16 mm aluminum cable 3 phase

544


hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds

753


In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

464


Explain Circuit Breaker Trip Characteristics in detail.

792






On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

1085


how to measure winding resistance of single phase motor?

1094


What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

695


What is shunt voltage and u v voltage witch one best

540


How many different speeds can be obtained in cascade control of two induction motors?

857


what is W.T?specify the acceptable range?

646


What is domestic transformer? Draw the connection of domestic transformer.

1052


if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

129


The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

832


I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

730