Electrical Engineering Interview Questions
Questions Answers Views Company eMail

critically criticize the application of ring main unit in power system

192

why i can not use thimble on capacitor duty contactor

175

Make a list of materials and layout diagram for a 35hp motor, to be wired at 35meter away from the MDB in a chemical factory.

181




Draw SLD for a panel has 500A Bus Bar rating, with 4 outgoing, each is 80 A (load current), showing the transformer and capacitor bank rating.

132

Draw SLD feeding from the SS up to distribution board of the load, calculate cable size, breaker sizes, and meter for the following case: Ground Floor: electric room, pump room, 5 shops, each is 15 KW First Floor: 5 shops, each is 15 KW Second Floor: showroom 30 KW Service Loads: water pump 3 KW (3ph) , fire pump 3 KW (3ph), and one DB service 12 KW (3ph).

HMK,

235

Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

HMK,

221

what are the disadvantages of low power factor

HMK,

188

how can we Increase the Value Of Frequency in electric circuits

HMK,

211




Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

HMK,

231

how to calculate short circuit current for the busbar

HMK,

220

What is main purpose of chock coil and starter in florescent tube ?

1 385

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

236

7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

1 833

What is duty cycle for HT motors? How many start permitted if mentioned as 01 for hot and 02 for cold per duty cycle?

GVK,

1 446

Purpose of providing neutral isolation panel for parallel operation of diesel generator

295


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Un-Answered Questions { Electrical Engineering }

how to get electrical supervisour certificate in gujarat

863


What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

762


WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT

1215


Where can I get CPWD electrical specifications & Shedule of rates? Please help me

1099


can we synchronize star system generators with delta system transmission line ? and how ?

1639






What is tranformer differtial?

686


What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

691


sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"

753


In a single how much maximum current and watts using

936


Please explain, how to test vector group of tranformer(Delta y1) . Thank

527


I am inpecting a 10kVA UPS what tests should i do and should i observe?

1061


What are the weight of 800KV DA,DB and DC type tower ?

2038


Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

853


which type of cabel

1133


what type of questions are asked and howmwny questions belong this catagory?

947