Electrical Engineering Interview Questions
Questions Answers Views Company eMail

critically criticize the application of ring main unit in power system

81

why i can not use thimble on capacitor duty contactor

85

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.

73




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.

50

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,

145

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,

88

what are the disadvantages of low power factor

HMK,

95

how can we Increase the Value Of Frequency in electric circuits

HMK,

124




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

HMK,

135

how to calculate short circuit current for the busbar

HMK,

123

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

1 225

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

149

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

252

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,

1 204

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

189


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Un-Answered Questions { Electrical Engineering }

Write a note on Treatment for electric shock.

628


WHat is the general checks required for Dry type transformers

816


What is the actual calculation for transformer short circuit test?.

1092


how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.

955


what is gas turbine intercooling ?

702






What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

242


Why derating factor os applied on Cables?

757


all details of DG UPS HVAC

692


Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

725


I am EEE student i want to improve my core side skills.how cn i approach it?

1179


sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

612


Please explain me about Relay curves and their sources to read ?

630


what is RFID? thire application;

777


What is deference between MCB & MCCB & ISOLATOR

621


after how many spot we must chang secondry cable in portable spot welding gun?

708