Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How does an induction motor start?

Ericsson,

714

What is the difference between a Root Locus plot and a Bode plot?

GE,

752

What is DC series motor?

Ericsson,

695

How is the speed of a DC shunt motor related to the armature current?

GE,

649

What is the armature mmf in a D.C machine?

HPCL,

771

fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be

NIC,

592

For a stable system, where should the poles of a system be in a root loci plot?

GE,

694

A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?

Ittiam Systems,

645

Classify driling machines.

Essar,

670

What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

HPCL,

656

A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

TCS,

601

Give some differences between open loop and closed loop?

Ericsson,

603

What does Bode plot tell you?

Ericsson,

783

What is the role of feedback in a closed loop control system?

GE,

633

What is a DC series motor?

Ericsson,

688


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

1508


My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

1572


Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

1739


How much load can be taken for chiller from 1500 kva transformer

842


When lag/lead/lag-lead compensation is employed?

703






If you have an earth with pilecap then your resistance is really low. why and how?

1408


write a program that prints prime numbers from 1-20 in digonal form

1498


Please define ohm’s law for a.c (alternating current)?

613


In what condition the HT fuse breakes?

1459


Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

1449


What are the classifications of heating element?

1497


what is negative and zero impedance in 3 phase induction motor ??

1452


what transformer we used normally and upto which kva?

1463


How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)

2720


My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

1416