Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is master trip relay? How does it work?

1 4300

What is the difference between PLC & DCS?

Power Plant,

1 1347

What is the instrument to check the rotating diode fuse of alternator in running conditions?

1343




why in dc generator field rheostate kept in maximum position?

1 2870

What is Harmonics how it is produced and what is the method to control the same

Siemens,

1200

Why dc voltage used to excite alternator field in stead of ac?

4 4825

why voltage rating of transformers are in multiples of 1.1?

3 3563

what should be distance between phase to phase in 415v system?

NTPC,

1 4353




can we correct the p.f.of ac generator?

APGenco,

2 3828

What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 3331

In a poly phase circuit if clamp on meter shows same load on three phases and their sum on neutral then why we use three and a half core cable or maximum the same size of core as that of phase?

1 2051

how to determine kilowatts (real power) is used in energy meter? is it apparent power effect the disk rotation?

1 2066

When will you multiply and devide with derating factors to the actual value while sizing the cable?

934

why we are used armed coble for wiring of 3phase motor?

AluChem,

3 3237

how to improve my communication skills

Infosys, MAHINDRA, Wipro,

7 5776


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Un-Answered Questions { Electrical Engineering }

Why neutral is not used in three phases dol starter

861


what is the difference between droop mode and ischnorous mode in thermal powerplant?

1588


difine electrical ballast in HPSVL

975


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

1332


What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

793






describe the A.C. Generator Testing procedure

1121


Describe Non I.S. Earth System and why is it used?

706


what is the effect of power factor of machines in starting current

973


In the magnetic fluxes, what is the role of armature reaction?

94


What are the various types of rotor used in the alternators?

80


Explain what is use of lockout relay in ht voltage?

72


sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

910


Define load factor?

92


What do you mean by power transformer?

87


hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

1934