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DRDO Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Two electronic energy meters are connected to seperate phase wires, but connected to a looped neutral. Are these going to function correctly?

8 8150

why we use star connection on the primary side of a transformer?

5 12991

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 25950

What happens if a three phase induction motor is suddenly single-phased while running? Which type of winding connection will be affected?

22 56330

campared to ac, in dc corona loss is

4 7385





Describe the control mechanism of missile launcher???

935

what is the difference between thyristors and capacitors

2 6852

two bolbs of 100w and 40w respectively connected in series across a 230v supply.which bolb will glow bright and why?

16 52196

A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 3115

WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT

2 3003

if u give d.c. supply to transformer primary then what happen.&why??????????????

4 6244

In simply words(not explain any formula )what do you mean by power factor.?

5 4371

What is the minimum load that you can keep in a 3 Phase 40 KVA Diesel Generator? Is it neccessary to load all the 3 phases? Can a phase be left without load?

2 3870

What is the difference between voltage and emf ?

3 4503

What is complex power?

1 1953

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Un-Answered Questions

Define magic tables in sql server?

42


What are directives?

38


What is string interpolation in angular.js?

33


How do you convert 4-way mfs to 8-way mfs?

48


Could you explain the difference between func vs action vs predicate?

13






Explain secured connection?

29


Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

942


difference between servo motor and synchronous motor

1287


what is the difference between data migration and production migration.

1255


What is diffrence between extractable volume and deliverable volume? Answer pls

1748


from where do u collect test data if u miss some data what will happen

1569


What is a stable sort?

8


As per ICH related substances stability trend limit from initial to shelf life

1998


What is exporting and importing utility?

37


Describe full binary tree and complete binary tree.

42