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Electrical Engineering Interview Questions

When electric field is parallel to the plane of incidence, the electromagnetic wave is said to be a.Linearly polarized b.circularly polarized c. Elliptically polarized d. Hyperbolically polarized

2795

﻿Due to velocity saturation, MOSFET reaches saturation a.Before Pinch off b. After pinch off c. At Q point d. Before Q point e. After Q point

1978

Which system use dc to dc high voltage gain A. Solar system B. Battery backup

1392

Natural frequency in the control system represents nature of a. Transient response b. Oscillations c. Overshoot d. Speed of responce

3335

Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage

926

which theorem is used to analyse fault a)thevinin b)Norton c)Superposition d)jordan

FFC, NTS,

4283

For high frequency application we use which transformer?

963

For overhead protection we use which transformer?

1342

Which fault is caused by lightening and thuderstorm a. Line to line fault b. Single line to ground fault c. Double line to ground fault

1378

Which modulation has higher data rates a.fm b.am c.qam d.qpsk

NTDC,

3098

An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

1208

The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

1428

Less cost of delta connection over star connection a. No fourth neautral wire

1097

Transmission lines usually use a.3 phase b.2 phase c. Single phase

1412

In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans

1121

Un-Answered Questions { Electrical Engineering }

What are the advantages of stationary armature and rotating field system?

264

Is there chopping current in resistive circuit

1126

how balanced in star delta connection ?

1164

What is the abbreviation of NGT panel

1121

What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?

1130

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

1391

how to determine the inrush current of a transformer

1685

Differentiate between real and apparent power?

232

what is the solution for meger test failed the MV cable?

2816

What is the difference between a 3 winding and 2 winding Potential Transformer

1382

Dry type transformers

992

How to calculate mf when meter equipment and meter are connected

911

How does an induction motor start?

307

what is earthing transformer? draw the winding dia.of earthing transformer.

861

what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

1125