Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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

1 5502

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

1 4181

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

1 3850

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

1 5179

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

1813

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

FFC, NTS,

1 7119

For high frequency application we use which transformer?

1931

For overhead protection we use which transformer?

2490

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

1 2838

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

NTDC,

1 4690

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

2063

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

2262

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

1 2325

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

K Tech Electrical,

1 2827

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

2135

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Un-Answered Questions { Electrical Engineering }

why high speed tripping relay is used in protection circuit why not normal relay

1486

What is a dominant pole?

1165

What if the difference beween internal and exrteranal LBB?

1676

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

2372

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

2264

How to connect the chemical earthing and complete process tell me plz

1858

How do u analyse protection fault when vcb tripping on load

1652

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1830

What is the abbreviation of NGT panel

2041

how to find the voltage's of a transmission line plzz help with pictures i am not able to understand

1361

if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

1601

Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

2079

12.5 tons a/c is their how much kva generator can recommend to the customer.

2030

What is a differential amplifier?

1255

What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

2009

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