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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 5580

why u want to work in sail/ntpc as u r already in an it company where life is good, good environment no much tensions etc?

Sail,

6 15212

% voltage variation in distribution a)1% b)5% c)10% d)15%

2 3995

which turbine has high thermal efficiency a)open gas turbine b)close gas turbine

2 3984

What is the application of Dyn1 and Dyn11 vector group of transformer?

2935

why we r used DC megger insted of AC megger?

Adani,

1 3860

Simple calculation of improving power factor?

5 8877

What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

L&T,

2234

WHY THAT THREE COLORS CHOOSEN IN 3 PHASE? WHAT IS MEAN BY RYB?

2 5993

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?

Cords Cable, TATA,

4 6407

What happen if ac supply is fed to rotor of the alternator?

1 3499

When dc supply is fed to rotor of the alternator how it work?

2108

When a fourth resistor is connected in series with three resistors, the total resistance

ITI,

1 6818

When one of three series resistors is removed from a circuit and the circuit is reconnected, the current

1 3838

All the voltage drops and the source voltage added together in a series circuit is equal to

2 4213


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt

2020


What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

1118


If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses

1933


How isolater function when installed inelectrical 440V wiring

2290


How is the connection of the tap changer on the HV side been made?

2037


What is conventional thermal current (Ith)

4489


Name of the relay of low lub oil presuure in DG sets

2099


what is metering cum synchronizing panel and how it is used?

4705


for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

2149


What is the difference between line drop and percentage line drop?

1610


What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

1897


Draw a block diagramof Three UPS systems connected in Parallel mode?

2214


What is mean by hot and cold loop testing?

1153


why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

2331


How cable from Kit-Kat to main switch, from starter to motor are designed?

2161