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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Difference between a pilot wire and a normal conductor?

United Arab Aluminum Company,

2011

How to reduce current flowing in neutral due to unbalanced load conditions in a three phase system.

IOCL, wbsedcl,

1 4126

Why current transformer is earthed??

2 4855

why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 2556

what is compatible kva for 3300 watts and why

FoodBev,

1 3125

What is the value of system voltage?

Bhel,

2 4957

What is difference between MCC,PMCC,PDB?

Cipla, JSW,

2 37713

(1) From the following option, which option is correct for largest size transformer.? a)1KVA,25Hz , b)1KVA,50HZ , c)1KVA,60Hz , d)1KVA,100Hz

Torrent Power,

5 8537

Why ct secondary is not kept open while primary charged. Answer in terms of ct parameters.

Power Grid,

4 6358

What type of surgery impedence with 200ohs

1 2334

suppose i have two single and three phase induction motor,thier have not any rating on its panel,anybody can tell me which motor is single or three phase?

Doon,

1 3169

why chock were used in old tubelights but are not newest tubelights?

1904

Differnce between negative Pahse SequenceFunction and unbalance Function?

Atsco, LMW Lakshmi Machine Works Limited,

1706

What is the name and type of power transformer oil?

4 5414

what is the full name of ELCB &MDB 2 5004

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Un-Answered Questions { Electrical Engineering }

in shunt clippers why a resistor is used in sereis with the input

2029

what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?

2340

how cables go in and come out for distribution from the feeder pillar box?

2046

In Plumbing services What are accessories we consider for a bathroom?

1955

how to calculate power consumption in slip ring motor at different step

2189

In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

11776

derive DC RMS value for half wave rectifier?

3161

a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

1659

What is FM200 Gas??Applications........

2315

What is notching in dc machine?

1958

Why Neutral Isolation is required?

2189

WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

2211

how much leakage current is allowed in MC61A L&T make relay?

3618

why ten delta testing is carried out on power transformer

1779

What is Auto Mains Failure Panel & Auto Synchronizing Panel

1896

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