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Engineering Interview Questions
Questions Answers Views Company eMail

Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??

1871

explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2257

at what rate the micro controller increment its timer....is it 1micro seconds or 1/(12*10^6) seconds

1791

L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW MOTOR STARTS WITH EARTH FAULT RELEASE

Ambuja,

1 3730

L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW MOTOR STARTS WITH EARTH FAULT RELEASE

Ambuja,

1 6354

how to calculate no. of bricks for 1 cft? how to calculate cement and sand in cft?

L&T,

13 69046

how to estimate material requirement for an area of house in square feet?

2342

URGENT PLEASE//////////A WORK SHOP IS HAVING A 100 KVA TRANSFORMER 11KV/415 VOLTS, AND THE CONNECTED LOAD OF THE WORK SHOP IS 80 KW WITH INDUCTIVE LOADS, LIGHTING LOADS,ETC., HOW MANY EARTH ELECTRODES ARE NEEDED AND WHAT IS THE EARTH RESISTANCE OF EACH EARTH ELECTRODE AND COMBINED EARTH RESISTANCE in normal soil. AT 11 KV SIDE AND AT LT SIDE. HOW TO CALCULATE.

1 3385

IN 500 KVA TRANSFORMER 11KV/415 VOLTS HOW TO CALCULATE THE HT CABLE SIZE AND LT CABLE SIZE FROM TRANSFORMER TO LT PANNEL. AND HOW MANY MAINSWITCHES OR MCBS WITH RATING ARE TO BE PROVIDED

BSF,

2 24498

If rotor works in clock wise what happens

1910

in a pump, impeller wear ring is harder or casing ring? why?

Mold Tek,

2636

How to call the "Procedure" in test bench for VHDL...? Please post the answer for it....?

2201

Actually i am new to vhdl, i want to know how to declare the procedure and how to call the procedure in test bench for VHDL.... Please send answer for that...?

1965

i need mat lab program to find out the transmission line losses,regulation and losses

AITM,

1899

How to calculate the force on a column of three story building. What should be the base concrete height?.

C&C,

2223


Un-Answered Questions { Engineering }

how to know the diffrential relay setting of 06mva step- down (delta-star)transformer?

2032


Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)

2105


Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.

3352


Explain at what voltage does land line telephone operate?

1037


we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1918


Name four important properties of a good refrigerant.

1059


Can you explain about Restricited earth fault protection scheme

1854


How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

2280


Name the instrument which measures its speed in a car?

1085


Define What is an ice dam sock?

1294


which type of zones used for boiler? & why ?

1865


Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

1780


How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?

2153


what is transformer utilisation factor?

3802


Derive the equation that links voltage, charge and capacitance.

1154