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

Topic :: Voltage

Voltage Interview Questions

Questions Answers Views Company eMail

how step up transformer step up the voltage and what is the reason behind it?

3 5474

why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??

Jindal,

6 45874

What is the high tension lines voltage and low tension lines voltage?33 kv is high tension line or low tension.

MPSEB,

1 8946

what is the lightning arrester rating for 3.3kv system voltage

1 4932

Why D.C Voltage used in Meggering...as well as in Hipot test? why not A.C?

2 5762

At what voltage domestic tubelight works?

Cigfil, L&T, MNC,

2 8343

If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

2257

why voltage between neutral and earth, with out secondary grounded distribution transformer

Wescosa,

1 3645

how megger step up the DC voltage

Voltech,

1 5219

why does voltage generation at 11 kv?

2 4982

we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

NTPC,

2034

why so voltage is same in parallel circuits and current is same in series ckt?

3 6004

Why dose voltage rated at 11kva

TK Chemical Complex,

1 4117

Why Lead-Acid cell voltage is 2.1 volt, why we can not chenged it cell voltage by using extra row-material, only incries its AH.

1 3624

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

GATE,

1 5364

Related Topics

Voltage

Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3968

How about voltage source?

2322

How do you size NMOS and PMOS transistors to increase the threshold voltage?

3085

Explain the basic circuits for a current- and voltage- clamp set-up.

1835

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

2491

I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

2251

iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

2301

how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

2267

can we calculate the voltage level for microwave energy which is using for our mobile communication?

2873

Is it possible to calculate a voltage for microwave energy generating in oven? Is there any formula relating frequency and voltage and it should be independent of speed?

2339

Formulae for calculating the transmission line losses for different voltage levels

2234

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2362

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

6216

What is the difference between Static and servo controlled voltage stablizer?

2222

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1886