1. Categories >> Engineering
  2. Suggest New Category


Engineering Interview Questions
Questions Answers Views Company eMail

what is the source of time varying electric feild?

 1 2452

what is the source of time varying magnetic field?

 2 3001

charge at rest result in e.f and charge in motion result in m.f then how can an accelerated charge give rise to emf wave? then there should be no e.f due to acc charge as it rise from charge at rest?

 1523

how can power amp inc the power without inc the voltage or current values?

 1721

my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.

 3 3493

I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

 1453

what is the difference between anf & centrifuge?

 2354

what is the working principle of thrust pump in centrifugal chiller.

Blue Star,

2367

what us diff between shaping & hobbing m/c

 1 9904

What is stripping?

 2 5495

why direction of angular acceleration is not find out by right hand rule?

 1747

if my 6 kva UPS gives 20 min. backup at 100 % load, then at 25% load what is the backup time?

 17 15060

Among the following Which is vector quantity? a. Flux b. permitivity c. flux density d. magnetic intensity

 2 3562

how much allowable resistance that can be difference in motor all coils?

 1825

how can check the resistance of battery contact?

Cipla,

1784

Un-Answered Questions { Engineering }

we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

1580

1.How much batten required for 1 sqm Shuttering. 2.how much pipe & clamps required for staging of 100 sqm shuttering at 5.0 m height.

1789

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1512

in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

2413

Explain the purpose of inductor in an electric circuit?

642




. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

2836

How does hollow shaft impeller works? Does it based on principle of pitot tube?

1762

What are Ikats

5

In how many types u can do POP on ceiling and walls(on which material or by using which material)? b) what is the difference between dry , oil bound, enamel, acrlyic type of painting?

1867

During reclamation how can the occurrence of mud waves can be rectified?

831

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

998

sir, pls send me 5 year previous question papers of RRB- Junior Engineer-GrII to my mail id

1538

magnetizer priciple

1581

What is memristor? How many modes it works?

606

im an electronics and communication engineering..i have to attend an interview based on contract basis.i kindly request u to send all possible questions to my mail...its varsha.happy@rediffmail.com

1471

For More Un-Answered { Engineering } Questions Click Here