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Engineering Interview Questions
Questions Answers Views Company eMail

what is the source of time varying electric feild?

1 3153

what is the source of time varying magnetic field?

2 3915

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?

2008

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

2157

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 4677

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

1936

what is the difference between anf & centrifuge?

2917

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

Blue Star,

2836

what us diff between shaping & hobbing m/c

1 10613

What is stripping?

2 6396

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

2230

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

17 19315

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

2 4780

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

2349

how can check the resistance of battery contact?

Cipla,

2208


Un-Answered Questions { Engineering }

what is the quantity of cement and sand in 1 sq.m (mortar ratio ) a, 1:4 b, 1:3 c, 1:6

1937


What is the Equivalent for 9.81 kgf= ?

1104


what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

1897


How long does it take concrete to harden?

1176


How do you compute moisture correction using the parameters gathered from Nuclear Density Gauge Apparatus and the moisture contents results from the lab.?

2267


why centrifugal pump used in I.D.fan and axial pump in F.D. fan

2444


How does the phase sequence controller works, how it identifies the phases? confirm working principle

2112


how pwm signals generated????

2118


Would you say me, selecting mechatronics engineering will be useful to my career in this present society?

1021


What is demising walls?

1174


What is megering????

15485


Define what is the melting point of e70 steel, 304,308,316 stainless steels? In addition, define what is the hottest part of the flame in a fire?

1061


What is current & voltage ? Voltage perform at any load without current or not?

1886


Why the aspect ratio of tv video display is 4:3 or 16:9? Why not it is any other?

981


how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

1269