GNFC Interview Questions

Will you please give here some technical question generally asked in interview of GNFC placement ?

[Kiran Chandar]

As you want I am here giving you technical question generally asked in interview of GNFC placement.

GNFC placement: Technical Question:

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

Why the ratation of fan is anticlockwise all over the world?

please design a rectifier with batteries for below requirement and also explain how you calculate this solution, Load = 700Amp DC Backup time = 6 hour. please explain briefly ?????

what is pulverisation

what is pressure control

WHATE IS DIFFERENT BETWEEN ANLOG , PLC & DCS OR EXPLAIN ANALOG / PLC / DCS SYSTEME

I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu

What is the basic principle of vibration measurement by BENTLY NEVADA vibration measurement system? and Why it gives the -ve voltage output?

The advantage of free wheeling diode in a Full Ware rectifier is -reduces the harmonics -Supplies the voltage at negative vlotage

why we use 0.2 to 1.0 kg/cm2 output in control valve
why cenrifugal pump casing is called involute casing.
what is difference between total flow and flow rate in general ?? explain it with daily life example.

What is fault tolerent system

why there is curve at the end in channel sectin