Answer / rajesh

dc motor works on principle of electromagnetic field creation
and torque production due to magnetic componentn(rotor )
placed along it in oriented direction and it is reversible

drives is a ckt to control speed of motor (using scr)
e.g dc drive for dc motor

Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

0 Answers  

---

without a positionar can a control valve operate? give the difference of operating with positionar and without positionar?

5 Answers   IOCL,

---

What is the three element? And how it work?

1 Answers  

---

Absolute pressure is 700psi,what will be the gauge pressure?

1 Answers   IFFCO,

---

how to derive kg/cm2 to mmwc? complete derivation.

11 Answers   L&T,

---

Explain, and give a real-world example of MODULATING control

1 Answers  

---

In Boiler Drum Level- Level control valve how can it tuning (PID)?

2 Answers  

---

What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?

0 Answers   Engineers India Limited,

---

I HAVE PRESSURE TRANSMITTER WITH TWO WIRES 24 VOLTS SUPPLY.IF TRANSMITTER WILL GIVE SIGNAL TO THE DCS WHAT HAPPEN TO THE 24 VOLTS POWER SUPPLY IT WILL DROP OR REMAIN TO 24 VOLTS POWER SUPPLY.

3 Answers  

---

Which wiring connection is preferred in motor for industrial use?

2 Answers  

---

What are the materials use for COntrol Valve body?

1 Answers   KNPC, Qatar Petroleums,

---

why 8bit microprocessor referred as 2^16?

2 Answers  

---