Answer Posted / mathan.j

Analog card means the signals may interms of 4-20 ma , 1-5 v
ie variable source of signals.
Digital cards means the source of signals may interms of
binary o & 1, no & nc contacts ie 24v or 0v.

for example transmitters are produce 4-20 ma ,and it is
called analog input.

limit switches ,On & Off switches are called digital
signals.

plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

2407

---

hye SAM acn u send your e mail id, so that i can solve my query through e mail?

2346

---

Question on maha cement

805

---

please any body have most important data for study for saudi aramco test of instrument QC thanks email shahnaveedullah@gmail.com

1747

---

can any send me a forbes marshall dtron 316 manual

2038

---

this site is owned by an nonsense

2404

---

A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

2260

---

any one can send me instrumentation previous interview papers? I prepare for MNC Company Interviews? my mail id- Rakesh.Golla@dodsaldxb.ae , and another mail rakesh.gvk@gmail.com

2038

---

sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

2540

---

any body please send me the old question papers of ongc test.

2175

---

i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......

2159

---

please tell no. & add. of consultancy who recruit me in power plant as instrumen engg. present i m working in power plant as ass.t instrument engg. thanku mahesh 09226562826

2176

---

Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

2943

---

use of split range ? where it is used ? in which control loop it is used ?

2040

---

Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com

978

---