Interested to Buy Any Domain ? << Click Here >> for more details...
there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.
GATE,
1 5255there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.
GATE,
4 19669Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?
IOCL,
3 12885Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..
IOCL,
7 14113I am a electronics and instrumentation fresher trying for a job in IT sector. what do need to prepare for the interview?
2 4480In RTU Panel we are having several Analogue & Digital Inputs /Outputs. We are recently facing some problems over Analog inputs , which are not updating properly (But Digital Input are updating normally) Can any one tell me from where the problem is creating , we have checked PLC CPU card, Analog Input card & we reconfigured ,But still the issue is there. Issue : 1. Sometimes Analog values are updating & sometimes not. 2. Analog values are not updating normally , showing some wrong Values 3. Total dead (0 value) Analog values are Level & flow measurement from the field instruments. (But in field the instruments are working normally & Displaying the values normally in local display unit) This problem we are facing in our Water Plant. If any one experienced this same problem or having any ideas related to our issue PLS send your valuable Answers/Replies...
L&T,
6 8487Post New Instrumentation Questions
Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?
what is actual drum level and compensated drum level?
In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.
how to connect transmitter measuring sulfur process? 1-by using long impulse line or 2- by using coated short impulse line
which type of signal used in instrument?
NPN transistor, SCR, Zener diode, LED, Varactor diode, Vortex meter, RTD, Resistor, Crystal
How to Calibrate Vortex Flow transmitter in field
how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?
I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.
Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com
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.
Definition of reverse and acting controllers:
What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?
kindly sent some demo question and answer
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
