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Answer Posted / shivanand hedgapure
nickel,platinum,copper,balco,tungsten.because these are good conductors
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explain key exchanges in all security modes WPA,WPA2,TLS?
in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?
protection relay watchdog contact operation?
Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?
Explain how thw analog to digital converter works with the circuit diagram
What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?
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.
Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls
What are the different types of thermistors used in industries? How to the operation of typical thermistor?
how works encoder in plc
Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?
What are the materials available to prepare individually for competetive exams in Instrumentation field? Plz reply...
If i have 4 Allen Bradely make RS logix 5000 PLC and for viewing that we are using 4 RS view SCADA for 4 different packages. Now, I will want to view two packages on only one SCADA. Then how i will do it?
the 3 most common transmitter protocol being in refinery or qatar gas and aramco.
while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?
