What is the definition of direct acting valve & reverse acting valve

Answer Posted / nagesh

Output = SP-PV ------ Reerse acting
Output = PV-SP ----- Direct acting

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain signal isolator

763


Why are the uses 24vdc in industries

505


hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???

1536


can you provide me full detail about instrumentation in ONGC??

1768


There are many type of control cable like pair,core,tried, What are defination each one

1744






For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

1510


Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

1067


Explain the working principle of lvdt?

712


how to work static pressure sensore how to work dpt

1420


Boolean algebra

1723


How u measure the massflow in orifice flow measurement techniques

994


TECHNICAL/ARTITUDE

1728


What is instrumentation control?

661


What is intrinsically safe system?

726


How u will setup SPI(2007) on Citrix Server (Thin Client Mode)? Plz Justify?

1601