what is the way of measuring air flow in air duct?explaim
instruments used and DP creation in line?
Answer Posted / ram
There are different formulas for calculating air flow in
duct according to the duct type, mean a rounded duct or
square duct, etc.. using anemometer in FPM(feet per min.) or
CFM (cubic feet per min.)
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what are the selections available in configuring a burnout protection of a controller? thanks
1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.
What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?
Explain about safety integrated level protection? . How it was differ from other protections ?
can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).
What is cut off relay? And why use in PLC and DCS?
How to convert milliampares into flow??
Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.
what is interface level and how it is calibrate?
what is the diffrence between pressure safety valve & pressure relief valve....pls
What are the type of bonnets in the control valves?
In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.
How works weighfeeders in cement industry? what is the working principle?
Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem
Explain the working of an enraf level gauge.