Answer Posted / visakh pradeep

An obstruction in a fluid flow creates vortices in a
downstream flow. Every obstruction has a critical fluid
flow speed at which vortex shedding occurs. Vortex shedding
is the instance where alternating low pressure zones are
generated in the downstream.These alternating low pressure
zones cause the obstruction to move towards the low
pressure zone. With sensors gauging the vortices the
strength of the flow can be measured.

Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;

2250

---

Why we are using reverse action in displacer types level transmitters on some Vessels?

2602

---

When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1862

---

For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?

5510

---

Explain the burnout feature.

1026

---

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?

1818

---

How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?

2776

---

what is the usage of QDV & VOLUME BOOSTER

2393

---

How d.p. Transmitter can be applied to close tank?

1066

---

how do u calibrate the vacuum transmitter if it shows more reading

2099

---

What is Predictive Maintenance

1211

---

How to calibrate capillary type level transmitter

1827

---

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

2215

---

How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

1556

---

how to control pid

1969

---