Answer / mahesh

If Control valve is constructed as per API 6D pr API 6A then fire testing of valve shall be as per the ISO 10497 or API 607

What is difference between converter & transducers?

4 Answers  

---

send me HPCL paper

6 Answers   HPCL, Shuiba Hotel,

---

Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

---

In electronic board one fuse(rating 230v,100ma)showing 2.5 ohms with multimeter,then the fuse is healthy or not.

4 Answers  

---

Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

0 Answers   Ace Info,

---

what is SIL 1 2 3

0 Answers   KOC,

---

In instrumentation standard we use 4 to 20ma for transmission , why cant we use 3 to 19ma ?

1 Answers   NSH,

---

An atmospheric storage tank has a diameter of 20 m and a height of 8m.It is half-full of liquid with the remainder of the space containing air normally at atmospheric pressure. If the connection to atmosphere is accidentally closed off and 10 cubic m of liquid removed, what happens to the internal pressure of the tank? What are the possible consequences for the tank?

1 Answers  

---

as an instrumentation engineer which are the things we have to know / or we must have idea about that....

2 Answers  

---

Which types of quections asked in interview for FORMULATION PLANT (PHARMA)

0 Answers  

---

what is the different between plc and dcs ? I know full name of this two but I want to know what structure and working style and speed I/O capacity and controller difference?

2 Answers   L&T,

---

Could you explain to me the enraf (servo gauge) mechanism. How it works ? and how it is working on archimedes theory while it's not immersed into the surface? and how can we calibrate it ? Thanx

1 Answers  

---