Answer / nidhi

control valav has mainly three characteristic
1. linear
2. quick opening
3. Equal percentage

Answer / pragati sutar

control valve mainly has 2 characteristics- Install and
inherent. inherent char. further classified as 1.equal %
2.quick opening 3.linear charactaeristics

Answer / s. kanniyappan

1) linear
2) square root
3) quick opening
4) equal percentage
5) parabolic
6) hyperbolic

Answer / sam

The basic char of cv's are
1) Inherent char
2) Installed char

Under Inherent char
a) quick opening
b)Equal percentage
c)linear

Answer / faiyaz

1.Linear
2.Equal percentage
3.Quick opening
4.Square root
5.Hyperbolic

Answer / sukumar

control valve three types of cheracterstics

equal % means give 50% valve opening 35%
liner means give 50% valve opening 50%

quick opening means give 50% valve openig 65%

How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

0 Answers   Petro Rabigh,

Boiler flame scanner working principle?

1 Answers   Bhel,

what is hot loop check and cold loop check.

3 Answers   Bapco Bahrain Petroleum Company,

What is the input impedence of an OPAMP as an ideal device.

1 Answers   CCIE,

wich is coming the first HAZOP OR SIL

0 Answers  

what will be the principle & application of dissoled oxygen analyzer at wast water treatment plant at oxidation basin & how it work?

1 Answers  

I want to use 1/2 inch SS316 tube in my high pressure & temperature (64 kg/cm2 & 500 deg C)after condensate pot in pressure tranmistter. 1) Is it possible to use 1/2" ss316 tube in high pressure and temperature line. Tube manufacturer is local vendor. 2)On sarting the plant, We need to do system fluse that time condesate is not in the condesate pot so steam is directly contact with the tube. We have no exact calculation to know our tube is ok or nor at this time. pleae,reply.

1 Answers  

I wnat to practice more online type questions .so will you show them me to take a practice test?

1 Answers   VA Tech Wabag,

what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

1 Answers  

TEMPERATURE VARIATION FOR FREQUENTLY.

0 Answers   TVS,

As you are fresher in Instrumentation & control engineer.Then why should I select you?

1 Answers  

Which instrument used to calibrate the pressure switch?

8 Answers