Instrumentation Interview Questions
Questions Answers Views Company eMail

What is the use of double seated valve?

63

Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.

63

Why thermo wells are used?

68




Explain the mechanism behind the turbine meter.

60

How will you test a transistor with a multimeter?

59

What is the use of gauge?

63

How an rtd work, and what volts/current goes to a rtd to measure the resistance?

59

Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

60




What is the use of single seated valve?

59

How is automatic reference junction compensation carried out in temperature recorders?

67

How many ohms are required for proper earthing?

67

How would you choose differential range?

63

Why thermo wells are used? What materials are used in thermo wells?

69

What is the working principle of the magnetic meter?

64

How signals can be taken through modbus?

69


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Un-Answered Questions { Instrumentation }

Speedtronic system .

871


In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?

920


what step is taken for ESD ( emergency shut down) in DCS REPLY to hashimka20009@gmail.com

1333


all types instrumentation questions want

1110


Explain the difference between plc and cnc?

29






how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?

1108


Area classification, Equipments, Gas groups, temperature classification, Ingress protection, Fire Extinguishers.

910


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

382


Explain an adaptive / self-tuning controller’s major draw card.

1306


How u measure the massflow in orifice flow measurement techniques

443


Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

739


who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.

3166


when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?

706


How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

1106


I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?

1146