Process Control And Instrumentation | Test For NTS PPSC FPSC, TEST

A. Air to open valve with the controller direct acting
B. Air to close valve with the controller indirect acting
C. Air to open valve with the controller indirect acting
D. Air to close valve with the controller direct acting

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Category: Process Control and Instrumentation

Gas chromatography is used for the measurement of ________________?

Reset rate is the another term used for ____________ time?

Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are________________?

Which of the following thermometers is not suitable for distant reading upto 60 metres ?

Platinum resistance thermometer is the international standard for temperature measurement between __________________?

A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?

Which thermocouple can be used to measure a temperature of around 1400°C ?

On-off control which is a special case of proportional control, has a band width of about _____________ percent?

Typical specifications for design stipulates the gain margin and phase margin to be respectively__________________?

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?