Process Control and Instrumentation MCQs
Practice free Process Control and Instrumentation multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 317 questions — no login required.
Question 127easy
A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is
Question 128easy
Instrumentation in a plant offers the advantage of
Question 129easy
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is
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Question 130easy
If response of a control system is to be free of offset and oscillation, the most suitable controller is
Question 131easy
Concentration of sugar solution can be determined by the
Question 132easy
Which of the following is a desirable characteristic of an instrument?
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Question 133easy
Which is the strongest paramagnetic gas?
Question 134easy
Which of the following does not figure in the list of seven substances selected for international temperature scale?
Question 135easy
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.