Process Control & Instrumentation Mcqs for Chemical

Q.  Gas analysis is commonly done using the___________________?

a. Thermal conductivity cell
b. X-ray diffraction
c. Mass spectrometer
d. Emission spectrometer


ANSWER: See Answer
 
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MCQs:  The function of a transducer is to _______________ ?
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MCQs:  Routh stability method uses ______________ loop transfer function?
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MCQs:  Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their ?
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MCQs:  Instrumentation in a plant offers the advantage of_______________?
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MCQs:  Typical specifications for design stipulates the gain margin and phase margin to be respectively__________________?
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MCQs:  Which of the following is an undesirable dynamic characteristic of an instrument ?
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MCQs:  Phase lag of the frequency response of a second order system to a sinusoidal forcing function______________?
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MCQs:  An ideal PID controller has the transfer function [1 + (1/0.55) + 0.25]. The frequency at which the magnitude ratio of the controller is 1, is________________?
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MCQs:  Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about ______________ micro mho/cm3?
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MCQs:  Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?
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MCQs:  Which of the following measurements can be made by the measurement of emf ?
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MCQs:  Which thermocouple can be used to measure a temperature of around 1400°C ?
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MCQs:  The closed loop pole of a stable second order system could be_______________?
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MCQs:  In a single tank system, the transfer function of level to inlet flow rate is__________________?
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MCQs:  Humidity of air can be determined by a__________________?
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MCQs:  A negative gain margin expressed in decibels means a/an ____________ system?
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MCQs:  The term analogous to voltage in a single tank system is the_______________?
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MCQs:  Dome temperature of blast furnace stove is most accurately measured by a____________________?
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MCQs:  The pressure sensing element of elastic type pressure gauge is never made in the form of a_________________?
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MCQs:  Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a________________?
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