Process Control & Instrumentation Mcqs for Chemical


Q.  Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?

a. CO2
b. O2
c. NO
d. NO2


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The minimum baffle height should be ______________?
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MCQs:  The LMTD correction factor (FT) is defined as the __________________?
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MCQs:  For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft3/sec, ρ = fluid density, lb/ft3 μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches) ?
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MCQs:  In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by ______________ times the hole diameter?
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MCQs:  Bubble cap tray is the most commonly used tray in large distillation column, because______________?
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