Process Control & Instrumentation Mcqs for Chemical


Q.  Flame photometry is used for the determination of compositional analysis of_______________?

a. Solids
b. Alkali metals
c. Natural gas
d. Isotopes


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  In a second order under damped system, the_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  “A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency.” This is _______________ criterion?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  A typical example of a physical system with under damped characteristic is a____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  In a closed loop system, the process to be controlled is an integrating process with transfer function 1/2s. The controller proposed to be used in an integral controller with transfer function 1/T1s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Working principle of mercury in glass thermometer is__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Water is entering a storage tank at a temperature T0 and flow rate Q0 and leaving at a flow rate Q and temperature T. There are negligible heat losses in the tank. The area of cross-section of the tank is A0. The model that describes the dynamic variation of temperature of water in the tank with time is given as________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The transfer function for a P-D controller is________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  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________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Dead zone is the__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  All the thermocouples used for temperature measurement use dissimilar metal ________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  A non-linear chemical system is exemplified by a/an_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  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 ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Phase margin is equal to_______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  For the time domain function f(t) = t, the Laplace transform of ∫0 t f(t) dt is given by___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Thermocouple is suitable for measuring_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The frequency at which maximum amplitude ratio is attained is called the ______________ frequency?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The time taken for a radioactive element to reduce to 50% of its original weight is _____________ years, if its half life period is 12 years?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Pick out the wrong statement?
Category: Chemical Engineering Mcqs,   Published by: teswesm