Chemical Engineering MCQs

Page No. 395

E.m.f. generated by thermocouples is of the order of ________________?


aMilli volts


bMicro volts


cVolts


dKilo volts


View Answer Milli volts

Liquid argon level in a pressurised storage tank (at 3 kg/cm2) is measured by a/an ____________________?


aGage glass


bExternal float gage


cDifferential pressure gage


dNone of these



Mercury manometer (U-tube type) exemplifies a ______________ order system?


aZero


bFirst


cSecond


dThird


View Answer Second

The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?


a(Q/P) e-(Q/R)S/(TdS + 1)


b(Q/R) e-TdS/(Q/P) (S + 1)


c(Q/P) e-TdS/(Q/R) (S + 1)


d(Q/R) e-(P/Q)S/(TdS + 1)



Smoke density of the flue gas going out of the chimney is measured by a __________________?


aPolarograph


bThermal conductivity meter


cPhoto electric cell


dChromatograph


View Answer Photo electric cell

Characteristic equation is the denominator of ____________ loop transfer function?


aOpen


bClosed


cBoth A. and B.


dNeither A. nor B.


View Answer Closed

Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?


aThermocouples


bResistance thermometers


cGas thermometers


dBi-metallic thermometers



Which of the following is not the triple point of water ?


a32°R


b273°K


c492°R


d32°F


View Answer 32°R

Flow rate through an orifice is _____________ the pressure differential?


aProportional to


bInversely proportional to the square root of


cProportional to the square root of


dInversely proportional to the square of



What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system ?


a1


b> 1


c< 1


dNone of these


View Answer < 1

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