Chemical Engineering MCQs

Page No. 389

The amplitude ratio for the sinusoidal response of __________ is < 1?


aTransportation lag


bFirst order system


cSecond order system


dNone of these


View Answer First order system

A simple pitot tube measures the___________________?


aAverage velocity


bMaximum velocity


cPoint velocity


dStatic pressure


View Answer Static pressure

Pressure of 0.01 psi (absolute) can be measured by ______________ gauge?


aIonisation


bPirani


cMcleod


dNone of these


View Answer Mcleod

Flow rate of sludge is not measured by a/an_________________?


aOrificemeter


bOpen weir


cKennison nozzle


dBoth B. & C.


View Answer Both B. & C.

Temperature measuring instruments are standardised mostly with _____________ points of pure substances?


aMelting


bBoiling


cBoth A. & B.


dNeither A. nor B.


View Answer Both A. & B.

Continuous measurement of moisture in paper is done by_______________?


aSling psychrometer


bHair-hygrometer


cWeighing


dHigh resistance Wheatstone bridge circuit



Thermal conductivity measurement is used for the determination of________________?


aO2 percentage in the flue gas


bSpecific gravity of petrofuels


cComposition of an alloy


dCO2 percentage in the flue gas



Flapper nozzle is used in a/an ______________ controller?


aElectronic


bHydraulic


cPneumatic


dNone of these


View Answer Pneumatic

Which of the following judges the accuracy of an instrument ?


aDead zone


bDrift


cStatic error


dNone of these


View Answer Static error

______________ controller has the maximum stabilising time?


aP


bPD


cPI


dPID


View Answer PI

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