Chemical Engineering MCQs

Page No. 389

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


aTransportation lag

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bFirst order system

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cSecond order system

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dNone of these

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View Answer First order system

A simple pitot tube measures the___________________?


aAverage velocity

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bMaximum velocity

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cPoint velocity

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dStatic pressure

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View Answer Static pressure

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


aIonisation

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bPirani

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cMcleod

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dNone of these

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View Answer Mcleod

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


aOrificemeter

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bOpen weir

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cKennison nozzle

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dBoth B. & C.

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View Answer Both B. & C.

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


aMelting

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bBoiling

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cBoth A. & B.

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dNeither A. nor B.

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View Answer Both A. & B.

Continuous measurement of moisture in paper is done by_______________?


aSling psychrometer

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bHair-hygrometer

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cWeighing

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dHigh resistance Wheatstone bridge circuit

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Thermal conductivity measurement is used for the determination of________________?


aO2 percentage in the flue gas

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bSpecific gravity of petrofuels

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cComposition of an alloy

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dCO2 percentage in the flue gas

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Flapper nozzle is used in a/an ______________ controller?


aElectronic

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bHydraulic

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cPneumatic

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dNone of these

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View Answer Pneumatic

Which of the following judges the accuracy of an instrument ?


aDead zone

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bDrift

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cStatic error

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dNone of these

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View Answer Static error

______________ controller has the maximum stabilising time?


aP

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bPD

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cPI

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dPID

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View Answer PI

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