Chemical Engineering MCQs

Page No. 383

The pressure sensing element of elastic type pressure gauge is never made in the form of a_________________?


aBellow


bDiaphragm


cStrip


dBourdon tube


View Answer Strip

Dome temperature of blast furnace stove is most accurately measured by a____________________?


aRadiation pyrometer


bplatinum-platinum/rhodium thermocouple


cIron-constantan thermocouple


dPlatinum resistance thermometer



The term analogous to voltage in a single tank system is the_______________?


aHeat content of the system


bLiquid volume in the tank


cFlow rate


dLevel of liquid


View Answer Level of liquid

A negative gain margin expressed in decibels means a/an ____________ system?


aStable


bUnstable


cCritically damped


dNone of these


View Answer Unstable

Humidity of air can be determined by a__________________?


aChromatograph


bSling psychrometer


cMass spectrometer


dPolarimeter


View Answer Sling psychrometer

In a single tank system, the transfer function of level to inlet flow rate is__________________?


aR/TS


bR/(TS + 1)


c1/TS


dNone of these


View Answer R/(TS + 1)

The closed loop pole of a stable second order system could be_______________?


aBoth real and positive


bComplex conjugate with positive real parts


cBoth real and negative


dOne real positive and the other real negative



Which thermocouple can be used to measure a temperature of around 1400°C ?


aCopper-constantan


bAluminium-Chromel


cPlatinum-platinum + rhodium


dNone of these



Which of the following measurements can be made by the measurement of emf ?


apH value


bDegree of hydrolysis


cComposition of complex ions


dAll A., B. & C.


View Answer All A., B. & C.

Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?


aHelium


bHelium


cHydrogen


dNone of these


View Answer Helium

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