Chemical Engineering MCQs

Page No. 383

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


aBellow

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bDiaphragm

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cStrip

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dBourdon tube

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View Answer Strip

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


aRadiation pyrometer

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bplatinum-platinum/rhodium thermocouple

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cIron-constantan thermocouple

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dPlatinum resistance thermometer

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


aHeat content of the system

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bLiquid volume in the tank

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cFlow rate

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dLevel of liquid

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View Answer Level of liquid

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


aStable

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bUnstable

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cCritically damped

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dNone of these

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View Answer Unstable

Humidity of air can be determined by a__________________?


aChromatograph

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bSling psychrometer

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cMass spectrometer

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dPolarimeter

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View Answer Sling psychrometer

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


aR/TS

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bR/(TS + 1)

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c1/TS

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dNone of these

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View Answer R/(TS + 1)

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


aBoth real and positive

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bComplex conjugate with positive real parts

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cBoth real and negative

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dOne real positive and the other real negative

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


aCopper-constantan

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bAluminium-Chromel

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cPlatinum-platinum + rhodium

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dNone of these

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


apH value

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bDegree of hydrolysis

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cComposition of complex ions

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dAll A., B. & C.

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View Answer All A., B. & C.

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


aHelium

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bHelium

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cHydrogen

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dNone of these

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View Answer Helium

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