Chemical Engineering MCQs

Page No. 397

Configuration of Bourdon spring tube is never made of _____________ shape?


aCircular

✓


bSemi-circular

✖


cHelical

✖


dSpiral

✖


View Answer Circular

Which of the following is not a variable area flow meter ?


aPiston type meter

✖


bRotameter

✖


cMagnetic flow meter

✓


dOrifice and tapered plug meter

✖


View Answer Magnetic flow meter

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?


aReducing value of Kc

✖


bIntroducing integral control

✓


cIntroducing derivative control

✖


dNone of the above

✖



What is the Laplace transform of impulse input having magnitude „X‟ ?


aX

✖


bX2

✖


c1/X

✖


d1

✓


View Answer 1

An aneroid barometer measures the _____________ pressure?


aAtmospheric

✖


bAbsolute

✓


cVacuum

✖


dGage

✖


View Answer Absolute

The unit of ‘time constant’ of a system is the same as that of___________________?


aVelocity

✖


bTime

✓


c(Time)-1

✖


dNone of these

✖


View Answer Time

____________ stability method uses open loop transfer function?


aNyquist

✓


bMikhailov

✖


cRuth

✖


dNone of these

✖


View Answer Nyquist

Which of the following is not a differential pressure flow meter ?


aRotameter

✓


bFlow nozzle

✖


cOrificemeter

✖


dVenturimeter

✖


View Answer Rotameter

Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) ?


aV/nRT

✓


bnRT/V

✖


cnRT/P

✖


dP/nRT

✖


View Answer V/nRT

Degree to which an instrument indicates the changes in measured variable without dynamic error is called its ___________________?


aSpeed of response

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bReproducibility

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cFidelity

✓


dStatic characteristics

✖


View Answer Fidelity

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