Chemical Engineering MCQs

Page No. 198

Absolute viscosity of a fluid is a function of the __________ of the fluid?


aMotion


bPressure & temperature


cShearing stress


dBoth B. & C.


View Answer Both B. & C.

Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent ?


aTemperature


bNature of solute


c Pressure


dNature of solvent


View Answer Pressure

For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by_______________?


a∂u/∂x = 0


b∂(ρu)/∂x = 0


c(∂u/∂x) = – (∂ρ/∂t)


d∂ρ/∂t = 0


View Answer ∂u/∂x = 0

According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?


aT


bT0.5


cT1.5


dT2


View Answer T0.5

The ____________ is measured by a piezometric opening?


aDynamic pressure


bStatic pressure


cTotal pressure


dPoint velocity


View Answer Total pressure

The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is _____________ kg mole?


a1


b 0


c16


d44


View Answer 0

Which of the following is not concerned with the fluid-particle interaction ?


aDrag co-efficient


bFroude number


cGalileo number


dWeber number


View Answer Weber number

Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?


aCarbonate (monohydrate)


bChloride


cThiosulphate


dBisulphite



Fluidised beds are formed, when the__________________?


aFluid friction is zero


bGravity force is less than the fluid friction


cPressure forces equal gravity forces


dSum of the fluid friction and pressure forces is equal and opposite to gravity forces



The temperature of a gas in a closed container is 27° C. If the temperature of the gas is increased to 300° C, then the pressure exerted is___________________?


aDoubled


bHalved


cTrebled


dUnpredictable


View Answer Unpredictable

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