Chemical Engineering MCQs

Page No. 154

A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?


aNewtonian

✓


bNon-Newtonian

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cIdeal

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dIncompressible

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View Answer Newtonian

With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________?


aIncreases

✓


bDecreases

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cRemains unchanged

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dFirst decreases and then increases

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View Answer Increases

In the low Reynolds number region, the drag force on a sphere is proportional to_______________?


aV

✓


bV2

✖


cV4

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dV0.5

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View Answer V

PVy = constant, holds good for an isentropic process, which is_________________?


aReversible and isothermal

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bIsothermal and irreversible

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cReversible and adiabatic

✓


dAdiabatic and irreversible

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Capillary tube method of viscosity measurement is based on the ________________?


aHagen-Poiseuille’s equation

✓


bStoke’s law

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cNavier-stokes equation

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dNone of these

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As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches_______________________?


aUnity

✖


bZero

✓


cThat of the heat of reaction

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dInfinity

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View Answer Zero

Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter indicates its________________?


aInner diameter

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bOuter diameter

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cThickness

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dNeither inner nor outer diameter

✓



Which of the following is a thermodynamic property of a system ?


aConcentration

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bMass

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cTemperature

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d Entropy

✓


View Answer Entropy

The friction factor for turbulent flow in a hydraulically smooth pipe______________?


aDepends only on Reynolds number

✓


bDoes not depend on Reynolds number

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cDepends on the roughness

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dNone of these

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In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?


aMore

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bLess

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cSame

✓


dUnpredictable; depends on the particular reaction

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View Answer Same

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