Chemical Engineering MCQs

6108 MCQs  (Page 398 of 611)

Mass velocity is independent of temperature & pressure, when the flow is______________________?
A. Unsteady through unchanged cross-section
B. Steady through changing cross-section
C. Steady and the cross-section is unchanged
D. Unsteady and the cross-section is changed
Water hammer in a pipeline results from the____________________?
A. Bursting of pipelines due to closure by a valve
B. Rapid pressure change due to a rapid change in the rate of flow
C. Pressure increase due to closure of a valve resulting in decrease in rate of flow
D. None of these
With increase in the shear rate, the apparent viscosity of pseudo-plastic fluids__________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease; depends on the magnitude of shear rate