Chemical Engineering MCQs

Page No. 213

Gradually varied flow in open channel is a/an ____________ flow?


aSteady uniform


bSteady non-uniform


cUnsteady uniform


dUnsteady non-uniform


View Answer Steady non-uniform

In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?


a0


b1


c< 1


d> 1


View Answer > 1

The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its__________________?


aViscosity


bSpecific volume


cVelocity


dNone of these


View Answer Specific volume

The continuity equation__________________?


aRelates mass flow rate along a stream tube


bRelates work and energy


cStipulates that Newton’s second law of motion must be satisfied at every point in the fluid


dNone of these



A fluid is a substance, that_________________?


aHas to be kept in a closed container


bIs almost incompressible


cHas zero shear stress


dFlows when even a small shear is applied to it



The schedule number of a pipe is an indication of its_________________?


aSize


bRoughness


cMaterial density


dWall thickness


View Answer Wall thickness

Dimension of surface tension is (where, F = force, L = length) ?


aFL-1


bF-1. L


cF.L-2


dF-2. L


View Answer FL-1

Assuming flow to be laminar, if the diameter of the pipe is halved, then the pressure drop will_______________?


aIncrease


bDecrease


cRemain same


dBe quadrupled


View Answer Increase

Molten soap mass is transported by a ______________ pump?


aDiaphragm


bReciprocating


cGear


dCentrifugal


View Answer Centrifugal

The exit cone angle in case of a standard Venturimeter is _____________ the entrance cone angle?


aSmaller than


bGreater than


cEqual to


dEither A. or B.


View Answer Smaller than

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