Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 72 of 73)

Attempt Fluid Mechanics for Chemical Quiz
The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is___________________?
A. 4(ro-ri)
B. √(ro-ri)
C. 2(ro-ri)
D. Ro + ri
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Pressure drop for laminar fluid flow through a circular pipe is given by__________________?
A. 4f (l/d) (v2/2gc) ρ
B. 32 (μlv/gc d2)
C. 16/nre
D. (flρ/d) (v2/2gc)
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In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is___________________?
A. The velocity of sound
B. Dependent on its cross-sectional area
C. Dependent on fluid viscosity
D. Dependent on fluid density
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Minimum fluidisation velocity for a specific system depends upon the___________________?
A. Particle size
B. Fluid viscosity
C. Density of both the particle & the fluid
D. All a., b. and c.
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The equivalent diameter for fluid flow through square cross section channel of side ‘x’, for pressure drop calculation purpose is given by____________________?
A. 4x
B. 2x
C. X
D. √x
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The most economical flow control valve for use with large diameter pipes is a__________________?
A. Butterfly valve
B. Globe valve
C. Needle valve
D. None of these
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The lift of a balloon is_________________?
A. Increased, as it rises to a higher altitude
B. Due to the weight of the atmospheric air, that it displaces
C. Not dependent on the temperature of the atmosphere
D. None of these
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Unit of mass velocity is__________________?
A. Kg/hr
B. Kg/m2. hr
C. Kg/m2
D. Kg/m3. hr
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For an ideal fluid flow, Reynolds number is___________________?
A. 2100
B. 100
C. 0
D. ∞
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Permanent pressure loss in a well designed Venturimeter is about _____________ percent of the venturi differential?
A. 1
B. 10
C. 30
D. 50
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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