Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 15 of 73)

Attempt Fluid Mechanics for Chemical Quiz
The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?
A. Length is shorter
B. Throat diameter is more
C. Sudden expansion of flow in the downstream occurs
D. Distance between the throat and the inlet is more
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Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number ?
A. Fanning equation
B. Blake-plummer equation
C. Hagen-posieuille equation
D. Kozeny-carman equation
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Which of the following flow measuring devices is an area meter ?
A. Venturimeter
B. Orificemeter
C. Anemometer
D. Rotameter
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Colebrook equation for friction factor in turbulent flow is given by, f-0.5 = -4 loge [(ε/D) + (1.26/NRe √F). It reduces to Nikuradse equation for a value of (ϵ/D) equal to __________________?
A. 0
B. 1
C. ∞
D. 0.5
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Potential function is applicable only for __________ flow?
A. Irrotational
B. Turbulent
C. Steady
D. None of these
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The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?
A. Having high viscosities
B. Moving at low velocities
C. Both a. & b.
D. Neither a. nor b.
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The losses in open channel flow generally vary as the ________________?
A. Inverse of the roughness
B. First power of the roughness
C. Square of the velocity
D. Inverse square of hydraulic radius
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Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a _________________?
A. Pitot tube
B. Manometer
C. Rotameter
D. None of these
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The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_____________________?
A. Cv . √(2gh)
B. Cc . √(2gh)
C. Cd . √(2gh)
D. Cv . va
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The component of acceleration resulting due to unsteady nature of flow is called ____________ acceleration?
A. Normal
B. Local
C. Convective
D. Tangential
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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