A fluid (μ/ρ) = 0.01 cm2/sec is moving at critical flow condition (NRe = 2100) through a pipe of dia 3 cms. Velocity of flow is _______________ cm/sec?
A. 7
B. 700
C. 7000
D. 630
A. 7
B. 700
C. 7000
D. 630
A. Deliver liquid at uniform pressure
B. Can handle slurries more efficiently
C. Are not subject to air binding
D. Can be operated with delivery valve closed
Reciprocating pumps compared to centrifugal pumps__________________? Read More »
Fluid Mechanics for Chemical A. Boundary friction
B. Flow contraction
C. Expansion of flow after sudden contraction
D. None of these
Major loss in sudden contraction in pipe flow is due to ________________? Read More »
Fluid Mechanics for Chemical A. 0.61 – 0.63
B. 0.5 – 0.75
C. 0.75 – 0.90
D. 0.35 – 0.55
A. Mechanical energy balance in potential flow
B. Kinetic energy balance in laminar flow
C. Mechanical energy balance in turbulent flow
D. Mechanical energy balance in boundary layer
Bernoulli’s equation describes the _______________? Read More »
Fluid Mechanics for Chemical A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
volume of circumscribing cylinder
C. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
D. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)
In case of laminar flow of fluid through a circular pipe, the__________________? Read More »
Fluid Mechanics for Chemical A. Reduce swirling and vortex formation
B. Increase the structural strength of the tank
C. Aid in rotational flow
D. None of these
Baffles in mixing tanks are provided to__________________? Read More »
Fluid Mechanics for Chemical A. Venturimeter
B. Orificemeter
C. Weir
D. Rotameter
Flow measurement in an open channel is done by a/an ________________? Read More »
Fluid Mechanics for Chemical A. Venturimeter
B. Pressure gauge
C. Pitot tube
D. Orificemeter
A. Adiabatic constant
B. Mach number
C. Weber number
D. Prandtl number
Cp/Cv is termed as__________________? Read More »
Fluid Mechanics for Chemical