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.Management Sciences
Category: Fluid Mechanics for Chemical
Euler’s equation of motion is a statement expressing____________________?
A. Conservation of mass
B. Conservation of energy
C. Newton’s first law of motion
D. Newton’s second law of motion
Fanning friction factor is equal to (where, fB = Blasius friction factor) ?
A. fB/4
B. fB/2
C. 4fB
D. 2fB
Slugging in a fluidised bed can be avoided by using_____________________?
A. Tall narrow vessel
B. Deep bed of solids
C. Shallow beds of solids and proper choice of particle size
D. Very large particles
Choose the set of pressure intensities that are equivalent ?
A. 4.33 psi, 10 ft. of water, 8.83 inches of Hg
B. 4.33 psi, 10 ft. of water, 20.7 inches of Hg
C. 10 psi, 19.7 ft. of water, 23.3 inches of Hg
D. 10 psi, 19.7 ft. of water, 5.3 inches of Hg
Which of the following factors does not contribute to the pressure drop in a pipeline ?
A. Velocity of fluid
B. Size of pipe
C. Length of pipe and number of bends
D. None of these
The fluid property which matters for falling rain drops to acquire spherical shape is its__________________?
A. Pressure
B. Height of descend
C. Viscosity
D. Surface tension
In case of a ____________ the energy of flow is considerably decreased downstream of the machine?
A. Blower
B. Turbine
C. Centrifugal pump
D. Centrifugal fan
Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the ____________ head?
A. Manometric
B. Total
C. Static
D. Friction
Drag force acting on a body does not depend upon the____________________?
A. Density of the fluid
B. Density of the body
C. Velocity of the body
D. Projected area of the body
The valve commonly used in pipes larger than 2″ dia is a______________?
A. Globe valve
B. Plug-cock
C. Gate valve
D. Check valve
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