Related Questions

Tendency to turbulence flow is directly proportional to
A Diameter of the blood vessel
B Density of blood
C Velocity of blood flow
D Viscosity of blood
E Elasticity of vessel wall
Who has written the book 'My Frozen Turbulence in Kashmir'?
A Anees Jung
B Jagmohan
C M. J. Akbar
D Nissim Ezekiel
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?
A Segmental baffle
B Flat plate extending across the wall
C Disk type baffle
D Helical type baffle
Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan
A With greater number of blades
B Of increased diameter
C Both A & B
D Neither A nor B
In isotropic turbulence, the __________ are equal to each other.
A Temporal velocity components
B Mean square of velocity fluctuations in the three co-ordinate directions
C Root mean square of velocity fluctuations in the three co-ordinate directions
D None of these
Isotropic turbulence occurs
A Where there is no velocity gradient
B At higher temperatures
C Only in Newtonion fluids
D None of these
In the complete turbulence zone (in rough pipes), the
A Rough and smooth pipes have the same friction factor
B Laminar film covers the roughness projections
C Friction factor depends upon NRe only
D Friction factor is independent of the relative roughness
Choose the correct synonym for--- 'Extempore'
A Planned
B Improvise
C Impromtu
D Immediate
Choose the correct synonym of the world 'probity'.
A probability
B Honesty
C peaceful
D Extra-ordinary
Choose the correct synonym for 'Extempore'. ----
A Planned
B Improvise
C Immediate
D Impromptu

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