Related Questions

If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not correct ?
A $$\left( {A + B} \right)\alpha \,C$$
B $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
C $$\sqrt {AB} \,\alpha \,C$$
D $$\frac{A}{B} = {\text{constant}}$$
Blood flow is directly proportional to
A Cross sectional area of blood vessel
B Pressure gradient
C Diameter of blood vessel
D Viscosity of blood
E Length of blood vessel
Resistance to blood flow is directly proportional to
A Viscosity of blood
B Length of blood vessels
C Velocity of blood flow
D Elasticity of vessel wall
E Fourth power of the radius of blood vessel
The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its
A Absolute viscosity
B Ratio of absolute viscosity to density
C Density
D Reynolds number
Choose the correct synonym of "Turbulence "
A Traditionally
B Certainly
C Turmoli
D Restless
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

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