Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Fluid Mechanics
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Decrease

Remain unchanged

Increase

Data insufficient to predict relative pressure drop

Decrease

Remain unchanged

Increase

Data insufficient to predict relative pressure drop

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Fluid Mechanics
The hydrodynamic and thermal boundary layers will merge, when

Nusselt number tends to infinity

Schmidt number tends to infinity

Prandtl number is one

Archimedes number is greater than 10000

Nusselt number tends to infinity

Schmidt number tends to infinity

Prandtl number is one

Archimedes number is greater than 10000

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Fluid Mechanics
Design of the casing of centrifugal pump should be such as to minimise the

Back flow through impeller

Loss of kinetic head

Loss of static head

None of these

Back flow through impeller

Loss of kinetic head

Loss of static head

None of these

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Fluid Mechanics
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

Piston

Positive displacement

Sump

Gear

Piston

Positive displacement

Sump

Gear

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Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

24000

0.24

24

0.44

24000

0.24

24

0.44

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Fluid Mechanics
Steady flow occurs, when the

Conditions are the same at the adjacent points at any instant

Conditions do not change with time at any point

Conditions change steadily with time

Rate of the velocity change is constant

Conditions are the same at the adjacent points at any instant

Conditions do not change with time at any point

Conditions change steadily with time

Rate of the velocity change is constant

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Fluid Mechanics

Fluid Mechanics Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Fluid Mechanics The hydrodynamic and thermal boundary layers will merge, when

Fluid Mechanics Design of the casing of centrifugal pump should be such as to minimise the

Fluid Mechanics Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

Fluid Mechanics The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

Fluid Mechanics Steady flow occurs, when the

Fluid Mechanics
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Fluid Mechanics
The hydrodynamic and thermal boundary layers will merge, when

Fluid Mechanics
Design of the casing of centrifugal pump should be such as to minimise the

Fluid Mechanics
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

Fluid Mechanics
Steady flow occurs, when the