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Fluid Mechanics for Chemical

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres?

Fluid Mechanics for Chemical /
A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres?

A. 2
B. 4
C. 8
D. 5.5

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres? Read More »

Fluid Mechanics for Chemical

For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ?

Fluid Mechanics for Chemical /
For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ?

A. V/Vmax = (x/r)1/7
B. V/Vmax = (r/x)1/7
C. V/Vmax = (x.r)1/7
D. None of these

For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ? Read More »

Fluid Mechanics for Chemical

The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for ______________ fluid?

Fluid Mechanics for Chemical /
The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for ______________ fluid?

A. Newtonian
B. Dilatant
C. Pseudo-plastic
D. Non-Newtonian

The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for ______________ fluid? Read More »

Fluid Mechanics for Chemical

Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm?

Fluid Mechanics for Chemical /
Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm?

A. 4
C. > 12.5
D. < 10

Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm? Read More »

Fluid Mechanics for Chemical

Which of the following conditions must be satisfied for lift force to be developed ?

Fluid Mechanics for Chemical /
Which of the following conditions must be satisfied for lift force to be developed ?

A. The body should be bluff body
B. The body should be stream lined
C. Circulation around the body is essentially required
D. The main stream velocity must approach the velocity of sound in that fluid medium

Which of the following conditions must be satisfied for lift force to be developed ? Read More »

Fluid Mechanics for Chemical