A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?

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Bernoulli’s equation is not applicable, when the flow is___________________?

A. Irrotational B. Incompressible C. Viscous D. All A., B. & C....

In which of the following body shapes, the pressure drag is large compared to the friction drag ?

A. Stream line body B. Two dimensional body C. Bluff body D. None of these...

In a fluidised bed reactor___________________?

A. Temperature gradients are very high B. Temperature is more or less uniform C. Hot spots are formed D. Segregation of the solids occurs...

Which of the following is not a dimension-less parameter ?

A. Pressure-co-efficient B. Froude number C. Kinematic viscosity D. Weber number...

Vane anemometer __________________?

A. Is an area meter B. Is a variable head meter C. Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed D. None of these...