Q. Cavitation in a centrifugal pump can be avoided by keeping the

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Q. Vane anemometer

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Q. Terminal velocity is

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Q. Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.

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Q. For an incompressible fluid, the bulk modulus of elasticity is

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Q. A fluid is a substance, that

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Q. The pressure intensity is the same in all directions at a point in a fluid

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Q. Quicksand is an example of a __________ fluid.

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

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Q. Differential manometer measures the

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Q. The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density.

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Q. Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the

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Q. In case of end to end connection of two or more pipes in series, the __________ each pipe.

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Q. Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number ?

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Q. The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its

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Q. Centrifugal pump can't be used to pump

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Q. A stream line is

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Q. Which of the following must be followed by the flow of a fluid (real or ideal)?

(I) Newton's law of viscosity.
(II) Newton's second law of motion.
(III) The continuity equation.
(IV) Velocity of boundary layer must be zero relative to boundary.
(V) Fluid cannot penetrate a boundary.

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Q. Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible ?

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Q. Boundary layer exists in flow

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